WO2023196839A1 - Procédés et appareil d'exposition de source radiographique - Google Patents
Procédés et appareil d'exposition de source radiographique Download PDFInfo
- Publication number
- WO2023196839A1 WO2023196839A1 PCT/US2023/065362 US2023065362W WO2023196839A1 WO 2023196839 A1 WO2023196839 A1 WO 2023196839A1 US 2023065362 W US2023065362 W US 2023065362W WO 2023196839 A1 WO2023196839 A1 WO 2023196839A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiographic source
- exposure device
- processing system
- radiographic
- source
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 37
- 238000012545 processing Methods 0.000 claims abstract description 108
- 239000002775 capsule Substances 0.000 claims abstract description 24
- 230000035939 shock Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 20
- 230000033001 locomotion Effects 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000002601 radiography Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000012552 review Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- -1 dirt Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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- 230000005251 gamma ray Effects 0.000 description 1
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- 230000001902 propagating effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/02—Transportable or portable shielded containers with provision for restricted exposure of a radiation source within the container
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
Definitions
- FIG. 3 is a block diagram of an example computing system which may implement the processing system and/or the computing system of FIG. 2.
- FIG. 11 is a flowchart representative of example machine readable instructions which may be performed by the example processing system of FIG. 2 to collect, store, process, and/or transmit sensor data to detect a worn-through condition of the source tube.
- the radiographic source housing 104 enables connection of a control cable 110 to the radiographic source 102 for exposure and retraction of the radiographic source 102.
- the control cable 110 may be physically attached or connected to a source connector 112 that is physically coupled to the radiographic source 102.
- the control cable 110 When engaged, the control cable 110 is controlled to extend into and through the source tube 106 to push the radiographic source 102 to an exposed position external to the radiographic source housing 104. Conversely, the control cable 110 is retracted to pull the radiographic source 102 from the exposed position back into the source tube 106 to the shielded position, at which time the control cable 110 may be detached from the radiographic source 102.
- the photovoltaic system 222 may be tuned for the type of radionuclide used in the radiographic source 102, and thereby makes use of energy that would otherwise be absorbed and dispersed in the shield 108.
- An example implementation of the photovoltaic system 222 is described by John K. LIAKOS (2011) Gamma-Ray- Driven Photovoltaic Cells via a Scintillator Interface, Journal of Nuclear Science and Technology, 48:12, 1428-1436, DOI: 10.1080/18811248.2011.9711836 (“Liakos”). The entirety of Liakos is incorporated herein by reference.
- FIG. 3 is a block diagram of an example computing system 300 that may be used to implement either of the processing system 202 and/or the external computing device 224 FIG. 2.
- the example computing system 300 may be implemented using a personal computer, a server, a smartphone, a laptop computer, a workstation, a tablet computer, and/or any other type of computing device.
- the processing system 202 monitors an output value of the odometer 206.
- the odometer value may indicate a net distance between the stored position and the current position of the radiographic source 102.
- the processing system 202 displays the odometer value (e.g., via the display 324), which may be observable by the operator.
- the processing system 202 determines whether the odometer value is zero (or other reference value). If the odometer value is zero (block 506), at block 508 the processing system 202 resets a maximum extension length counter, which tracks a maximum extension length per exposure cycle. Control then returns to block 502 to continue monitoring the odometer value.
- the processing system 202 monitors the output of the accelerometer 216.
- the processing system 202 determines whether the output of the accelerometer 216 indicates that the radiographic source exposure device 200 is in a predetermined orientation. For example, the processing system 202 may determine the orientation of the radiographic source exposure device 200 based on the determination of the gravity vector via the accelerometer 216 and the known orientation of the accelerometer with respect to the housing 104 or shield 108. In some examples, the radiographic source exposure device 200 may only be permitted to be oriented in certain ways during use, storage, or transportation.
- the processing system 202 determines whether the accelerometer 216 indicates that a shock has occurred. For example, a sufficiently high acceleration rate and/or high deceleration rate may indicate that the radiographic source exposure device 200 has been subjected to a shock force, such as being dropped or struck. If the accelerometer 216 does not indicate that a shock has occurred (block 910), control returns to block 902.
- Some implementations may comprise a non-transitory machine-readable (e.g., computer readable) medium (e.g., FLASH drive, optical disk, magnetic storage disk, or the like) having stored thereon one or more lines of code executable by a machine, thereby causing the machine to perform processes as described herein.
- a non-transitory machine-readable medium e.g., FLASH drive, optical disk, magnetic storage disk, or the like
- the term “non-transitory machine- readable medium” is defined to include all types of machine readable storage media and to exclude propagating signals.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
Un exemple de dispositif d'exposition de source radiographique comprend : un boîtier; une capsule de source radiographique à l'intérieur du boîtier, la capsule de source radiographique ayant un radionucléide; un écran à l'intérieur du boîtier et configuré pour protéger la capsule de source radiographique et pour permettre l'extension de la capsule de source radiographique pour exposer la capsule de source radiographique; un ou plusieurs capteurs couplés au boîtier, le ou les capteurs étant configurés pour détecter des données de capteur comprenant un ou plusieurs parmi : un comptage de cycles d'exposition, une longueur entre la position de capsule de source radiographique et une position stockée, une dose de surface, une décroissance de source de la source radiographique, un état de mode de verrouillage de dispositif de verrouillage, un état de clé de déverrouillage, une orientation de dispositif d'exposition de source radiographique, un comptage de particules à l'intérieur de l'écran, un événement de choc ou une usure de protection; un système de traitement à l'intérieur du boîtier et configuré pour stocker les données de capteur et délivrer les données de capteur; et une source d'alimentation à l'intérieur du boîtier et configurée pour fournir de l'énergie au système de traitement.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202263327545P | 2022-04-05 | 2022-04-05 | |
| US63/327,545 | 2022-04-05 | ||
| US18/295,630 | 2023-04-04 | ||
| US18/295,630 US20230314630A1 (en) | 2022-04-05 | 2023-04-04 | Methods and apparatus for radiographic source exposure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023196839A1 true WO2023196839A1 (fr) | 2023-10-12 |
Family
ID=86285978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2023/065362 WO2023196839A1 (fr) | 2022-04-05 | 2023-04-05 | Procédés et appareil d'exposition de source radiographique |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2023196839A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003248A1 (fr) * | 2013-07-09 | 2015-01-15 | Buffalo Inspection Services (2005) Inc. | Appareil et procédé pour le pointage de sources de rayonnement |
| KR20220006422A (ko) * | 2020-07-08 | 2022-01-17 | 한국원자력안전기술원 | 이동형 방사선원 조사기의 위치추적 범용 단말기 |
-
2023
- 2023-04-05 WO PCT/US2023/065362 patent/WO2023196839A1/fr unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003248A1 (fr) * | 2013-07-09 | 2015-01-15 | Buffalo Inspection Services (2005) Inc. | Appareil et procédé pour le pointage de sources de rayonnement |
| KR20220006422A (ko) * | 2020-07-08 | 2022-01-17 | 한국원자력안전기술원 | 이동형 방사선원 조사기의 위치추적 범용 단말기 |
Non-Patent Citations (1)
| Title |
|---|
| JOHN K.: "LIAKOS (2011) Gamma-Ray-Driven Photovoltaic Cells via a Scintillator Interface", JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. 48, no. 12, pages 1428 - 1436 |
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