CN106772552A - Combined type gamma-ray radiation device - Google Patents
Combined type gamma-ray radiation device Download PDFInfo
- Publication number
- CN106772552A CN106772552A CN201710119747.2A CN201710119747A CN106772552A CN 106772552 A CN106772552 A CN 106772552A CN 201710119747 A CN201710119747 A CN 201710119747A CN 106772552 A CN106772552 A CN 106772552A
- Authority
- CN
- China
- Prior art keywords
- combined type
- ray radiation
- type gamma
- attenuator
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/005—Details of radiation-measuring instruments calibration techniques
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to gamma-ray radiation protection field.The present invention solves the problems, such as that existing radiator assemblies global design causes larger volume, heavier-weight and is difficult to dismantle, there is provided a kind of combined type gamma-ray radiation device, its technical scheme can be summarized as：Combined type gamma-ray radiation device, it is characterised in that it includes the source container being sequentially connected, Fader device and ray beam shaper, are to be detachably connected between the source container and Fader device, there is perforation hole, the perforation hole and Fader device Corresponding matching on source container.The beneficial effects of the invention are as follows：It is readily transported and stores, it is adaptable to irradiation unit.
Description
Technical field
The present invention relates to gamma-ray radiation protection field, more particularly to for scene to gamma rays dosage measurement instrument
The device examined and determine.
Background technology
Measurement gamma rays dosage (rate), the instrument of dose equivalent (rate) and instrument are widely used in military, national defence and the people
It is to ensure nuclear facilities, gamma ray device, staff and the particularly important instrument of public security and means with field, plays
Indispensable effect, to ensure its performance and measurement value accurately and reliably, China's measurement Law and relevant laws and regulations regulation are needed
Periodically it is examined and determine or is calibrated, be belonged to the measurement instrument of compulsory verification.
According to GB GB/T 12162.1-2000《For calibrating dosemeter and dose rate instrument and determining the X of its energy response
With γ reference radiations-radiation characteristic and production method》, GB/T12162.2-2004《For calibrate dosemeter and dose rate instrument and
The energy range for determining X the and γ reference radiation part 2 radiation protection of its energy response is 8keV~1.3MeV and 4MeV
The dosimetry of the reference radiation of~9MeV》, and JJG393-2003《Radiation protection X and γ radiation dose equivalents (rate) instrument
With monitor vertification regulation》Requirement, calibrating to gamma dose (rate) instrument and meter and calibration Ying Han are radiated by isotope
Carried out on gamma air kerma (air kerma) the secondary standard device for the secondary standard Reference radiation field that source is constituted.Its
In, provide gamma rays for reference radiation is the irradiation unit comprising isotope radioactive source, i.e. radiator assemblies.To ensure to come
The 5% of the air kerma rate of direct radiation, irradiation unit are not to be exceeded from the air kerma rate of environment scattering radiation
Typically realized with two methods of collimation design using non-aligned design.At present, irradiation unit is mainly designed using collimation.
Using the irradiation unit of collimation design, typically by the source container group of collimater, attenuator, shutter and storage radioactive source
Into.Collimater is columnar passage, both passing through for ray, and for limiting the shapes and sizes of beam.To reduce
The influence of scattered ray, diaphragm is typically provided with collimater inwall.The ray of collimater inject end be typically provided with by
Attenuator and shutter that different-thickness lead or leaf are constituted, for decay and the blocking of incident ray to incident ray intensity,
Current attenuator is all integrated with collimater, and the attenuator that attenuator is used cannot also be changed, and collimater typically also may be used
Referred to as ray beam shaper.The isotope radioactive source of ray is produced to be placed in source container, source container is typically by sufficiently thick lead
It is made, for protecting leaking for ray, the ray fluence of general source container appearance is the one thousandth of initial value.For60Co, lead
The thickness of overcoat is generally 12.5cm, for137Cs is generally 6.5cm.The radioactive source higher for intensity, in order to make
Dosage suffered by user is restricted to acceptable level, generally requires thicker lead screen thickness degree.Therefore, the weight of irradiation unit
Amount generally it is all heavier, typically have hundreds of kilograms even up to tonne more than, so weight radiator be highly detrimental to transport and pacify
All risk insurance is deposited.Used as special article, its transport needs to obtain relevant departments' approval isotope radioactive source, and using with transport qualification
Special-purpose vehicle transport.And general source container by collimater, attenuator, shutter and storage radioactive source of current irradiation unit etc.
All part global designs and processing, it is difficult to dismounting and respectively transport and preservation.
The content of the invention
The purpose of the present invention is exactly to overcome the current radiator assemblies global design to cause larger volume, heavier-weight and be difficult to
A kind of shortcoming of dismounting, there is provided combined type gamma-ray radiation device.
The present invention solves its technical problem, and the technical scheme of use is that combined type gamma-ray radiation device, its feature exists
In, including source container, Fader device and the ray beam shaper being sequentially connected, it is between the source container and Fader device
It is detachably connected, there is perforation hole, the perforation hole and Fader device Corresponding matching on source container.
Specifically, the source container includes transmission device, actuating unit, source core and screening arrangement, on the screening arrangement
With perforation hole, the source core is connected with transmission device, and transmission device is connected with actuating unit, and source core is solid cylinder, and
Perpendicular to the cylinder centre of gyration and to inside the cylinder holding tank and corresponding opening, institute are provided with the direction of extension
Holding tank is stated for placing radioactive source, inside the source core insertion screening arrangement, can according to transmission device transmission come power
The power of mechanism is rotated inside screening arrangement along the centre of gyration of the cylinder, when turning to a certain fixed position, institute
State opening corresponding with perforation hole.
Further, radius of the holding tank to the distance extended inside the cylinder no more than the cylinder.
Specifically, the source core is lead cylinder.
Further, the screening arrangement is solid lead screen device or solid tungsten screening arrangement.
Further, the screening arrangement is the second cylinder, the centre of gyration of second cylinder with it is embedded its
The centre of gyration of internal source core is vertical and intersecting.
Specifically, the Fader device includes main shutter, attenuator, lifting device and support meanss, the support dress
Put and be provided with ray entrance port, the main shutter and attenuator are successively set at ray entrance port along directions of rays, it is main fast
Door and attenuator are and lifting device coordinates to realize opening and closing ray entrance port；When the source container is placed and secured in the branch
When on support arrangement, the perforation hole of the source container can be corresponding with ray entrance port.
Further, the support meanss are made up of shielding material.
Specifically, the quantity of attenuator is 4 pieces, the attenuation multiple of every piece of attenuator is all identical or different, each attenuator
At least 4 kinds but the attenuation multiple different no more than 16 kinds can be freely formed.
Further, the lifting device includes slide-bar, upper backup pad, sliding block and electromagnetic suction device, the slide-bar
In support meanss and slide-bar axial direction and the attenuator direction of motion in the same direction, the sliding block is nested on slide-bar and can edge
Slide-bar is moved, and the sliding block is connected with upper backup pad, and the electromagnetic suction device is arranged on upper backup pad, the upper backup pad
It is placed on slide-bar top；It is provided with tab on the sliding block, the upper end of the main shutter and attenuator is provided with lock hole,
Tab can be under electromagnetic switch control in embedded lock hole.
Specifically, the lifting device also include lower supporting plate, the lower supporting plate be arranged on slide-bar top, it is described on
Supporting plate is placed on lower supporting plate.
Further, the upper backup pad is in hood-like, and the upper backup pad is covered on all slide-bars, the sliding block connection
On the side plate of upper backup pad.
Specifically, the quantity of the slide-bar and sliding block be shutter plus all attenuator quantity twice, main shutter and
The both sides of the upper end of attenuator are provided with lock hole, and the cooperation of each group slide-bar and sliding block is corresponding with lock hole respectively.
Further, it is to be detachably connected between Fader device and ray beam shaper.
Specifically, the ray beam shaper includes annular stereotype, diaphragm, Stainless Steel Shell, graphite flake and flange, institute
State annular stereotype to be arranged on so as to form the main body of annular in stainless steel case body, the diaphragm is arranged on the inner ring of main body, institute
One end that flange is arranged on main body is stated, the graphite flake is arranged on the inner ring of flange.
The beneficial effects of the invention are as follows, above-mentioned source container and combined type gamma-ray radiation device, there is provided one kind can be free
Fractionation and the radiator for combining, in use and transportation, because it is detachable, the source container and radiation appliance for disassembling
Necessarily than overall radiator small volume and lightweight, thus it is readily transported and stores, can applies in application number
The patent application of " 201620772447.5 "《Small yardstick reference radiation field device》In, as small yardstick reference radiation field device
Irradiation unit, and it is applied to the calibrating and calibration of all kinds of gamma rays dosage measurement instruments and safety supervision instrument using scene.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of source container in the embodiment of the present invention；
Fig. 2 is the schematic diagram of Fader device in the embodiment of the present invention；
Fig. 3 is the schematic diagram of combined type gamma-ray radiation device in the embodiment of the present invention；
Fig. 4 is the schematic cross-sectional view of combined type gamma-ray radiation device in the embodiment of the present invention.
Wherein, 1 is screening arrangement, and 2 is source core, and 3 is perforation hole, and 4 is holding tank, and 5 is radioactive source, and 6 is transmission device, 7
It is motor, 8 is support meanss, and 9 is lifting device, and 10 is lock hole, and 11 is lower supporting plate, and 12 is slide-bar, and 13 is upper backup pad,
14 is sliding block, and 15 is electromagnetic suction device, and 16 is tab, and 17 is main shutter, and 18 is attenuator, and 19 is annular stereotype, 20
It is diaphragm, 21 is graphite flake, and 22 is flange.
Specific embodiment
With reference to embodiment and accompanying drawing, technical scheme is described in detail.
Combined type gamma-ray radiation device of the present invention, source container that it includes being sequentially connected, Fader device and
Ray beam shaper, to be detachably connected between source container and Fader device, has perforation hole 3, the perforation hole 3 on source container
With Fader device Corresponding matching.
Embodiment
Combined type gamma-ray radiation device in the embodiment of the present invention, its schematic diagram is shown in Figure 3, its schematic cross-sectional view
As shown in figure 4, it includes the source container, Fader device and ray beam shaper, source container and the Fader device that are sequentially connected
Between to be detachably connected, there is perforation hole 3, the perforation hole 3 and Fader device Corresponding matching on source container.
Wherein, referring to Fig. 1, it includes transmission device 622, actuating unit, source core 2 and shielding to the schematic cross-sectional view of source container
Device 1, has perforation hole 3 on screening arrangement 1, source core 2 is connected with transmission device 6, and transmission device 6 is connected with actuating unit, source
Core 2 is solid cylinder, and is provided with appearance on the direction of extension perpendicular to the cylinder centre of gyration and to inside the cylinder
Receive groove 4 and corresponding opening, holding tank 4 is used to place radioactive source 5, inside the insertion screening arrangement 1 of source core 2, can be according to transmission
The power of the actuating unit that the transmission of device 6 comes is rotated inside screening arrangement 1 along the centre of gyration of the cylinder, is turned to
During a certain fixed position, it is open corresponding with perforation hole 3.
In this example, holding tank 4 is preferably no more than the radius of the cylinder to the distance extended inside the cylinder；Source core
2 are preferably lead cylinder；Actuating unit can be motor 7 etc.；Screening arrangement 1 is preferably solid lead screen device or solid tungsten screen
Device etc. is covered, screening arrangement 1 can be the second cylinder, the centre of gyration of the second cylinder and the source core 2 in the portion that is embedded within
The centre of gyration is vertical and intersecting.
Here, Fader device, its schematic diagram is referring to Fig. 2, including main shutter 17, attenuator 18, lifting device 9 and support
Device 8, is provided with ray entrance port in support meanss 8, main shutter 17 and attenuator 18 are successively set on ray along directions of rays
At entrance port, main shutter 17 and attenuator 18 are and lifting device 9 coordinates to realize being opened and closed ray entrance port；When source container is placed
And be fixed on when in support meanss 8, the perforation hole 3 of the source container can be corresponding with ray entrance port.The support meanss 8 are preferably
Shielding material is made.
In this example, the quantity of attenuator 18 can be 4 pieces, and the attenuation multiple of every piece of attenuator 18 is all identical or different, then
Each attenuator 18 can freely form at least 4 kinds but the attenuation multiple different no more than 16 kinds, and such as attenuation multiple is respectively
2nd, 4,4 and 20, attenuator 18 can freely form 12 differential declines multiples.
Lifting device 9 can include slide-bar 12, upper backup pad 13, sliding block 14 and electromagnetic suction device 15, and slide-bar 12 is installed
In support meanss 8 and slide-bar 12 axial direction and the direction of motion of attenuator 18 in the same direction, sliding block 14 is nested on slide-bar 12 and can
Moved along slide-bar 12, sliding block 14 is connected with upper backup pad 13, electromagnetic suction device 15 is arranged on upper backup pad 13, upper backup pad
13 are placed on the top of slide-bar 12；It is provided with tab 16 on sliding block 14, the upper end of main shutter 17 and attenuator 18 is provided with lock
Determine hole 10, tab 16 can be under electromagnetic switch control in embedded lock hole 10.
Here, lifting device 9 can also include lower supporting plate 11, and lower supporting plate 11 is arranged on the top of slide-bar 12, upper branch
Fagging 13 is placed on lower supporting plate 11.Upper backup pad 13 can be in hood-like, and upper backup pad 13 is covered on all slide-bars 12, sliding block 14
It is connected on the side plate of upper backup pad 13.The quantity of slide-bar 12 and sliding block 14 can be shutter plus the quantity of all attenuators 18
Twice (its purpose is that two ends stress balance), the both sides of the upper end of main shutter 17 and attenuator 18 are provided with lock hole 10
(lock hole 10 can be through hole), the cooperation of each group slide-bar 12 and sliding block 14 is corresponding with lock hole 10 respectively.
When certain attenuation multiple is needed, such as attenuator 18 is 4 pieces, when attenuation multiple is respectively 2,4,4 and 20, it is necessary to
Attenuation multiple is 2 times, then will correspond to 4 times of attenuation multiples and 20 times of the three of attenuation multiple pieces of attenuators 18 and main shutter 17 is corresponding
Tab 16 is embedded into corresponding lock hole 10, and upper backup pad 13 is lifted by electromagnetic suction device 15, so as to lift sliding block 14,
And then lift the attenuator 18 and main shutter 17 of two pieces of 4 times of attenuators of attenuation multiple, 18,20 times of attenuation multiples, now ray enters
Loophole is opened because main shutter 17 is opened (lift main shutter 17 i.e. for main shutter 17 is opened), and due to two pieces of 4 times of decay times
Several attenuators 18 and 20 times of attenuators of attenuation multiple 18 are raised, only can be by 2 times of attenuation multiples after now ray incidence
Attenuator 18, so as to obtain the ray that attenuation multiple is 2 times.
In this example, it is detachably connected between Fader device and ray beam shaper.Fader device and ray
Can be connected by flange 22 between beam shaper.Then ray beam shaper may include annular stereotype 19, diaphragm 20, stainless steel case
Body, graphite flake 21 and flange 22, annular stereotype are arranged on so as to form the main body of annular in stainless steel case body, and diaphragm 20 is set
In the inner ring of main body, flange 22 is arranged on one end of main body, and graphite flake 21 is arranged on the inner ring of flange 22.Flange 22 is acted on
It is connected in external reference radiation field.
Although present disclosure is discussed in detail by above-mentioned preferred embodiment, but it should be appreciated that on
Give an account of to continue and be not considered as limitation of the present invention.When the personnel with professional knowledge and technical ability are reading the above
Afterwards, to various modifications of the invention, instead of and evade and all will be apparent.Therefore, protection scope of the present invention should be by institute
Attached claim is limited.
Claims (15)
1. combined type gamma-ray radiation device, it is characterised in that including the source container, Fader device and the beam that are sequentially connected
Former, to be detachably connected between the source container and Fader device, has a perforation hole on source container, the perforation hole with decline
Subtract device device Corresponding matching.
2. combined type gamma-ray radiation device as claimed in claim 1, it is characterised in that the source container includes that transmission is filled
Put, actuating unit, source core and screening arrangement, there is perforation hole on the screening arrangement, the source core is connected with transmission device, biography
Dynamic device is connected with actuating unit, and source core is solid cylinder, and perpendicular to the cylinder centre of gyration and in the cylinder
Holding tank and corresponding opening are provided with the direction that portion extends, the holding tank is used to place radioactive source, the source core insertion
Inside screening arrangement, can according to transmission device transmission come actuating unit power inside screening arrangement along the cylinder
The centre of gyration is rotated, and when turning to a certain fixed position, the opening is corresponding with perforation hole.
3. combined type gamma-ray radiation device as claimed in claim 2, it is characterised in that the holding tank is in the cylinder
Radius of the distance that portion extends no more than the cylinder.
4. combined type gamma-ray radiation device as claimed in claim 2, it is characterised in that the source core is lead cylinder.
5. combined type gamma-ray radiation device as claimed in claim 2, it is characterised in that the screening arrangement is solid lead shield
Cover device or solid tungsten screening arrangement.
6. the combined type gamma-ray radiation device as described in any one of claim 2, it is characterised in that the screening arrangement is the
Two cylinders, the centre of gyration of second cylinder is vertical with the centre of gyration of the source core in the portion that is embedded within and intersects.
7. combined type gamma-ray radiation device as claimed in claim 2, it is characterised in that the Fader device includes main fast
Door, attenuator, lifting device and support meanss, are provided with ray entrance port, the main shutter and decay in the support meanss
Piece is successively set at ray entrance port along directions of rays, and main shutter and attenuator are and lifting device cooperation is realizing that opening and closing is penetrated
Line entrance port；When the source container is placed and secured in the support meanss, the perforation hole of the source container can be with ray
Entrance port correspondence.
8. combined type gamma-ray radiation device as claimed in claim 7, it is characterised in that the support meanss are shielding material
It is made.
9. combined type gamma-ray radiation device as claimed in claim 7, it is characterised in that the quantity of attenuator is 4 pieces, often
The attenuation multiple of block attenuator is all identical or different, and each attenuator can freely form at least 4 kinds but no more than 16 kinds of differences
Attenuation multiple.
10. combined type gamma-ray radiation device as claimed in claim 7, it is characterised in that the lifting device include slide-bar,
Upper backup pad, sliding block and electromagnetic suction device, the slide-bar is arranged in support meanss and the axial direction of slide-bar is transported with attenuator
In the same direction, the sliding block is nested on slide-bar and can be moved along slide-bar, and the sliding block is connected with upper backup pad, the electromagnetism in dynamic direction
Attracting device is arranged on upper backup pad, and the upper backup pad is placed on slide-bar top；Tab, institute are provided with the sliding block
The upper end for stating main shutter and attenuator is provided with lock hole, and tab can be under electromagnetic switch control in embedded lock hole.
11. combined type gamma-ray radiation devices as claimed in claim 10, it is characterised in that under the lifting device also includes
Supporting plate, the lower supporting plate is arranged on the top of slide-bar, and the upper backup pad is placed on lower supporting plate.
12. combined type gamma-ray radiation devices as claimed in claim 10, it is characterised in that the upper backup pad in hood-like,
The upper backup pad is covered on all slide-bars, and the sliding block is connected on the side plate of upper backup pad.
13. combined type gamma-ray radiation devices as claimed in claim 10, it is characterised in that the quantity of the slide-bar and sliding block
Twice of the shutter plus all attenuator quantity is, the both sides of the upper end of main shutter and attenuator are provided with lock hole, respectively
The cooperation of group slide-bar and sliding block is corresponding with lock hole respectively.
The 14. combined type gamma-ray radiation device as described in claim any one of 1-14, it is characterised in that Fader device and
It is to be detachably connected between ray beam shaper.
15. combined type gamma-ray radiation devices as claimed in claim 15, it is characterised in that the ray beam shaper includes
Annular stereotype, diaphragm, Stainless Steel Shell, graphite flake and flange, the annular stereotype are arranged in stainless steel case body so as to shape
Into the main body of annular, the diaphragm is arranged on the inner ring of main body, and the flange is arranged on one end of main body, and the graphite flake sets
Put the inner ring in flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119747.2A CN106772552B (en) | 2017-03-02 | 2017-03-02 | Combined gamma ray radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119747.2A CN106772552B (en) | 2017-03-02 | 2017-03-02 | Combined gamma ray radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106772552A true CN106772552A (en) | 2017-05-31 |
| CN106772552B CN106772552B (en) | 2023-08-04 |
Family
ID=58960683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710119747.2A Active CN106772552B (en) | 2017-03-02 | 2017-03-02 | Combined gamma ray radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106772552B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994015183A1 (en) * | 1991-06-28 | 1994-07-07 | Valtion Teknillinen Tutkimuskeskus | Radiation source |
| JP2008008878A (en) * | 2006-06-27 | 2008-01-17 | Chiyoda Technol Corp | Calibrating device for dosemeter |
| JP2009139229A (en) * | 2007-12-06 | 2009-06-25 | Hitachi Ltd | Radiation detector calibrating device |
| US20100202592A1 (en) * | 2009-02-12 | 2010-08-12 | Hitachi Cable, Ltd. | Radiation detector attaching and detaching device |
| KR101169423B1 (en) * | 2012-02-06 | 2012-08-03 | 세안기술 주식회사 | Gamma irradiation equipment for the calibration of radiation surveymeter |
| CN102706541A (en) * | 2012-06-15 | 2012-10-03 | 北京理工大学 | System for detecting comprehensive performance of laser radiator based on virtual instrument |
| CN104345335A (en) * | 2014-10-30 | 2015-02-11 | 中国原子能科学研究院 | Portable radioactive ray irradiation device |
| KR101500285B1 (en) * | 2014-10-29 | 2015-03-06 | 주식회사 오르비텍 | Collimator transfer device of gamma-ray irrdiation apparatus for calibration |
| CN204405853U (en) * | 2014-12-29 | 2015-06-17 | 重庆建安仪器有限责任公司 | A kind of nuclear radiation instrument calibration list source apparatus |
| WO2016082294A1 (en) * | 2014-11-26 | 2016-06-02 | 中国工程物理研究院核物理与化学研究所 | Measurement method for air kerma conventional true value |
| CN205844536U (en) * | 2016-07-21 | 2016-12-28 | 中国工程物理研究院核物理与化学研究所 | Little yardstick reference radiation field device |
| CN207301349U (en) * | 2017-03-02 | 2018-05-01 | 中国工程物理研究院核物理与化学研究所 | Combined type gamma-ray radiation device |
-
2017
- 2017-03-02 CN CN201710119747.2A patent/CN106772552B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994015183A1 (en) * | 1991-06-28 | 1994-07-07 | Valtion Teknillinen Tutkimuskeskus | Radiation source |
| JP2008008878A (en) * | 2006-06-27 | 2008-01-17 | Chiyoda Technol Corp | Calibrating device for dosemeter |
| JP2009139229A (en) * | 2007-12-06 | 2009-06-25 | Hitachi Ltd | Radiation detector calibrating device |
| US20100202592A1 (en) * | 2009-02-12 | 2010-08-12 | Hitachi Cable, Ltd. | Radiation detector attaching and detaching device |
| KR101169423B1 (en) * | 2012-02-06 | 2012-08-03 | 세안기술 주식회사 | Gamma irradiation equipment for the calibration of radiation surveymeter |
| CN102706541A (en) * | 2012-06-15 | 2012-10-03 | 北京理工大学 | System for detecting comprehensive performance of laser radiator based on virtual instrument |
| KR101500285B1 (en) * | 2014-10-29 | 2015-03-06 | 주식회사 오르비텍 | Collimator transfer device of gamma-ray irrdiation apparatus for calibration |
| CN104345335A (en) * | 2014-10-30 | 2015-02-11 | 中国原子能科学研究院 | Portable radioactive ray irradiation device |
| WO2016082294A1 (en) * | 2014-11-26 | 2016-06-02 | 中国工程物理研究院核物理与化学研究所 | Measurement method for air kerma conventional true value |
| CN204405853U (en) * | 2014-12-29 | 2015-06-17 | 重庆建安仪器有限责任公司 | A kind of nuclear radiation instrument calibration list source apparatus |
| CN205844536U (en) * | 2016-07-21 | 2016-12-28 | 中国工程物理研究院核物理与化学研究所 | Little yardstick reference radiation field device |
| CN207301349U (en) * | 2017-03-02 | 2018-05-01 | 中国工程物理研究院核物理与化学研究所 | Combined type gamma-ray radiation device |
Non-Patent Citations (5)
| Title |
|---|
| A.LAKE WOOTEN ET AL.: "Calibration setting numbers for dose calibrators for the PET isotopes 53Mn,64Cu，76Br，86Y，89Zr，124I", 《APPLIED RADIATION AND ISOTOPES》 * |
| LIU,YX ET AL.: "Determination of the conventional true value of gamma-ray air kerma in a minitype reference radiation", 《APPLIED RADIATION AND ISOTOPES》 * |
| 刘易鑫 等: "小尺度参考辐射场中散射γ能谱的计量特征提取方法", 《原子能科学技术》 * |
| 赵超 等: "环境γ辐射剂量率仪现场校准用辐照装置的研制", 《核技术》 * |
| 高飞 等: "现场校准试验用便携式γ射线照射装置研制", 《宇航计测技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106772552B (en) | 2023-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Batistoni et al. | Benchmark experiments on neutron streaming through JET Torus Hall penetrations | |
| CN207301349U (en) | Combined type gamma-ray radiation device | |
| CN106646584A (en) | Shielding box | |
| CN106772552A (en) | Combined type gamma-ray radiation device | |
| CN205844536U (en) | Little yardstick reference radiation field device | |
| Mrdja et al. | Monte Carlo simulation of beta particle-induced bremsstrahlung doses | |
| McDermott | Photon skyshine from medical linear accelerators | |
| Pozzi et al. | Impact of the newly proposed ICRU/ICRP quantities on neutron calibration fields and extended range neutron rem-counters | |
| Fan et al. | Trends of annual whole-body occupational radiation exposure for industrial practices in China (2009–2018) | |
| CN206097933U (en) | Screening box | |
| Esposito et al. | Facility for gamma irradiations of cultured cells at low dose rates: design, physical characteristics and functioning | |
| Hashim et al. | Dose assessment of Betatron electron beam: A key component of safe and secure industrial operations | |
| ES2430244T3 (en) | Procedure for determining an operational magnitude that allows a simplified and optimized management of irradiated samples in facilities and that guarantees compliance with safety objectives | |
| Krmar et al. | Neutron dose equivalent measured at the maze door with various openings for the jaws and MLC | |
| Adedoyin et al. | Measurement of shielding effectiveness of building blocks against 662 KeV photons | |
| MIRIHAKIMABAD et al. | Shielding studies on a total-body neutron activation facility | |
| Talebi et al. | The influence of brass compensator thickness and field size on neutron contamination spectrum in 18MV Elekta SL 75/25 medical linear accelerator with and without flattening filter: a Monte Carlo study | |
| Binjola | Radiation protection practical aspects | |
| Sina et al. | Developing a treatment planning software based on TG-43U1 formalism for Cs-137 LDR brachytherapy | |
| JP5635583B2 (en) | γ-ray measuring device | |
| Archer et al. | Important changes in medical x‐ray imaging facility shielding design methodology. A brief summary of recommendations in NCRP Report No. 147 | |
| Lützen et al. | Effective method of measuring the radioactivity of‐capsule prior to radioiodine therapy with significant reduction of the radiation exposure to the medical staff | |
| CN205353486U (en) | Be used for eyes radiation protection and radiation does measuring glasses | |
| Ampollini et al. | Sub-background radiation exposure at the LNGS underground laboratory: dosimetric characterization of the external and underground facilities | |
| Miri-Hakimabad et al. | Improving the safety of a body composition analyser based on the PGNAA method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |