• 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:
    APPARATUS AND METHOD FOR CONTROLLABLE PRODUCTION IN A WELL UNDER, IONIZING RADIATION WITHOUT THE USE OF RADIATIVE CHEMICAL ISOTOPES. Apparatus for the production in a controllable well bottom of ionizing radiation (12), the apparatus including at least one thermo-ionic emitter (11) which is arranged in a first end (7) of an electrically insulated vacuum container (9), and a Lepton target (6) which is arranged on a second end (7b) of the electrically insulated vacuum vessel (9; the thermo-ionic emitter (11) being connected to a series of serial connector elements of increasing negative electrical potential (141 , 142, 143, 144), each of these elements of increasing electrical potential (141,142,143,144), being arranged to increase an application of a direct current potential (dVO, DV1, VI +2, ..., DV1 + 2 +3 ), transforming an application of conduction voltage (VAC), and transmit the increase, the potential of negative direct current (DV1, DV1 2, ..., DV1 2 + 3 +4) and also the conduction voltage (VAC) for the next unit of a series of serial connected O elements (141,142,143,144,5), and ion radiation izing (12) greater than 200 keV with a predominant portion of the spectral distribution within the Compton range.
    公开号:BR112012002627B1
    申请号:R112012002627-5
    申请日:2010-10-20
    公开日:2020-11-17
    发明作者:Phil Teague
    申请人:Visuray Technology Ltd.；
    IPC主号:
    专利说明:

    [0001] An apparatus for the production of a controllable downhole, of ionizing radiation is described, more particularly characterized by the apparatus, including at least one thermionic emitter which is arranged in a first end of an electrically insulated vacuum vessel, and a target Lepton which is arranged at a second end of the electrically insulated vacuum vessel; the thermionic emitter being connected to a series of elements of serial connectors of increasing negative electrical potential, each of these elements of increasing electrical potential being organized to increase an application of a direct current potential, transforming an application, of conducting voltage, and transmitting the increase, the negative direct current potential and also the conduction voltage for the next unit of a series of elements connected in series, and the ionizing radiation greater than 200 keV with a predominant portion of the spectral distribution within the Compton range.
    [0002] In drilling wells and acquiring data for rock bottom material compositions, radioactive isotopes are used in large part today. With the knowledge of the State of the Art it was not possible to use non-radioactive systems capable of producing the photon energies necessary to replace the energy emitted from conventional radioactive isotopes used in exploration operations of wells and the like, that is, an apparatus which has X-ray / Gamma radiation greater than 200 keV and is arranged in a housing with a diameter of less than 4 "(101 mm). Currently, the largest diameter typically used in containers to accommodate recording equipment is in the order of 3 5/8 "(92 mm) or smaller.
    [0003] The emission rate, and therefore the intensity, of isotopes is a function of their radioactive properties in the half-life. To reduce the time required to record a statistically reliable amount of secondary photon detection, the isotope must have a correspondingly short half-life, possibly greater amounts of material must be used to increase production. This leads to a difficult balance between economy and security, and even a logging operation takes time, the higher the costs associated with infrastructure (such as drilling equipment in time) and / or lost production, and the shorter the time of operation The greater the risk attributed to the isotope used, the greater the safety precautions must be taken when handling the isotope.
    [0004] The invention aims to remedy or reduce at least one of the drawbacks of the State of the Art, or at least to provide a useful alternative to the prior art.
    [0005] The objective is achieved by the characteristics that are specified in the description below and in the claims that follow.
    [0006] Having the ability to produce high energy radiation in the form of "required" X-ray / Gamma radiation in a well bore or the like, without the use of highly radioactive chemical isotopes, which will be very advantageous within the oil and gas during density recording, recorded during drilling, measurements during drilling and during recording of well operations.
    [0007] In the following, the term "Lepton" is used, to:
    [0008] Lepton comes from the Greek ÀETTTÓV, which means "small" or "thin".
    [0009] In physics a particle is a Lepton if it has a 1/2 spin and does not experiment with color energy. Leptons form a family of elementary particles.
    [00010] There are 12 known types of Leptons, three of which are particles of matter (electron, muon and Tau Lepton), three neutrinos, and their respective six anti-particles. All known charged Leptons have a single negative or positive electrical charge (depending on whether they are particles or anti-particles, and all neutrinos and anti-neutrinos are electrically neutral. In general, the number of Leptons of the same type (electrons and neutrinos) electrons; muons and muon neutrinos, tau and neutrino tauons) remains the same when the particles interact, this is known as Lepton number conservation.
    [00011] Current controls, logistics, handling and safety measures associated with radioactive isotopes in the oil and gas industry imply high costs, and a system that does not require the use of radioactive substances, but, chemical isotopes, can produce equivalent radiation " required "that will eliminate many of the controls and logistics costs related to isotope handling.
    [00012] As a consequence most of the minute controls imposed on the use, storage and movement of highly radioactive isotopes are eliminated, chemical isotopes allow the introduction of anti-terrorism precautions, the security and logistics costs associated with the many thousands of isotopes of materials that are used on a daily basis within the industry have increased dramatically.
    [00013] The invention provides an apparatus and method that makes it possible to produce X-ray / Gamma radiation with spectral components within the Compton range with a radiant output by Leptons accelerated between two oppositely polarized electrodes of high electrical potentials, each electrode being maintained at a controllable potential by a system of stages of increasing electrical potential, the stages being arranged to allow very high voltages (above 100,000 V) being produced and controlled in an electrically isolated cavity, preferably cylindrical with a transverse dimension less than 4 "(101 mm). Consequently, the output of the system is many times greater than that of the Gamma emission of the isotope emitters, which results in a considerable reduction in the time required to record a satisfactory amount of data during operations of registration, so that both total time consumption and costs are reduced. The system does not use high isotopes radioactive, thus eliminating the need for handling, control and safety routines related to radioactive isotopes.
    [00014] The device is equipped with components arranged to generate ionizing radiation whenever necessary in a well-hole environment without the use of highly radioactive chemical isotopes, such as cobalt 60 or cesium 137, for example.
    [00015] The device includes the following main components:
    [00016] - A modular system for the production and control of high electrical potentials, both positive and negative, inside an isolated / grounded cavity, preferably cylindrical with a relatively small diameter.
    [00017] - A system to maintain the electrical separation of the high electrical potentials and the earth, which involves field control geometries, gaseous material under electrically insulating pressure and flow inhibition support geometries.
    [00018] - A system that uses the electric field formed in the dipole of electrical potentials to accelerate Leptons towards a Lepton target.
    [00019] - A target and Lepton flow geometry (beam) that results in the production of ionizing radiation in a rotationally symmetrical radial emission around the device's longitudinal axis.
    [00020] The invention relates more specifically to an apparatus for the production in a controllable downhole, of ionizing radiation, characterized by the apparatus, including: At least one thermionic emitter which is arranged in a first end of a first container electrically insulated vacuum, and a Lepton target that is arranged on a second end of the electrically insulated vacuum container; The thermionic emitter being connected to a series of serial connector elements of increasing negative electrical potential, Each of the said elements increasing electrical powers being arranged to increase an application of direct current potential, transforming an applied conduction voltage and transmitting the increased potential of negative current and also the conducting voltage for the next unit of a series of serial connector elements, and ionizing radiation being greater than 200 keV with a predominant portion of the spectral distribution within the Compton range.
    [00021] The vacuum container can be a vacuum tube. This gives a considerable reduction in the emission resistance in the vacuum vessel.
    [00022] The Lepton target can be formed in a rotationally symmetrical shape. This improves the distribution of radiation in all directions out of the device.
    [00023] The Lepton target can be formed in a conical shape. The advantage is that the random dispersion of thermionic emission will result in radiation distributed evenly over the entire circumference of the device.
    [00024] The Lepton target can substantially consist of a material, an alloy or a compound taken from the group consisting of tungsten, tantalum, hafnium, titanium, copper, molybdenum and also any non-radioactive isotope of an element that has a number greater than 55. This gives a greater degree of output within a favorable part of the radiation spectrum.
    [00025] The Lepton target can be connected to a series of serial connector elements of increasing positive electrical potential, each of these elements of increasing electrical potential being arranged to increase an application of a direct current potential, transforming an applied conduction voltage of high frequency, and transmitting the greatest potential of positive current and also dictates alternating voltage to the next unit of one of the series of the elements connected in series. This gives better control of the stress field geometry.
    [00026] The conduction voltage can be an alternating voltage with a frequency above 60 Hz. The energy supplied can thus be generated with lower capacity requirements for components of transport current.
    [00027] A spectrum protection filter can be arranged to eliminate some of the low energy radiation from the generated ionizing radiation. Filtration thus removes the noise from the radiation.
    [00028] A spectrum protection filter can be formed from a material, an alloy or a compound taken from the group consisting of copper, rhodium, silver, zirconium and aluminum. Radiation within a desired spectral region can thus be generated.
    [00029] In the Lepton target, a beam shield can be arranged, having one or more openings arranged to create controlled directional radiation. The radiation can therefore be controlled directionally, if desired.
    [00030] The device may include a housing, which is arranged to be pressurized with an insulating substance in gaseous form. This gives a reduction in the risk of sparks and electrical overload.
    [00031] The insulating substance can be sulfur hexa-fluoride Sulfur hexa-fluoride has very good insulating properties.
    [00032] The cavity can have a transverse dimension that does not exceed 101 mm (4 "). The device is thus suitable for all exploration environments at the bottom of the well.
    [00033] Each element of increasing electrical potential may include means arranged to apply an input potential equal to its own input potential for the next element of increasing electrical potential.
    [00034] The following is an example of a preferred embodiment that can be seen in the drawings that accompany this description, where it can be seen: Figure 1 shows a longitudinal section through a first modality of double polarity specimens of a according to the invention, a thermionic emitter and emitter and a Lepton target being connected to the respective series of elements of increasing electrical potential, and a graph showing the electrical potential for each stage of the series of increasing elements; Figure 2a shows a typical spectrum emitted by a chemical isotope of cesium 137; Figure 2b shows a typical output of the apparatus according to the invention, when a current potential of -350,000 V is applied to a thermionic emitter and a current potential of +350,000 V is applied to a Lepton target; Figure 2c shows the result of the same composition as that of figure 2b, but a pure copper spectrum filter being used; Figure 2d shows the effect of a spectrum filter made of a compound of copper, rhodium and zirconium; Figure 3 shows, on a larger scale than figure 1, a section of a longitudinal section of a variant of the apparatus according to the invention, a shield with a beam opening of controlled directional radiation creating being organized throughout the target Lepton; Figure 4 shows a longitudinal section through a single incarnation of polarity according to an example of an apparatus according to the invention, in which a thermionic emitter is connected to a series of increasing electro-potential elements and generates ionizing radiation in a radial direction a from a conical Lepton target earth in a grounded vacuum container and Figure 5 shows a longitudinal section through a single polarity incarnation of one third of an apparatus according to the invention, in which a thermionic emitter is connected to a series of electro - Potential increasing elements and generates ionizing radiation in an axial direction out of a Lepton target in a grounded vacuum container.
    [00035] In the figures, reference number 1 indicates the fluid closure / staking cavity, cylindrical with an outside diameter that does not exceed 4 "(101 mm). The cavity is rotationally symmetrical about a longitudinal axis and is designed be electrically grounded / isolated The cavity is preferably arranged to be pressurized with an insulating substance 15 in gaseous form, such as sulfur hexa-fluoride A thermionic emitter 6, and a Lepton target, are arranged in a cylindrical vacuum vessel 9, which is provided with two electrically insulated caps 7a, 7b forming closed ends of a tube 7c which is electrically connected to the surrounding box 1, with said container 9 thus forming an electrically grounded support structure, as well as an electric field tube focused.
    [00036] In the preferred mode, no detector system is included in the apparatus in order to assist in the acquisition of data during the recording operation, but if desired, shielded photon detectors, such as sodium iodide or iodide based detector systems cesium or any other type of detector or detectors, can be placed around the empty perimeter of the cylindrical container 9 placed inside the outer diameter of the cylindrical grounded housing 1 with no consequence with regard to the high potential field influence in electronic systems detectors.
    [00037] In the preferred mode, Leptons 8 are produced with the thermionic emitter 11, but a radio frequency and cold cathode methods can also be used.
    [00038] The thermionic emitter 11 is kept warm and at a high negative electrical potential in relation to the grounded housing 1, by means of a series connector system of two or more elements of increasing negative electrical potential 14i-n, four 14I- 14A shown in the figures. The initial increment element 14i that provides the first potential increase within the system connected in series being powered by an electrical control 2, which is supplied with direct or alternating current typically between 3 and 400 V supplied by a remote power supply (not shown).
    [00039] Control 2 provides a VAC alternating voltage controlled at a frequency above 60 Hz, preferably up to 65 kHz or more, and the elements of increasing negative electrical potential 14I-144 are configured in such a way that a system of coils of transformers within each stage are used to increase a negative potential δVi, δVi + 2, δV-i + 2 + 3, δVi + 2 + 3 + 4 of the alternating current in relation to the current earth potential around box 1, of so the series of elements of negative electrical potential 14I-144 increases the electrical potential in intervals to an overall level above -100,000 V.
    [00040] Each element of increasing negative electrical potential 14- 144 is centrally organized and supported within the electrically grounded housing 1 by a rotationally symmetrical support structure 3 made of a material or composite of materials with high dielectric resistivity and good thermal conductivity. In a preferred embodiment a mixture of poly-acryl-ether-etherketone and boron nitrite is used, but any material with a high dielectric resistivity can be used. The rotationally symmetrical support structure 3 is configured in such a way that the distance that the electric energy will have to cover along the surface, or through the material of the support structure 3 of the elements of increasing negative electric potential 14I-144 up to around the grounded frame 1 is much greater than the radial physical distance between the elements of increasing negative electrical potential 14I-144 and frame 1, so that electrical interactions or electrical sparks between conductors with large voltage differences are inhibited. To ensure that the distribution of electrical potential across the surface of the elements of increasing negative electrical potential 14I-144 is maintained continuously, to thereby prevent possible disturbances that could lead to sparks or electrical interactions, a cylindrical field controller 4 is arranged outside each element of increasing negative electrical potential 14I-144 to ensure that the potential radiates between each of the elements of increasing negative electrical potential 14I-144 θ the surrounding housing 1 remains constant throughout the axial extension of the elements of increasing negative electric potential 14I-144, forming a homogeneous field pointing towards the ground, regardless of the electrical potential ÕVi, ÕVi + 2, δV-i + 2 + 3, δV-i + 2 + 3 + 4 of the specific element of electric potential increasing negative 14I-144. Rather than using just a single stage of the elements of increasing negative electrical potential, the use of multiple stages of elements of increasing negative electrical potential 14i-144 ensures that the total electrical potential between each end of a stage can be reduced to a minimum potential controllable by step (see the potential difference graph in figure 1) to thus ensure that potential differences between components or across each stage do not result in sparks or electrical interactions because of short distances, which is normally used in electric circuits.
    [00041] The output power from electrical control 2 can be increased or decreased to thereby control the magnitude of the output of negative electrical potential elements by increasing 14I-144. However, any other arrangement in which each stage of the system may include devices to increase the full potential can be provided within the scope of the invention. For example, diode / capacitor based voltage multiplier or a series half wave multiplier or a Greinacher / Villard system can be used in such a system.
    [00042] A thermionic emitter controller 5 rectifies the high potential alternating current to deliver a high current rectified voltage to the thermionic emitter 11. A current to control the thermionic emitter 11 and keep the thermionic emitter 11 at a potential difference of more than -100,000 V is thus supplied. As the AC voltage differential remains unchanged at each stage of the system of the elements of increasing negative electrical potential connected in series 14I-144, only the DC component is changed.
    [00043] In a preferred embodiment, each coil of the transformer is arranged in such a way that a tertiary winding of a ratio of 1: 1 to a primary winding is inductively coupled so that a failure of a component of any phase will not go result in output failure in the production of the high potential on the system of the elements connected in series as the alternating current component will be transported through the next element of increasing negative electrical potential 14 regardless of whether the level of the direct voltage has been elevated or not.
    [00044] The controller of the thermionic emitter 5 can be powered by electricity from the rectified alternating current component from the output of the elements of increasing negative electrical potential 14-1-144. the thermionic emitter controller 5 and a negative electrical control controller 2a communicate wirelessly to ensure that the output of elements with increasing negative electrical potential 14I-144 can be verified without the need for wire instrumentation between the two controllers 2a, 5. In the preferred mode, radio communication is used, with an antenna arranged on the thermionic emitter controller 5 and on the negative control electrical controller 2a, but a direct beam of laser light can also be used through an alignment of optical windows or openings in series doses elements of increasing negative electrical potential 14I-144.
    [00045] Likewise, a system connected in series of increments of positive potential 17I-1 4 similar in function to that of the elements of increasing negative electric potential 14i-144 is arranged. They are arranged in such a way that the output is connected to a Lepton target 6 via a Lepton target controller 16 so that each step gradually increases the potential to provide a high positive electrical potential ôVi + 2 +3 +4 from the output of the connected elements in series of the system of elements of increasing positive potential 17i-174. The Lepton target controller 16 rectifies the alternating positive current from the output of the elements of the increasing positive electrical potential 17i-174, keeping the Lepton target 6 at a potential difference greater than 100,000 V.
    [00046] The Lepton target controller 16 and a positive electrical control controller 2b communicate wirelessly to ensure that the output of the elements of increasing positive electrical potential 17- 174 can be verified without any need for cable instrumentation between the two controllers 2b, 16. In the preferred realization radio communication is used, with an antenna arranged in the Lepton target controller 16 and another in the positive electrical control controller 2b, however a direct beam of laser light can also be used via an alignment of optical windows or openings in the series of elements of positive electrical potential increasing 17i-174-
    [00047] Leptons 8, which are accelerated within the strong electric dipole field created by the high negative potential of the thermionic emitter 11 and the high positive potential of the Lepton target 6 flow continuously through the vacuum 10 of the container 9 and collide with the Lepton target 6 with a high speed. The kinetic energy of Leptons 8, which is increased by the acceleration in the electric field generated between the thermionic emitter 11 and the Lepton 6 target, is released as ionizing radiation 12 in the collision with the Lepton 6 target because of the sudden loss of kinetic energy. As the Lepton 6 target maintains its high positive potential, Leptons 8 are electrically transported away from the Lepton 6 target via the increasing positive potential for elements 17 and the positive control controller 2b.
    [00048] In a preferred embodiment, the Lepton 6 target is a conical structure formed of tungsten, but alloys and composites of tungsten, tantalum, molybdenum, hafnium, titanium and copper can be used in addition to any non-radioactive isotope of a element with a high atomic number (greater than 55). The Lepton 6 target can also be formed in any rotationally symmetrical shape, such as a circular or hyperboloid cylinder or any variant exhibiting rotational symmetry. The Leptons 8's natural tendency to diverge in transit (deviate) between the thermionic emitter 11 and the Lepton 6 target that results in a Leptons 8 collision area on the Lepton 6 target forming an annular field around the apex of the conical body . The primary result of ionizing radiation 12, which is partially shaded by the Lepton target 6 is generally spread with an oblate spheroid-like distribution. The effect is that ionizing radiation 12 is directed in all directions with symmetry of rotation around the longitudinal axis of the apparatus, so as to illuminate all the surrounding substrate or the drilling structures simultaneously. The maximum output energy of ionizing radiation 12 is directly proportional to the potential difference between the thermionic emitter 11 and the Lepton 6 target. If the thermionic emitter 11 has a potential of -331,000 V and is coupled with a Lepton 6 target with a potential of -331,000 V, this will give a potential difference of 662 thousand V between the thermionic emitter 11 and the target Lepton 6, which gives an energy peak resulting from ionizing radiation 12 in the order of 662 thousand eV, corresponding to the energy main output of cesium 137 which is commonly used in geological density in logging operations. The thermal energy generated by the interaction of Leptons 8 with the target Lepton 6 is conducted to the electrically surrounding grounded housing 1, by means of an electrically conductive non-conductive heat structure 13 geometrically and functionally similar to the rotationally symmetrical support structures 4, although , in a preferred embodiment, boron nitride is used in a higher volume percentage to provide greater efficiency in conducting heat.
    [00049] The potentials of the thermionic emitter 11 and the Lepton 6 target can be varied, individually, either intentionally or because of a stage failure. The total difference between the potential of the thermionic emitter 11 and the target Lepton 6 remains the sum of the two potentials. In the preferred mode, the device was configured with a double polarity, as described here, but the device can also operate in a single polarity mode, where the Lepton 6 target has an electrical ground potential by connection with the surrounding cylindrical box 1, and the Lepton 6 target has a configuration, which can control the output radiation substantially in the axial or radial direction of the device, as shown in figures 4 and 5.
    [00050] To better simulate the output spectrum normally associated with chemical isotopes, a cylindrical filter of spectrum shield 18, which involves the radial output of the Lepton 6 target can be used (see figure 3). In a preferred embodiment, a copper and rhodium 18 spectrum shielding filter is used, but any material that filters ionizing radiation, or compounds thereof, can be used, such as copper, rhodium, silver, zirconium and aluminum. The spectrum 18 shielding filter has the effect of removing the low-energy radiation and characteristic spectra associated with the radiation output from the Lepton 6 active, which increases the average energy of the entire emission spectrum for greater photon energy, see the graphs in figures 2a-2d. A combination of several filters 18 can also be used.
    [00051] In a preferred embodiment, the 18 spectrum shielding filter is arranged in such a way that it can be moved in and out of the radiation to thus obtain a variable spectrum filtration effect. A fixed filter or a fixed combination of several filters can also be used.
    [00052] Where it is desirable to obtain controlled directional emission from the Lepton 6 target, a rotating beam or a cylindrical fixed shield 20 with one or more openings can be arranged around the exit of the Lepton 6 target, resulting in radiation controlled directional switch 19 (see figure 3).
    [00053] The apparatus and method provide ionizing radiation as a function of the electrical potential that is applied to the system. Consequently, the system output is often greater than that achieved with the use of isotopes, resulting in the time required to record an adequate amount of data during a registration operation to be reduced considerably, which reduces the consumption of time and costs.
    [00054] As the input potential of the system can be changed, which results in a possibility to increase or decrease the energy of primary radiation, correspondingly, the same system can replace a wide variety of chemical isotopes, each having an output of energy of the specific photon, simply because the applied energy can be adjusted to the particular need for radiation.
    [00055] The results of the modular system with electric potential to increase energy at a low current voltage can be supplied to the device in the well as a high voltage necessary for the generation of ionizing radiation that is emitted and controlled inside the device.
    [00056] The system does not use radioactive chemical isotopes such as cobalt 60 or cesium 137, for example, and this eliminates all the inconveniences associated with the control, logistics, environmental measures and safety measures required when handling radioactive isotopes.
    [00057] In addition, drilling technology requires the placement of radioactive substances, chemical isotopes into the bottom of a set of holes that makes them as easily recoverable as possible from the drill string in the case of bottom mounting that is lost during the drilling operation. For this reason, the isotope may have to be placed within 50 meters of the drill bit at a point where the drill string is attached to the bottom of the hole assembly. An apparatus that does not contain radioactive substances and, consequently, can be abandoned, does not have to be positioned aiming and its recovery. Consequently, the radiation emission device, and thus the detection system, can be placed closer to the drill bit for better real-time feedback from the well.
    [00058] A variable radiation source also has the advantage of allowing multiple logging operations at different energy levels without having to be removed from the well for readjustment, which provides a greater amount of data available to the operator in a short space of time. of time.
    权利要求:
    Claims (12)
    [0001]
    1. Apparatus for the production of controllable downhole from ionizing radiation (12), in which the apparatus includes: a fluid-tight cylindrical housing (1) arranged to be electrically grounded; an electrically insulated vacuum container (9) suspended within the housing (1); at least one thermionic emitter (11) which is arranged in a first end portion (7a) of the electrically insulated vacuum container (9), the thermionic emitter (11) being configured to generate Leptons (8) and a Lepton target (6) which is arranged on a second end (7b) of the electrically isolated vacuum container (9) characterized by the fact that: the thermionic emitter (11) is connected to a series of elements of negative increasing electrical potential connected in series ( 14i, 142, 143J 144), and each of these elements of increasing electrical potential (14i, 142, 143, 144), being willing to increase an applied direct current potential (δVo, δVi, δVi + 2, ..., δV-i + 2 + 3) transforming an applied conduction voltage (VAC), and transmitting the applied direct current potential (δVi, δVi + 2, ..., δV-i + 2 + 3 + 4) and also the conduction voltage (VAC) for the next unit in the series of elements connected in series (142, 143, 144, 5), and ionizing radiation (12) exceeds 200 keV with a predominant portion of the spectral distribution within the Compton range, in which each element of increasing negative electrical potential (14-1-144) is centrally disposed and supported within the electrically grounded housing (1) by a rotationally symmetrical support structure (3) made of a material or composite of materials with high dielectric resistivity and good thermal conductivity, in which the rotationally symmetrical support structure (3) is configured so that the distance that the electrical energy will have to travel along the surface of the support structure (3) from the elements of increasing negative electrical potential (14I-144) to the surrounding grounded housing (1) is much greater than the physical radial distance between the elements of increasing negative electrical potential (14I-144) and the housing (1), so that electrical interactions or sparks between conductors with large voltage differences are inhibited, and in which a field controller ci cylindrical (4) is arranged outside each element of increasing electrical potential (1 4I-144) to ensure that the radial potential between each of the elements of increasing electrical potential (14I-144) and the surrounding housing (1) remains constant along the entire axial extension of the element of increasing electrical potential (14I-144), so as to form a homogeneous field towards the ground regardless of the electrical potential (δVi, δV-1 + 2, δVi + 2 + 3, δVi + 2 + 3 + 4) of the specific increasing electrical potential element (14I-144).
    [0002]
    2. Apparatus according to claim 1, characterized by the fact that the Lepton target (6) is formed in a rotationally symmetrical shape.
    [0003]
    3. Apparatus, according to claim 2, characterized by the fact that the Lepton target (6) is formed in a conical shape.
    [0004]
    4. Apparatus according to claim 1, characterized in that the Lepton target (6) is provided substantially by a material, an alloy or a composite taken from the group consisting of tungsten, tantalum, hafnium, titanium, molybdenum, copper and also any non-radioactive isotope of an element that exhibits an atomic number greater than 55.
    [0005]
    5. Apparatus, according to claim 1, characterized by the fact that the Lepton target (6) is connected to a series of elements of positive increasing electrical potential connected in series (17i, 172, 173,174), and each of those referred to elements of increasing electrical potential (17i, 172, 173, 174) are arranged to increase an applied direct current potential (δVo, δVi, δVi + 2, ..., δVi + 2 + 3) by transforming the high conduction voltage frequency (VAC), θ transmit the increased positive DC potential (δVi, δVi + 2, ..., δVi + 2 + 3 + 4) and also the driving voltage (VAC) for the next unit in the series of elements connected in series (17i, 172, 173, 174, 16).
    [0006]
    6. Apparatus, according to claim 1, characterized by the fact that the conduction voltage (VAC) is a high frequency alternating current with a frequency above 60 Hz.
    [0007]
    7. Apparatus according to claim 1, characterized by the fact that a protective spectrum filter (18) is arranged to eliminate a portion of low energy radiation from the generated ionizing radiation (12).
    [0008]
    8. Apparatus according to claim 7, characterized by the fact that the protection spectrum filter (18) is formed from a material, an alloy or a compound or multiple materials that can be actuated to provide variable filtration of said materials taken from the group consisting of copper, rhodium, silver, zirconium and aluminum.
    [0009]
    9. Apparatus according to claim 1, characterized by the fact that in the Lepton target (6) a beam shield (20) is arranged, with one or more openings arranged to create controlled directional radiation (19).
    [0010]
    10. Apparatus according to claim 1, characterized by the fact that the housing (1) is arranged to be pressurized with an electrically insulating substance (15) in gaseous form.
    [0011]
    11. Apparatus according to claim 10, characterized by the fact that the electrically insulating substance (15) is sulfur hexa-fluoride.
    [0012]
    12. Apparatus according to claim 10, characterized by the fact that the housing (1) has a transverse dimension that does not exceed 101 mm (4 ").
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    法律状态:
    2017-10-10| B25A| Requested transfer of rights approved|Owner name: VISURAY TECHNOLOGY LTD. (NO) |
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-07-16| B06T| Formal requirements before examination|
    2019-11-05| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2020-07-14| B09A| Decision: intention to grant|
    2020-11-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 17/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    NO20093204|2009-10-23|
    NO20093204A|NO330708B1|2009-10-23|2009-10-23|Apparatus and method for controlled downhole production of ionizing radiation without the use of radioactive chemical isotopes|
    PCT/NO2010/000372|WO2011049463A1|2009-10-23|2010-10-20|Apparatus and method for controllable downhole production of ionizing radiation without the use of radioactive chemical isotopes|
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