• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE537158C2
    申请号:SE1050864
    申请日:2010-08-24
    公开日:2015-02-24
    发明作者:David Allan Rickard；Bradley D Bloomquist；Melissa Allen；Nicholas R Gilman；Jennifer M Bowie；William Earl Russell
    申请人:Ge Hitachi Nucl Energy America；
    IPC主号:
    专利说明:

    [1] Examples of embodiments generally relate to isotopes and apparatus and processes for their production in nuclear power reactors.
    [2] Radioisotopes have many different medical and industrial applications, such as those capable of emitting discrete amounts and types of ionizing straining and forming useful daughter products. Radioisotopes are, for example, useful in cancer treatment, technology for medical imaging and marking, diagnosis of cancer and other diseases and medical sterilization.
    [3] Radioisotopes having half-lives of the order of days are usually produced by neutron bombardment of stable parent isotopes in accelerators or reactors with low power on site at medical or industrial plants or nearby production plants. of radioisotopes needed in specific applications. Furthermore, on-site production of radioisotopes usually requires unmanageable and expensive irradiation and extraction equipment, which may be excluded at the end-use facility due to cost, space and / or safety requirements.
    [4] Due to similarities in the production and longevity of short-lived radioisotopes, the demand for such radioisotopes can greatly exceed the supply, especially for those radioisotopes that have significant medical and industrial applications in the field of constant demand such as cancer treatment.
    [5] Examples of embodiments relate to processes for the production of desired isotopes in commercial nuclear reactors and subsequent jet templates. In examples of processes, instrument tubes normally found in nuclear reactor tanks can be used to expose beam targets to the neutron flood occurring in nuclear reactors in operation.
    [6] Examples of embodiments include jet templates for use in nuclear reactors and their instrument tubes. Examples of embodiments may include one or more beam templates that may be used with examples of supply systems that allow the supply of beam templates. Examples of embodiments may be dimensioned, shaped, fabricated and otherwise configured to be successfully moved through examples of supply systems and conventional instrument tubes.
    [7] Examples of embodiments will become apparent by a detailed description of the accompanying drawings, in which like elements are designated by like reference numerals, which are given by way of illustration only and thus do not limit the examples of embodiments herein.
    [8] Fig. 1 is an illustration of a conventional nuclear reactor with a plurality of instruments.
    [9] Fig. 2 is an illustration of an example of an embodiment of a system for supplying exemplary embodiments to an instrument tube in a nuclear reactor.
    [10] [0010] Fig. 3 is a detail view of the example of the embodiment of the system in Fig. 2.
    [11] [0011] Fig. 4 shows a detailed view of the example of the embodiment of the system in Fig. 3.
    [12] Fig. 5 is an illustration of a TIP system in a conventional nuclear reactor.
    [13] Fig. 6 is an illustration of a further example of an embodiment of a system for testing examples of embodiments of an instrumentation in a nuclear reactor.
    [14] Fig. 7 is an illustration of several examples of embodiments of beam mills combined with examples of supply systems.
    [15] Fig. 8 is an illustration of an example of an embodiment of a beam template.
    [16] Fig. 9 is an illustration of another example of an embodiment of a beam template.
    [17] Fig. 10 is an illustration of another example of an embodiment of a beam template. 2 537 158
    [18] Fig. 11 is an illustration of several examples of embodiments of beam mill combined with an alternative example of the supply system.
    [19] Detailed illustrative embodiments of exemplary embodiments are described in FIG. However, specific structural and functional details described herein are intended solely for the purpose of describing exemplary embodiments. However, the examples of embodiments may be embodied in many alternative forms and should not be construed as merely limiting, for example, embodiments set forth herein.
    [20] It will be appreciated that although the terms first, second, etc. can be used here to describe different elements, its elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element could be called a second element and similarly a second element could be called a first element without deviating from the scope of examples of embodiments. As used herein, the term "and / or" includes all combinations of one or more of the following listed items.
    [21] It is to be understood that when referring to an element as being "connected to", "connected to", "paired with", "fixed to" or "fixed to" another element, it may be connected or connected directly to the second element or also intermediate elements may occur. When referring to an element as being "directly connected" or "directly connected" to another element, however, there are no intermediate elements. Other words used to describe the relationship between elements should be interpreted in a similar way (eg "between" compared to "directly between", "next to" compared to "directly next to", etc.).
    [22] The purpose of the terminology used here is only to describe particular embodiments and is not intended to be limiting of, for example, embodiments. As used herein, the singular forms "en" and "ett" as well as the singular forms in the definite form "-en", "-ct", "-n", "-t", etc. are referred to. avn include the plural forms, savida language does not explicitly state anything else. In addition, it is to be understood that the terms "includes", "includes", "includes", "includes", "includes" and / or "includes", when used herein, specifies the occurrence of specified features, integers, steps, steps, elements and / or components but they do not exclude the occurrence or addition of one or more features, integers, steps, work steps, components and / or groups thereof.
    [23] It should also be noted that the specified functions / actions in certain alternative implementations may take place in a different order from that indicated in the figures. For example, two figures shown in sequence can in fact be performed substantially and simultaneously, or can sometimes be performed in reverse order, depending on the input functions / actions.
    [24] Fig. 1 is an illustration of a conventional reactor pressure tank 10 which may be used with examples of embodiments and examples of processes.
    [25] The instrument tubes 50 may terminate below the reactor pressure tank 10 in the primer space 20. The instrument tubes 50 usually allow insertion of neutron detectors and other types of detectors therein through an opening at the lower end of the primer space 20. These detectors may be extended upwardly through the instrument tube 50 to monitor conditions in the hardener 15. Examples of conventional types of monitoring devices include wide range detectors (WRNMs), source range monitors (SRMs), monitors. with intermediate range monitors (IRNI) and / or local power range monitors (LPRM). Although the reactor pressure tank 10 is shown with components commonly found in commercial boiling water reactors, examples of embodiments and processes may be combined with several different reactor types with instrument tubes or other access tubes extending into the reactor. etc. with a power rating from below 100 Megawatt electric power to several Gigawatt electric power and with instrumentation 50 in several other places than those shown in Fig. 1 35 can be used with examples of embodiments and procedures. The instruments 50 which can be used in examples of processes can as such be any projecting feature of any geometry around the core 15 which allows enclosing to trade to the flow in the nuclear reactor core in different types of reactors.
    [27] Applicants have realized that instrument tubes 50 can be used to rapidly and continuously produce desired isotopes on a large scale without the need for chemical separation or isotope separation and / or to wait for shutdown of the reactor in 4,537,158 commercial reactors. Examples of methods may include inserting jet template into the instrument tubes 50 and exposing the jet template to the hardener 15 during operation, thereby exposing the jet template to the neutron flux normally occurring in the core 15 when the reactor is in operation. The hardness flood can convert an essential part of the beam template into a usable radioisotope, including short-lived radioisotopes that can be used in medical applications. Beams can then be removed from the instrument tubes 50, also during paging operation of the hardener 15, and deposited for medical and / or industrial use.
    [28] Examples of supply systems are discussed below in connection with examples of embodiments of jet templates that can be used with them, which are described in detail later. It is understood that examples of an embodiment of beam template may be used with other types of supply systems other than those described below.
    [29] Figs. 2-6 are illustrations of related systems for supplying examples of an embodiment of jet mill to a nuclear reactor, described in the co-pending application SE 1 050 867, given the same date as this, entitled "CABLE DRIVEN ISOTOPE DELIVERY SYSTEM ", the contents of which are inserted in their entirety by male display. Examples of an embodiment of beam grinding retention apparatus can be used with the related systems described in Figures 2-6; but it is understood that other supply systems may be used with the example of the embodiment of the beam grinding apparatus.
    [30] Fig. 2 shows a related wired isotope supply system 1000 in which the instrument tube 50 can be used to supply an example of an embodiment of jet mill to the reactor pressure tank 10 (Fig. 1). Wired isotope supply systems 1000 may be capable of passing over a jet template from a loading / unloading area 2000, to an instrument tube 50 in the reactor pressure tank 10 and / or from the instrument tube 50 in the reactor pressure tank 10 to the loading / unloading area 2000. As shown in Fig. 2, Cable driven isotope supply systems 1000 include a cable 100, pipeline 200a, 200b, 200c and 200d, a drive mechanism 300, a first conductor 400, and / or a second conductor 500. The pipeline 200a, 200b, 200c and 200d may be sized and configured to accommodate it. possible for the cable 100 to slide clan. Similarly, pipelines 200a, 200b, 200c and 200d may act as conductors for cable 100 from one point in the wired isotope supply system 1000 to another point in the wired isotope supply system 1000. For example, pipelines 200a, 200b, 200c and 200d may lead the cable 100 from a point outside the containment structure 411 (Fig. 1) to a point in the instrument tube 50 inside the containment structure 411.
    [31] An example of a cable 100 is shown in Figures 3 and 4. The example of the cable 100 may have at least two parts: 1) a relatively tangent driving part 110; and 2) a 537 158 grinding part 120. The driving part 110 of the cable 100 can be made of materials whose cores have laid cross-sections such as aluminum, silicon and / or stainless steel. The driving part 110 of the cable 100 can be flattened to increase the curvature and / or half-strength of the cable 100 so that the cable 100 can be bent more easily and, for example, be able to be wound up on a roll. Although it is easy to b. * The cable 100, the cable 100 may also be sufficiently rigid in the axial direction so that the cable 100 can be pushed through the pipeline 200a, 200b, 200c and / or 200d without knocking.
    [32] As shown in Fig. 4, the mold portion 120 of the example of the cable 100 may include a plurality of examples of embodiments of the beam mold 122. The mold portion 120 may be attached to a first end 114 on the drive shaft 110. The length of the mold 120 may be many. various factors, including the material of the jet template, the size and shape of the example of the embodiment of the jet template 122, the amount of straining to which the target is expected to be exposed and / or the geometry of the instrument tube 50. As an example, the mold portion 120 may be about 12 feet long.
    [33] Referring to Figs. 3-4, the grinding member 120 may include a first lid 126 at a first end 127 of the grinding member 120 and a second lid 128 at a second end 129 of the grinding member 120. The first lid 126 may be configured for to be secured to a first end 114 on the drive member 110. The first end 114 of the drive member 110 and the first cover 126 may form a quick connect / quick disconnect connection. The first cover 126 may, for example, comprise a dial * part with internal passages 126a. The first end 114 of the drive member 110 may comprise a connector 113 with external passages which may be designed to be connected to the inner passages 126a of the first cover 126. Although the example of the connection shown in Figs. 3 and 4 is described as a wired connection, those skilled in the art will appreciate various other methods of connecting the ground part 120 of the cable 100 to the drive part 110 of the cable 100.
    [34] An operator can design the first conductor 400 and the second conductor 500 so that the cable 100 can be routed to a desired final template. For example, between the loading / unloading area 2000 and the instrument tube 50.
    [35] After configuring the first and second conductors 400 and 500, an operator may operate the drive system 300 to advance the cable 100 through the conduit 200a, the first conductor 400, and the second conductor 200b, to position the first end 114 of the drive part 110 of the cable 100 in the loading / unloading area 2000. An operator can advance the cable 100 by controlling a snack shaft in the drive system 300 which is connected to the cable 100. The layer for the first second 114 of the drive part 110 of the cable 100 can be saved via markings 116 on the cable 100. Alternatively, the layer for the first second 114 of the drive part 110 of the cable 100 may be removed from information collected from a converter which can be connected to the drive system 300.
    [36] After the cable 100 has been placed in the loading / unloading area 2000, the example of an embodiment of beam template 122 can be connected to the cable 100 as described below with reference, for example, to an embodiment of beam template. An operator can maneuver the drive system 300 to pull the cable from the loading area 2000 through the pipeline 200b and through the first conductor 400. The operator can then reconfigure the first conductor 400 to sand the cable 100 and the example of the beam template 122 to After the first conductor 400 has been reconfigured, the operator can advance the cable 100 through the third conductor 200c, the second conductor 500, the fourth conductor 200d and into a desired instrument tube 50. The first spirit 114 made of the cable 100 drive part 110 can be tensioned via markings 116 on the cable 100. Alternatively, the layer for the first second 114 of the cable part 110 of the cable 100 can be removed from information collected from a converter which may be connected to, for example, a snack shaft.
    [37] After the cable 100 carrying the exemplary embodiment of jet template 122 has advanced to the lamp layer within the instrument tube 50, the operator can stop the cable 100 in instrument tube 50. At this point, the jet template 122 can be irradiated for an appropriate period of time in the nuclear reactor. After irradiation, the operator can operate the system 300 to pull the cable 100 out of the instrument tube 50, the fourth conductor 200d, the second conductor 500, the third conductor 200c and / or the first conductor 400.
    [38] An operator can drive the drive system 300 to advance the cable 100 through the first conductor 400, and the second pipeline 200b, to place the first end 114 of the drive portion of the cable 100 and the example of the embodiment of the jet template 122 in the loading / unloading area. 2000. The sample of the beam template 122 can be removed from the cable 100 and stored in a transfer vessel or on another black stalk. An example of a transfer vessel may be made of lead, tungsten, and / or depleted uranium to adequately shield the beam template 122. Attaching and unloading of the example of the beam template 122 may be facilitated by the use of cameras that can be placed in loading / unloading tanks. the relief area 2000 in order to make it possible for the operator to inspect the equipment visually during operation.
    [39] An alternative delivery system involves the use of a conventional "Transverse In-core Probe (TIP)" system. A conventional TIP system 3000 is shown in Fig. 5. As shown in Fig. 5, the TIP system 3000 may include a drive system 3300 for driving a cable 3100 and a pipeline 3200a between the drive system 3300 and a shielded chamber 3400, conduit 3200b Indian. the shielded chamber 3400 and a valve 3600, conduit 3200c between the valve 3600 and a conductor 3500 and a conduit 3200d between the conductor 3500 and an instrument tube 50. The cable 3100 may be similar to the cable 100 described with reference to Figs. 2-4. The conductor 3500 of the conventional TIP system 3000 can direct a TIP sensor to a desired instrument tube 50. The shielded chamber 3400 may resemble a barrel filled with small lead bullets. In the shielded chamber 3400, the TIP sensor can be stored when not in use in the reactor pressure tank 10. The valve 3600 is a safety device used in the TIP system.
    [40] Since the TIP system comprises a conductor system 3200a, 3200b, 3200c and 3200d and / or a conductor 3500 for guiding a cable 100 into the instrument tube 50, these systems can be used as an example of a supply mechanism for an example. on an embodiment of beam template 122.
    [41] Fig. 6 shows an example of a supply system comprising a TIP system 4000. As shown in Fig. 6, the modified TIP system 4000 is similar to the conventional TIP system 3000 shown in Fig. 5, with a conductor 4100 is inserted between the shield chamber cradle 3400 and the valves 3600 on the conventional TIP system 3000. The conductor 4100 can be used as an access point for insertion of a cable, for example the cable 100, into the modified TIP system 4000. As shown in Fig. 6, the drive system 300 (Fig. 2) is placed parallel to the drive system 3300 of the modified TIP system 4000. The drive system 300 may include a tulle 320 for storing cables on which the cable 100 can be wound. The rudder 200a may extend from the drive system 3300 to the conductor 400 which may direct the cable 100 to a desired location. Rather than having a starting point which can direct the cable 100 towards the second conductor 500 (Fig. 2), the first conductor 400 in the modified TIP system 4000 can instead be configured to direct the cable 100 to the conductor 4100. On this salt it can first conductor 400 lcda cable 100 into the modified TIP system 4000 conductor via conductor 4100.
    [42] The cable 100 should be dimensioned to function with existing pipelines in examples of supply systems and possible passage for the example of the embodiment of beam template 122. The inner diameter of the pipeline 3200a, 3200b etc. can for instance amount to approximately 0.3 barrels. Consequently, the cable 100 can be dimensioned so that the dimensions perpendicular to the cable 100 do not exceed 0.3 tutu Example of embodiment of beam template
    [43] Since examples of supply systems have been described, examples of an embodiment of jet templates that can be used with them will now be described. The sub-sample template device can be configured / dimensioned / shaped / etc. to interact with the example of feed systems discussed above, but examples of targets can also be used in other feed systems and processes for irradiation in a nuclear reactor.
    [44] Fig. 7 is an illustration of an example of an embodiment of beam template 122a, 122b and 122c. As shown in Fig. 7, the jet template 122a, b and c can be used with and / or replace certain features shown in Fig. 4 in connection with examples of supply devices discussed above. In particular, the grinding part 120 may contain examples of an embodiment of a jet template 122a instead of a second lid 128 at one end of the grinding part 120. The grinding part 120 may further contain an example of an embodiment of a jet template 122c instead of the first duct 127 with a lid 126 with internal passages 126a for connection to the drive part 110 (Fig. 3). Alternatively, the second cover 128 and / or the first cover 126 may be present and usable with the example of the embodiment of jet templates 122a, 122b and 122c. 8 537 158
    [45] Individual examples of beam templates 122a, 122b and 122c are discussed below with reference to Figs. 8-10. The various examples of embodiments 122a, 122b, 122c, may each be made of or contain one or more materials that are converted to desired daughter products when exposed to a neutron flux. A stealing He a mid that is irradiated for the purpose of generating radioisotopes. Consequently, sensors which can be irradiated with a chamber reactor and which can generate radioisotopes do not fall within the scope of the term used as such because their purpose is to detect the condition of the reactor rather than to generate radioisotopes.
    [46] Materials for the beam grinder 122a, 122b and 122c and the length of the exposure time in the instrument tube 50 can be selected to determine the type and concentration of the radioisotope produced. That is, since axial radiation levels are known as a reactor in operation and since examples of embodiments may allow precise control of the axial layer of the jet grinder 122 as in examples of supply devices, the type and dimension of the jet grinder 122 and the exposure time may used to determine the radioisotopes obtained and their potency. By those skilled in the art and by reference to conventional decay and cross-sectional diagrams, it is clear what type of beam template 122 will give desired radioisotopes at a given exposure to a particular amount of neutron flux. Furthermore, the beam template 122 can be selected on the basis of its neutron cross-section, in order to have an advantageous effect or to prevent the large neutron flow at the known axial layers in a reactor hard in a commercial chamber reactor in operation.
    [47] For example, it is known that molybdenum-98 can be converted to molybdenum-99 with a half-life of about 2.7 days upon exposure to a particular amount of neutron flux. Molybdenum-99 in turn falls to technetium-99m with a half-life of approximately 6 hours. Teluietium-99m has several specialized medical uses, including medical imaging and cancer diagnosis and a short half-life. By using jet mill 122 made of molybdenum-98 and exposed to a neutron flood in a reactor operating on the basis of the dimension of the jet mill 122, molybdenum-99 and / or technetium-99m can be generated and harvested in Example 30 on an embodiment of units and procedures by determining the mass of the jet mill containing Mo-98, the axial bearing of the mill in the reactor core of the nuclear reactor in operation, the axial gain of the reactor core in the nuclear reactor in operation and the length of the jet mill exposure time. In addition, since both Mo-98 and Tc-99m are solids, examples of targets can be made entirely of Mo-98 or of natural molybdenum without the need for additional containment, which may be required for liquid or gaseous targets and subsidiaries. Other pairs of solid moth / daughter products may also benefit from not requiring further containment and allow maximum mass for moth / daughter, including, for example, iridium / platinum.
    [48] Fig. 8 is an illustration of an example of an embodiment of a beam template 122a. The example of the jet grinding 122a has such dimensions that it can be inserted into the instrument tubes 50 (Fig. 1) used in conventional nuclear reactors and / or 9 537 158 through any tubing used in supply systems. The beam target 122a may, for example, have a maximum outer diameter of one turn or less. Similarly, the jet grinding 122a may have a maximum outer diameter / circumference substantially equal to the outer diameter / circumference of other jet templates 122b and 122c, to provide a grinding member 120 (Fig. 7) having a constant outer diameter / circumference. The example of the embodiment of the jet grinding 122a may be cylindrical; alternatively, the example of beam template 122a may have several different suitably dimensioned shapes, including stares, hexahedrons, cones and / or prism shapes.
    [49] Examples of an embodiment of jet template 122a include a halter 123a and a tapered dcl 125a. The tail 123a passes through the jet mill 122a and has a layer and a diameter which made it possible for a wire 124 (Fig. 7) or any other connection mechanism in the example of retaining devices to pass through and hold the jet mill 122a. The tail 123a can be dimensioned to make it possible for the example of the embodiment of the beam grinding 122a to slide freely on the trapped wire 124 or to be formed by the trapped wire 124 by friction in a static layer.
    [50] The tapered portion 125a is located at the front end of the exemplary embodiment of the jet grind 122a with respect to the grinding portion 120 (Fig. 7). The tapered portion 125a may be curved and tapered at a desired angle, to or near the tail 123a, to provide a wedge-shaped leading edge of the grinding portion 120. The tapered portion 125a is shaped and coated at the front end of the grinding portion 120 to allow easier navigation of the grinding member 120 through the pipeline in examples of supply systems and instrument tubes 50. The tapered member 125a may reduce or prevent hooking or clamping in the pipeline and instrument tubes 50 as the grinding member 120 is advanced therethrough.
    [51] The example of the embodiment of the beam grinding 122a may further comprise one or more rounded or chamfered edges 121a. The edges 121a may be rounded, chamfered or may otherwise have been smoothed at any point where an edge or protrusion may hook into or rub against the outer conduit or instrument tube 50, as in narrower corners of the conduit in examples of supply devices. The example of the embodiment of the jet grinding 122a may have a total length which further facilitates the movement through the hooks of the pipeline in examples of supply devices and / or instrument tubes 50. The grinding 122a may, for example, have a total length of about 1 / 2-1 inch to move through hooks without to get stuck.
    [52] As shown in Fig. 7, the example of the embodiment of the jet grinding 122a can be placed at the front end of the wire 124. To keep the taper 125a at the front end and facilitate the movement of the grinding member 120 through each pipeline and instrument tube 50, the example embodiment of the jet grinder 122a can be statically joined to the wire 124 at this position by, for example, letting the tail 123a catch and friction preventing the jet grinder 122a Movement in relation to the wire 124. Alternatively, the example of the embodiment of the beam template 122a can be connected to other beam templates 122b / c and / or to the drive part 110 for holding the tapered part 125a at the leading edge of the mold part 1 537 158. In addition, as discussed below, alternative mechanisms for securing the example of the embodiment of the jet grinder 122a may be used to hold the tapered portion 125a at the leading edge of the grinding member 120.
    [53] Fig. 9 is an illustration of an example ph an embodiment of a beam template 122b. The example ph mill 122b has such dimensions that it can be inserted into instrument tubes 50 (Fig. 1) as anyands in conventional nuclear reactors and / or through any tubing as anyands in supply systems. The beam 122b may, for example, have a maximum outer diameter of 0.3 turns or less. Similarly, the beam grinder 122b may have a maximum outer diameter / circumference substantially equal to the outer outer diameter / circumference of other jet dies 122a and 122c, to provide a grinder 120 (Fig. 7) having a constant maximum outer diameter / circumference. The example of the embodiment of the jet grinding 122b may be cylindrical; alternatively, the example of beam template 122b may have several different suitably dimensioned shapes, including stares, hexahedrons, cones and / or prism shapes.
    [54] The example of the embodiment of the jet grinding 122b may further comprise one or more rounded or chamfered edges 121b. The edges 121a may be rounded, chamfered or may otherwise have been smoothed at each point where an edge or protrusion may hook or rub against the outer conduit or an instrument tube 50, as in narrower hooks in the conduit in examples of supply devices. The example of embodiments of jet template 122b may have an overall length which further facilitates the movement through hooks in the pipeline in the example ph supply devices and / or instrument tubes. The grind 122b can, for example, have a total length of about 1 / 2-1 turn to be able to move through hooks without getting caught. The example of the embodiment of the jet grinding 122b comprises a hal 123b. The tail 123b passes through the beam grinder 122b and has a straight and a diameter which makes it possible for a wire 124 (Fig. 7) or any other connection mechanism in the example of retaining devices to pass through and hold the beam grinder 122b. The tail 123b can be dimensioned to make it possible for the example of the embodiment of the jet grind 122b to slide freely on the caught wire 124 or to be combined with the caught wire 124 by friction in a static layer.
    [56] Fig. 10 is an illustration of an example ph an embodiment of a beam template 122c. The example of the jet grinder 122c has such dimensions that it can be inserted into instrument tubes 50 (Fig. 1) used in conventional nuclear reactors and / or through any pipeline used in supply systems. For example, the jet grinder 122c may have a maximum outer diameter of about 0.3 inches or less. Similarly, the jet grinder 122c may have a maximum outer diameter / circumference substantially equal to the outer diameter / circumference of other jet dies 122a and 122b, or a first lid 126, to provide a grinding member 120 (Fig. 7) having a constant maximum outer diameter / circumference. . The example of the embodiment of the jet grinding 122c may be cylindrical; alternatively, the example of beam template 122c may have several different suitably dimensioned shapes, including spheres, hexahedrons, cones and / or prism shapes. 11 537 158
    [57] The example of the embodiment of the jet grinding 122c may further comprise one or more rounded or chamfered edges 121c. The edges 121c may be rounded, chamfered or otherwise smoothed at each point to prevent or reduce the risk of an edge or protrusion getting caught in or rubbing against the outer tubing or instrument tube 50, as in narrower hooks in the pipeline in the example of supply devices. The example of the embodiment of the jet grinding 122c may have a total length which further facilitates movement through the hooks of the pipeline in the example of supply devices and / or instrument tubes 50. The grinding 122c may, for example, have a total length of approximately 1 / 2-1 turns to move through hooks without getting stuck.
    [58] The example of the embodiment of the jet grinding 122c comprises a hl 123b. The tail 123c can pass through the beam grinder 122b and has a bearing and a diameter which makes it possible for a wire 124 (Fig. 7) or any other connection mechanism in examples of retaining devices to pass through and hold the beam grinder 122b.
    [59] As shown in Fig. 7, one or more examples of an embodiment of beam template 122a / b / c may be threaded on the wire 124. While examples of embodiments have been shown and described in Fig. 7 as having the grinding portion 122a at a front edge, one or more feed 122b in a middle portion and millet 122c connected to a drive portion 110 yid a trailing edge to facilitate reduced hooking and friction when inserting and removing the jet grinder 122 through the pipeline and instrument tubes 50, and to maximize production and harvests of desired subsidiary products, it is understood that other arrangements, combinations and inclusions of additional structures, for example in one embodiment of beam template 122a / b / c, are all equally possible.
    [60] Examples of an embodiment of beam template 122 a / b / c are shown appearing on a wire 124 to preserve their position in the template portion 120. It is understood that several other alternative connection mechanisms may be implemented to ensure a position and / or arrangement of examples of embodiments of food 122. The shark 123a / b / c shown in the example of the embodiment of beam template 122a / b / c may, for example, have an internal passage with internal passages 126a or have other internal configurations as well as possible for the wire 124 to be connected to and / or moved through the jet template 122 a / b / c or also the examples of food 122a / b / c can for example be held together by an adhesive resin 12 537 158 which is configured to retain its adhesive properties when exposed to the conditions in an instrument tube 50 in a nuclear reactor in operation.
    [61] As shown in Fig. 11, the wire 124 may further comprise one or more holding points 124a. The attachment points 124a may include washers or knots in the wire 124 which extend the cross section of the wire 124 at the attachment points 124a.
    [62] In this way, one or more jet templates 122 can be placed in / connected to a supply system, such as those shown in Figs. 2-6, and successfully fed to an instrument tube 50 for irradiation. Examples of an embodiment of the beam template 122 may allow several different types of beam template 122 to be placed in the instrumentation 50. Since several examples of may 122 can be placed at exact axial levels within an instrument tube 50, it may be possible to provide a more precise amount / type. of beam template 122 at a particular axial level within the instrument tube 50. Since the axial flow profile may be known in the reactor in operation, this may allow a more accurate generation and feeding of usable radioisotopes in beam template 122 placed within examples of the embodiment of beam retention devices. Several different radioisotopes can be generated in examples of embodiments and examples of procedures. Examples of embodiments and examples of procedures can have a particular advantage in that they allow the generation and harvesting of corded radioisotopes in a relatively short period of time compared to the half-lives of the radioisotopes produced, without shutting down a commercial reactor, which is possibly a very expensive process. and without risky and lengthy isotope and / or chemical extraction processes. Although it is possible to produce short-lived radioisotopes with diagnostic and / or therapeutic applications using apparatus and procedures, radioisotopes with industrial applications and / or long half-lives can also be generated.
    [63] Through examples of embodiments thus described, it will be appreciated by those skilled in the art that the examples of embodiments may be varied by routine experimentation and without further innovative activity. Variations are not to be construed as deviating from the spirit and scope of the examples of embodiments, and any such modifications as would be apparent to those skilled in the art are not intended to limit the scope of the following claims. 13
    权利要求:
    Claims (9)
    [1]
    A jet grinding system comprising: a first jet grinding (122a) disposed at a front end of a grinding member (120) of a supply system (4000), the first jet grinding having a spirit (125a) tapered toward the front end; a second jet template (122c) coated behind the first jet template (122a), the second jet template (122c) not tapered; wherein the first jet template and the second jet template are dimensioned to fit within an instrument tube (50) in a nuclear reactor and to fit within a tube (200) in the supply system (4000); and wherein the first jet template and the second jet template are configured to substantially transform into a different subsidiary product when exposed to a neutron flood in a nuclear reactor in operation.
    [2]
    The system of claim 1, wherein the second beam template (122c) is configured to be connected in a movable manner to a drive member (no) of the supply system (4000).
    [3]
    The system of claim 2, further comprising a third beam template (122b) disposed between the first (122a) and the second (122c) beam template, and wherein the second (122c) and third (122b) beam templates are cylindrical and have substantially similar outer diameter as the second beam mill.
    [4]
    The system of claim 1, wherein each beam template (122a, 122c) is made of a material that is substantially converted to a different daughter product with a half-life of 75 days or less.
    [5]
    The system of claim 1, further comprising: a wire (124) passing through each jet template (122a / 122c) to the grinding member (120), the jet template (122a / 122c) defining a slide (123) passing through each 14 537 158 beam template (122a / 122c), each hall (123) having a diameter configured to secure the respective beam template to the wire (124).
    [6]
    The system of claim 5, wherein the wire (124) is made of a material that is substantially converted to a product with a half-life of 75 days 5 or less.
    [7]
    An isotope supply system, comprising: a wire (124); a first jet template (122a) connected to the wire (124), the first jet template (122a) having a spirit (125a) tapered towards a front end of a grinder portion of the isotope supply system; a second jet template (122c) coated behind the first jet template (122a), the second jet template (122c) not tapered; a drive system (300) configured to move the wire (124) and the first and second jet mills (122a / 122c) into an instrument tube (50) in the nuclear reactor; and a conductor (400) configured for all the lead wire (124) and the first and second jet mills (122a / 122c) to and from the instrument tube (50) in the nuclear reactor, the first jet mill and the second jet mill being configured for all substantially converted to a different subsidiary product when exposed to a neutron flood in a nuclear reactor in operation.
    [8]
    A method of producing isotopes in a nuclear reactor with a jet mill supply system, the method comprising: placing a first jet mill (122a) configured to substantially transform into a different subsidiary product when exposed to a neutron flux in a nuclear reactor operating in a grinding supply device (loo), the first jet grinding (122a) being located at a front end of a grinding part (120) 537 158 the grinding M supply device (loo), the first jet grinding (122a) carrying a spirit (125a) tapering towards the front second; placing a second jet template (122c) wherein the first jet template and the second jet template are configured to substantially transform into a different subsidiary product when exposed to a neutron flood in a nuclear reactor in operation behind the first jet template (122a), the second jet template ( 122c) does not taper; inserting the jet file supply device (loo) into an instrument tube (50) in a nuclear reactor; irradiation of the first and second beam targets (122a / 122c); removing the jet ore supply device (loo) from the nuclear reactor; and harvests of the first and second jet mills (122a / 122c).
    [9]
    The method of claim 8, wherein placing the first jet template (122a) in the jet template supply device (loo) comprises attaching the first jet template (122a) to a wire (124), pressing the wire (124) through a first conductor ( 400) and into the instrument tube (50) using a drive system (300). 16 537 158
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    US12/547,282|US9773577B2|2009-08-25|2009-08-25|Irradiation targets for isotope delivery systems|
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