WO2014203589A1 - 放射線検出モジュール及び放射線検出ユニット - Google Patents
放射線検出モジュール及び放射線検出ユニット Download PDFInfo
- Publication number
- WO2014203589A1 WO2014203589A1 PCT/JP2014/059440 JP2014059440W WO2014203589A1 WO 2014203589 A1 WO2014203589 A1 WO 2014203589A1 JP 2014059440 W JP2014059440 W JP 2014059440W WO 2014203589 A1 WO2014203589 A1 WO 2014203589A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiation detection
- processing unit
- radiation
- detection module
- detection unit
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 114
- 230000005855 radiation Effects 0.000 title claims abstract description 74
- 239000000758 substrate Substances 0.000 claims description 41
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- 230000017525 heat dissipation Effects 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000002591 computed tomography Methods 0.000 description 15
- 239000004065 semiconductor Substances 0.000 description 13
- 239000013078 crystal Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910004613 CdTe Inorganic materials 0.000 description 1
- 229910004611 CdZnTe Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2018—Scintillation-photodiode combinations
- G01T1/20182—Modular detectors, e.g. tiled scintillators or tiled photodiodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
Definitions
- the present invention relates to a radiation detection module and a radiation detection unit.
- Patent Document 1 describes a detector module that detects X-rays.
- the detector module includes a plurality of semiconductor detectors and a metal block to which the plurality of semiconductor detectors are attached. Each semiconductor detector has a scintillation crystal and a photodiode.
- Patent Document 1 describes a detector assembly including a plurality of the detector modules described above.
- the detector assembly includes a plurality of detector modules as described above, and an arcuate reference support spine along the channel direction.
- a plurality of detector modules are attached to the reference support spine along the channel direction.
- a processing unit that processes a signal from a detection unit that detects radiation generates heat during use. If the temperature of the radiation detection module fluctuates due to heat generation, the radiation detection accuracy may be reduced. Therefore, it is desired to improve the heat dissipation performance in the radiation detection module and the radiation detection unit.
- the present invention has been made to solve such a problem, and an object of the present invention is to provide a radiation detection module and a radiation detection unit that can improve heat dissipation performance.
- a radiation detection module is a radiation detection module for a CT apparatus that detects radiation, and includes a detection unit that detects radiation, a processing unit that processes a signal from the detection unit, a processing unit, and a heat And a heat radiating member that dissipates heat from the processing unit, and the heat radiating member has a plurality of fins, and the plurality of fins in the first direction along the slice direction of the CT apparatus, The fins are spaced apart from each other, and each of the plurality of fins has a plate shape that extends so as to intersect the first direction.
- the plurality of fins provided on the heat dissipation member are separated from each other in the first direction along the slice direction of the CT apparatus (that is, the direction orthogonal to the rotation direction of the gantry of the CT apparatus). For this reason, when the gantry is rotated, an air flow path is generated between adjacent fins. Therefore, the heat dissipation performance can be improved.
- Each of the plurality of fins has a plate shape that spreads so as to intersect the first direction along the slice direction (that is, a plate shape that spreads so as not to be orthogonal to the rotation direction of the gantry).
- each of the plurality of fins has a plate shape that extends so as to be orthogonal to the rotation direction of the gantry. it can. Therefore, the power required to rotate the gantry can be reduced.
- a high thermal conductive resin that thermally couples the processing unit and the heat radiating member may be disposed between the processing unit and the heat radiating member.
- the heat generated in the processing unit is suitably transmitted to the heat radiating member by the high thermal conductive resin. Therefore, the heat dissipation performance can be further improved.
- the radiation detection module further includes a substrate that supports the detection unit and the processing unit, and the heat dissipation member includes a coupling unit that is thermally coupled to the processing unit via a high thermal conductive resin, and a fixing unit that is fixed to the substrate.
- the fixing portion protrudes toward the substrate side with respect to the coupling portion, and the processing portion and the high thermal conductive resin are arranged in a gap between the substrate and the coupling portion formed by the fixing portion. May be. In this case, thermal coupling and mechanical fixation can be realized with a simple structure.
- the detection unit may include a scintillator that emits scintillation light according to incident radiation, and a detection element that detects scintillation light from the scintillator.
- the light emission amount of the scintillator changes depending on the temperature of the scintillator. According to the said structure, it can suppress that the heat which generate
- a radiation detection unit is a radiation detection unit for a CT apparatus including a plurality of the above-described radiation detection modules, and extends along a first direction, and a plurality of heat radiation members extends in the first direction.
- Each of the heat dissipating members is attached to the frame via a bar-like member so as to be separated from the frame.
- the heat dissipation performance can be improved and the power required to rotate the gantry can be reduced.
- the heat radiating member of each radiation detection module is attached to the frame via a support member so as to be separated from the frame. Therefore, the dimensional error and assembly error of each element can be absorbed by the gap between the heat radiating member and the frame while aligning the positions of the incident surfaces among the plurality of radiation detection modules. Therefore, the positions of the incident surfaces can be made uniform among the plurality of radiation detection modules, and the position accuracy can be improved.
- the present invention it is possible to provide a radiation detection module and a radiation detection unit that can improve heat dissipation performance.
- FIG. 1 is a schematic diagram illustrating a CT apparatus including a plurality of radiation detection units according to the embodiment.
- FIG. 2 is a perspective view showing the radiation detection unit in FIG.
- FIG. 3 is a side view showing the radiation detection module in FIG. 4 is a view taken in the direction of arrows IV-IV in FIG.
- FIG. 5 is a perspective view showing the heat dissipating member in FIG. 4.
- FIG. 1 is a schematic diagram illustrating a CT apparatus including a plurality of radiation detection units according to the embodiment.
- a CT (Computed Tomography) apparatus 1 irradiates a subject H with radiation (for example, X-rays or ⁇ rays) from a radiation source (not shown).
- the transmitted radiation is detected by a plurality of detection modules (radiation detection modules) 2.
- the plurality of detection modules 2 are fixed to a rotation mechanism (gantry) (not shown).
- the plurality of detection modules 2 rotate along the rotation direction (channel direction) C of the gantry and linearly move along the slice direction (body axis direction) S.
- a plurality of detection modules 2 are arranged along each of the channel direction C and the slice direction S.
- the detection unit (radiation detection unit) 3 includes a plurality of detection modules 2 arranged along the slice direction S.
- FIG. 2 is a perspective view showing the radiation detection unit in FIG.
- the direction along the slice direction S is the first direction D1
- the direction along the tangent to the channel direction C is the second direction D2
- the incident surface 51a of the detection module 2 is the third direction D3.
- the detection unit 3 includes the plurality of detection modules 2 and the frame 4.
- the frame 4 extends along the first direction D1.
- the frame 4 includes a support portion 41 that extends along the first direction D1, and frame-side abutting portions 42 and 42 that are respectively positioned at both ends of the support portion 41 in the first direction D1.
- the support part 41 has a long plate shape.
- the frame-side abutting portion 42 has a rectangular parallelepiped shape and protrudes from one surface of the support portion 41.
- the frame side abutting portion 42 is provided with a through hole 43.
- the plurality of detection modules 2 are attached to the support portion 41 along the first direction D1.
- the detection module 2 is attached to one surface of the support portion 41 so as to be separated (see FIGS. 3 and 4, details will be described later).
- [Radiation detection module] 3 is a side view showing the radiation detection module in FIG. 2, and FIG. 4 is a view taken in the direction of arrows IV-IV in FIG.
- the detection module 2 includes a detection unit 5, a support substrate 6, a processing unit 7, and a heat dissipation member 8.
- the detection unit 5 includes a scintillator 51 and a photodiode array (detection element) 52.
- the scintillator 51 has a rectangular plate shape (specifically, a rectangular plate shape) (see FIG. 2).
- the scintillator 51 extends along the first direction D1 and the second direction D2.
- the scintillator 51 includes an incident surface 51a on which radiation is incident and an exit surface 51b that is located on the opposite side of the incident surface 51a and emits scintillation light in accordance with the incident radiation.
- Each of the entrance surface 51a and the exit surface 51b extends along the first direction D1 and the second direction D2.
- the scintillator 51 is, for example, CsI doped with Tl.
- CsI has a structure in which a large number of needle-like crystals (columnar crystals) are forested.
- the photodiode array 52 detects scintillation light from the scintillator 51.
- the photodiode array 52 includes a plurality of photodiodes and a semiconductor substrate 53 including a plurality of photodiodes.
- the semiconductor substrate 53 has a rectangular plate shape that is substantially the same as or slightly larger than the scintillator 51 when viewed from the third direction D3.
- the semiconductor substrate 53 extends along the first direction D1 and the second direction D2.
- the plurality of photodiodes are arranged two-dimensionally on the semiconductor substrate 53.
- the semiconductor substrate 53 includes a first surface 53a on which the scintillation light from the scintillator 51 is incident, and a second surface 53b located on the opposite side of the first surface 53a. Each of the first surface 53a and the second surface 53b extends along the first direction D1 and the second direction D2.
- the scintillator 51 is located on the first surface 53a.
- the semiconductor substrate 53 is made of, for example, silicon.
- the photodiode array 52 is, for example, a back-illuminated type, and its photosensitive region is located on the second surface 53b side.
- the photodiode array 52 may be a front-illuminated type, and the photosensitive region may be located on the first surface 53a side.
- the photodiode array 52 and a land electrode (described later) of the support substrate 6 may be connected via a through electrode formed inside the semiconductor substrate 53, and a wire It may be connected by bonding.
- the photodiode array 52 is coupled to the emission surface 51b of the scintillator 51 via an optical coupling agent that is optically transparent to the scintillation light from the scintillator 51.
- the photodiode array 52 has sensitivity in, for example, the ultraviolet region to the near infrared region.
- the portions exposed in the first direction D1 and the second direction D2 orthogonal to the third direction are side portions 5a.
- the support substrate 6 supports the detection unit 5 and the processing unit 7.
- the support substrate 6 has a rectangular plate shape substantially the same as that of the semiconductor substrate 53 when viewed from the third direction D3.
- the support substrate 6 extends along the first direction D1 and the second direction D2.
- the support substrate 6 has a first surface 6 a that supports the detection unit 5, and a second surface 6 b that is located on the opposite side of the first surface 6 a and supports the processing unit 7.
- Each of the first surface 6a and the second surface 6b extends along the first direction D1 and the second direction D2.
- a portion exposed in the first direction D1 and the second direction D2 portion along the third direction D3 is a side portion 6c.
- the support substrate 6 and the semiconductor substrate 53 are integrated.
- Land electrodes are formed on each of the first surface 6 a and the second surface 6 b of the support substrate 6.
- a photodiode on the semiconductor substrate 53 is connected to the land electrode on the first surface 6a via a bump electrode.
- the processing unit 7 is connected to the land electrode on the second surface 6b via a bump electrode.
- a conductor pattern for connecting the land electrodes on the first surface 6a and the second surface 6b to each other is formed inside the support substrate 6, a conductor pattern for connecting the land electrodes on the first surface 6a and the second surface 6b to each other is formed.
- the support substrate 6 is formed, for example, by laminating a plurality of green sheets containing ceramic and firing the laminate.
- the support substrate 6 may be formed of an organic material (for example, a glass epoxy resin).
- the processing unit 7 processes a signal from the photodiode array 52. As shown in FIG. 4, a plurality of processing units 7 are provided here.
- the processing unit 7 has a rectangular plate shape (specifically, a rectangular plate shape) smaller than the support substrate 6 when viewed from the third direction D3.
- the plurality of processing units 7 and 7 are separated from each other in the first direction D1.
- the processing unit 7 is, for example, an ASIC (Application specific integrated circuit).
- FIG. 5 is a perspective view showing the heat dissipating member in FIG. 4.
- the heat radiating member 8 includes a plurality of fins 81.
- the cross section of the heat dissipation member 8 along the first direction D1 and the third direction D3 has a substantially comb shape (see FIG. 4).
- the portion connecting the plurality of comb teeth is the base 82, and the comb teeth are the fins 81.
- the heat radiating member 8 is smaller than the support substrate 6 and has a substantially U-shape (see FIG. 5).
- a material for forming the heat radiating member 8 for example, Al, Cu, brass, or the like can be used.
- the base 82 has a substantially plate shape.
- the base 82 extends along the first direction D1 and the second direction D2.
- the processing units 7 and 7 are thermally coupled to the base 82.
- a central portion in the first direction D1 protrudes toward the processing portion 7 with respect to both end portions.
- the protruding part is a coupling part 83 to which the processing parts 7 and 7 are coupled.
- a pair of fixing portions 84, 84 protrude from the coupling portion 83 toward the support substrate 6.
- the fixing portion 84 has a substantially rectangular parallelepiped shape and extends along the first direction D1.
- the pair of fixing portions 84 and 84 are separated from each other in the second direction D2, and are positioned at both ends of the coupling portion 83 in the second direction D2.
- the protrusion height of the fixing portion 84 is larger than the thickness of the processing portion 7.
- the fixing portion 84 is fixed to the second surface 6b of the support substrate 6 with a resin (first resin) R1.
- the resin R1 for example, an epoxy resin adhesive or the like can be used.
- the processing portions 7 and 7 are arranged in the gap between the support substrate 6 formed by the fixing portions 84 and 84 and the coupling portion 83.
- the coupling portion 83 is provided with a plurality of through holes 85 and 85 corresponding to the number of the processing portions 7.
- the through holes 85 and 85 are separated from each other in the first direction D1.
- the through hole 85 is provided between the pair of opposing fins 81, 81 in the first direction D1.
- the through hole 85 overlaps the processing unit 7 when viewed from the third direction D3.
- a resin (second resin) R2 is sandwiched.
- a high thermal conductivity resin for example, a silicone resin
- a high thermal conductivity resin having a higher thermal conductivity than the resin R1 can be used.
- Resin R2 can be arrange
- the fin 81 protrudes from the base 82 along the third direction D3 to the side opposite to the processing unit 7 side.
- the fins 81 have a plate shape that expands so as to intersect the first direction D1. More specifically, the fin 81 has a plate shape that expands so as to be substantially orthogonal to the first direction D1. In other words, the fin 81 has a plate shape extending along the second direction D2 and the third direction D3.
- a connecting portion 86 that connects the pair of opposing fins 81 and 81 is provided in a part of the gap between the pair of opposing fins 81 and 81 (see FIG. 5).
- a plurality (more specifically, two) of the connecting portions 86 are provided along the first direction D1.
- the connecting portion 86 is provided in a gap at a position overlapping the processing portion 7 when viewed from the third direction D3.
- the connecting portions 86 and 86 are arranged symmetrically with respect to the center portion of the detection module 2 in the first direction D1.
- the connecting portions 86, 86 are provided outside the through holes 85, 85 for inserting the resin R2 in the first direction D1.
- the distal end portion (the lower end portion in FIGS. 3 and 4) of the connecting portion 86 protrudes from the distal end portion of the fin 81.
- the distal end portion of the connecting portion 86 is located on the opposite side of the incident surface 51a in the detection module 2, and functions as the attaching portion 86a.
- the through-hole 87 is provided in the connection part 86 along the 3rd direction D3.
- the portion on the base portion 82 side has a larger diameter than the portion on the attachment portion 86a side.
- a female screw is formed in a portion of the through hole 87 on the mounting portion 86a side.
- FFC FlexibleFFFlat Cable
- the detection module 2 as described above and the frame 4 are attached via a bar-shaped support pin (bar-shaped member) FP.
- a bar-shaped support pin bar-shaped member
- a through hole 44 is provided at a position corresponding to the through hole 87 of the heat dissipation member 8.
- a male screw is formed on the support pin FP.
- the support pin FP passes through the through hole 44 of the support portion 41 and is screwed into the through hole 87 of the heat dissipation member 8.
- a gap g exists between the support portion 41 and the connecting portion 86.
- An adhesive is used for fixing the detection module 2 and the frame 4.
- the adhesive for example, the above resin R1 can be used.
- the resin R ⁇ b> 1 is inserted into the through hole 87. Note that a gap may be formed between the resin R1 and the resin R2.
- Resin R ⁇ b> 1 adheres between the distal end portion of the coupling portion 86 and the support portion 41 so as to cover the support pin FP. A portion (head) protruding from the support portion 41 in the support pin FP is covered with the resin R1.
- the plurality of fins 81 provided on the heat dissipation member 8 are along the slice direction S of the CT apparatus 1 (that is, the direction orthogonal to the rotation direction C of the gantry of the CT apparatus). They are separated from each other in the first direction D1. For this reason, when the gantry is rotated, an air flow path is generated between the adjacent fins 81 and 81. Therefore, the heat dissipation performance can be improved.
- each of the plurality of fins 81 has a plate shape that extends so as to intersect the first direction D ⁇ b> 1 along the slice direction S (that is, a plate shape that extends so as not to be orthogonal to the rotation direction C of the gantry). Yes. For this reason, the air resistance when rotating the gantry as compared with the case where the air flow path is generated and each of the plurality of fins 81 has a plate shape extending so as to be orthogonal to the rotation direction C of the gantry, for example. Can be reduced. Therefore, the power required to rotate the gantry can be reduced.
- a resin R ⁇ b> 2 that is a highly thermally conductive resin that thermally couples the processing unit 7 and the heat radiating member 8 is disposed between the processing unit 7 and the heat radiating member 8. For this reason, the heat generated in the processing unit 7 is suitably transmitted to the heat dissipation member 8 by the resin R2. Therefore, the heat dissipation performance can be further improved.
- the detection module 2 includes a support substrate 6 that supports the detection unit 5 and the processing unit 7, and the heat dissipation member 8 includes a coupling unit 83 that is thermally coupled to the processing unit 7 through the resin R ⁇ b> 2, and the support substrate 6.
- a fixed portion 84 which protrudes toward the support substrate 6 with respect to the coupling portion 83, and is formed between the support substrate 6 and the coupling portion 83 formed by the fixed portion 84.
- the processing unit 7 and the resin R2 are disposed in the gap therebetween. For this reason, thermal coupling and mechanical fixation can be realized with a simple structure.
- the detection unit 5 includes a scintillator 51 that emits scintillation light according to incident radiation, and a photodiode that detects scintillation light from the scintillator 51.
- the light emission amount of the scintillator 51 changes depending on the temperature of the scintillator 51. According to the said structure, it can suppress that the heat
- the detection unit 3 of the present embodiment is a detection unit 3 for a CT apparatus provided with a plurality of the detection modules 2 described above, extends along the first direction D1, and the plurality of heat dissipation members 8 are in the first direction D1. And each of the heat dissipating members 8 is attached to the frame 4 via the support pins FP so as to be separated from the frame.
- the detection unit 3 can improve the heat dissipation performance and reduce the power required to rotate the gantry.
- the heat radiating member 8 of each detection module 2 is attached to the frame 4 via the support pins FP so as to be separated from the frame 4. Therefore, the dimensional error and assembly error of each element can be absorbed by the gap g between the heat radiating member 8 and the frame 4 while aligning the positions of the incident surfaces 51 a among the plurality of detection modules 2. Therefore, it is possible to align the positions of the incident surfaces 51a among the plurality of detection modules 2, and the position accuracy can be improved.
- a pair of through holes 87 and 87 are provided symmetrically with respect to the center portion of the detection module 2 in the first direction D 1, and a pair of support pins inserted into the pair of through holes 87 and 87.
- the detection module 2 is fixed to the frame 4 via the FP and FP. For this reason, the position shift by the centrifugal force at the time of rotation of a gantry can be suppressed.
- the detection unit 5 includes the scintillator 51 and the photodiode array 52.
- a direct detection type detection element for example, one using a crystal such as CdTe or CdZnTe
- the configuration, the number, the material, and the like of each element are not limited to the configuration, the number, the material, and the like in the above embodiment, and can be changed as appropriate.
- the present invention can be used for a radiation detection module for a CT apparatus.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Measurement Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
図1は、実施形態に係る放射線検出ユニットを複数備えたCT装置を示す概略図である。図1に示されるように、CT(Computed Tomography)装置1は、被検体Hに対して、不図示の放射線源から放射線(例えば、X線、又はγ線等)を照射し、被検体Hを透過した放射線を複数の検出モジュール(放射線検出モジュール)2により検出する。複数の検出モジュール2は、不図示の回転機構(ガントリ)に固定されている。複数の検出モジュール2は、ガントリの回転方向(チャンネル方向)Cに沿って回転し、スライス方向(体軸方向)Sに沿って直線運動する。
図2は、図1中の放射線検出ユニットを示す斜視図である。ここで、スライス方向Sに沿う方向は第1方向D1であり、チャンネル方向Cの接線に沿う方向(第1方向D1に直交する方向)は第2方向D2であり、検出モジュール2の入射面51a(後述)の法線に沿う方向は第3方向D3である。
図3は、図2中の放射線検出モジュールを示す側面図、図4は、図3中のIV-IV矢視図である。図3及び図4に示されるように、検出モジュール2は、検出部5、支持基板6、処理部7、及び、放熱部材8を有している。
Claims (5)
- 放射線を検出するCT装置用の放射線検出モジュールであって、
放射線を検出する検出部と、
前記検出部からの信号を処理する処理部と、
前記処理部と熱的に結合され、前記処理部からの熱を放散する放熱部材と、を備え、
前記放熱部材は、複数のフィンを有しており、
前記複数のフィンは、前記CT装置のスライス方向に沿う第1方向において、互いに離間しており、
前記複数のフィンのそれぞれは、前記第1方向と交差するように拡がる板状を呈している、
放射線検出モジュール。 - 前記処理部と前記放熱部材との間には、前記処理部と前記放熱部材とを熱的に結合する高熱伝導性樹脂が配置されている、
請求項1記載の放射線検出モジュール。 - 前記検出部及び前記処理部を支持する基板を更に備え、
前記放熱部材は、
前記高熱伝導性樹脂を介して前記処理部と熱的に結合された結合部と、
前記基板に固定された固定部と、を有しており、
前記固定部は、前記結合部に対して前記基板側に突出しており、
前記固定部により形成された前記基板と前記結合部との間の隙間に、前記処理部と前記高熱伝導性樹脂とが配置されている、
請求項2記載の放射線検出モジュール。 - 前記検出部は、
入射した放射線に応じてシンチレーション光を発するシンチレータと、
前記シンチレータからのシンチレーション光を検出する検出素子と、を有している、
請求項1又は2記載の放射線検出モジュール。 - 請求項1~4のいずれか一項記載の放射線検出モジュールを複数備えたCT装置用の放射線検出ユニットであって、
前記第1方向に沿って延在し、前記複数の放熱部材が前記第1方向に沿って取り付けられたフレームを備え、
前記放熱部材のそれぞれは、前記フレームと離間するように、棒状部材を介して前記フレームに取り付けられている、
放射線検出ユニット。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/897,409 US20160128651A1 (en) | 2013-06-18 | 2014-03-31 | Radiation detection module and radiation detection unit |
EP14813102.2A EP3011906A4 (en) | 2013-06-18 | 2014-03-31 | MODULE AND DETECTION UNIT FOR RADIATION |
CN201480034593.1A CN105377139A (zh) | 2013-06-18 | 2014-03-31 | 放射线检测模块以及放射线检测单元 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013127544A JP2015000290A (ja) | 2013-06-18 | 2013-06-18 | 放射線検出モジュール及び放射線検出ユニット |
JP2013-127544 | 2013-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014203589A1 true WO2014203589A1 (ja) | 2014-12-24 |
Family
ID=52104333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/059440 WO2014203589A1 (ja) | 2013-06-18 | 2014-03-31 | 放射線検出モジュール及び放射線検出ユニット |
Country Status (5)
Country | Link |
---|---|
US (1) | US20160128651A1 (ja) |
EP (1) | EP3011906A4 (ja) |
JP (1) | JP2015000290A (ja) |
CN (1) | CN105377139A (ja) |
WO (1) | WO2014203589A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10802162B2 (en) * | 2016-11-15 | 2020-10-13 | Fujifilm Corporation | Radiographic image capturing apparatus and heat dissipation method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6167705U (ja) * | 1984-10-08 | 1986-05-09 | ||
JPH09508305A (ja) | 1994-02-03 | 1997-08-26 | アナロジック コーポレーション | X線断層撮影装置用のモジュール型検知器構造 |
JP2006204399A (ja) * | 2005-01-26 | 2006-08-10 | Hitachi Medical Corp | X線ct装置 |
JP2006310812A (ja) * | 2005-03-30 | 2006-11-09 | Yasuyuki Agari | 熱伝導性シート |
JP2007319670A (ja) * | 2006-05-29 | 2007-12-13 | Siemens Ag | 放射線検出器の冷却装置および冷却方法ならびに放射線検出器装置の冷却システム |
JP2010187811A (ja) * | 2009-02-17 | 2010-09-02 | Hitachi Medical Corp | X線ct装置 |
US20100322374A1 (en) * | 2009-06-23 | 2010-12-23 | Thorsten Buettner | Tomography apparatus with an annular airflow channel with an air-diverting ventilation element |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6931092B2 (en) * | 2003-06-30 | 2005-08-16 | General Electric Company | System and method for thermal management of CT detector circuitry |
JP4764050B2 (ja) * | 2005-03-31 | 2011-08-31 | 株式会社日立製作所 | 核医学診断装置および核医学診断装置の冷却方法 |
DE102007033463B4 (de) * | 2007-07-18 | 2009-07-23 | Siemens Ag | Detektormodul, Strahlungsdetektor und Tomografiegerät |
US8553834B2 (en) * | 2010-09-17 | 2013-10-08 | Analog Devices, Inc. | Computed tomography detector module |
-
2013
- 2013-06-18 JP JP2013127544A patent/JP2015000290A/ja active Pending
-
2014
- 2014-03-31 EP EP14813102.2A patent/EP3011906A4/en not_active Withdrawn
- 2014-03-31 WO PCT/JP2014/059440 patent/WO2014203589A1/ja active Application Filing
- 2014-03-31 US US14/897,409 patent/US20160128651A1/en not_active Abandoned
- 2014-03-31 CN CN201480034593.1A patent/CN105377139A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6167705U (ja) * | 1984-10-08 | 1986-05-09 | ||
JPH09508305A (ja) | 1994-02-03 | 1997-08-26 | アナロジック コーポレーション | X線断層撮影装置用のモジュール型検知器構造 |
JP2006204399A (ja) * | 2005-01-26 | 2006-08-10 | Hitachi Medical Corp | X線ct装置 |
JP2006310812A (ja) * | 2005-03-30 | 2006-11-09 | Yasuyuki Agari | 熱伝導性シート |
JP2007319670A (ja) * | 2006-05-29 | 2007-12-13 | Siemens Ag | 放射線検出器の冷却装置および冷却方法ならびに放射線検出器装置の冷却システム |
JP2010187811A (ja) * | 2009-02-17 | 2010-09-02 | Hitachi Medical Corp | X線ct装置 |
US20100322374A1 (en) * | 2009-06-23 | 2010-12-23 | Thorsten Buettner | Tomography apparatus with an annular airflow channel with an air-diverting ventilation element |
Non-Patent Citations (1)
Title |
---|
See also references of EP3011906A4 |
Also Published As
Publication number | Publication date |
---|---|
CN105377139A (zh) | 2016-03-02 |
EP3011906A1 (en) | 2016-04-27 |
US20160128651A1 (en) | 2016-05-12 |
JP2015000290A (ja) | 2015-01-05 |
EP3011906A4 (en) | 2016-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9466594B2 (en) | Compact sensor module | |
JP5281484B2 (ja) | 放射線検出ユニット | |
US7649178B2 (en) | Solid state detector packaging technique | |
RU2689257C1 (ru) | Детектор излучения с нагревательным устройством | |
JP5455620B2 (ja) | 放射線検出器および当該検出器を含む装置 | |
CN105044758B (zh) | 光谱成像检测器 | |
JP6081697B2 (ja) | センサユニット及び固体撮像装置 | |
WO2009149593A1 (zh) | 用于辐射探测的阵列固体探测器 | |
JP7185481B2 (ja) | 放射線撮像装置 | |
JP6038733B2 (ja) | 放射線検出ユニットの製造方法 | |
WO2014203589A1 (ja) | 放射線検出モジュール及び放射線検出ユニット | |
JP7181050B2 (ja) | 放射線撮像装置 | |
JP5588262B2 (ja) | 放射線検出器立て及び放射線検出装置 | |
EP3042395B1 (en) | Radiation detector element | |
CN108937979B (zh) | 在载体元件上具有光源的x射线检测器 | |
JP7181049B2 (ja) | 放射線撮像装置、放射線撮像装置の製造方法、及び放射線撮像装置の修復方法 | |
JP7500876B2 (ja) | X線放射の検出のためのモジュールアセンブリ | |
JP2024092573A (ja) | 電磁波検出ユニットの製造方法 | |
JP2012202746A (ja) | 放射線検出装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14813102 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 242743 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14897409 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2014813102 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014813102 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |