CN1508564A - Penetration ionization chamber for monitoring dosage rate of x-ray source - Google Patents
Penetration ionization chamber for monitoring dosage rate of x-ray source Download PDFInfo
- Publication number
- CN1508564A CN1508564A CNA021564116A CN02156411A CN1508564A CN 1508564 A CN1508564 A CN 1508564A CN A021564116 A CNA021564116 A CN A021564116A CN 02156411 A CN02156411 A CN 02156411A CN 1508564 A CN1508564 A CN 1508564A
- Authority
- CN
- China
- Prior art keywords
- lower house
- battery lead
- lead plate
- shell
- subjacent
- 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
- 238000012544 monitoring process Methods 0.000 title abstract description 7
- 230000035515 penetration Effects 0.000 title abstract 2
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
The invention is a kind of penetration ion chamber used in X beam source dose rate monitoring, which comprises the upper shell and the subjacent shell. There sets several layers of polar insulation board, two layers of polar board, protection ring and the board wind used to fix above objects. The upper shell is fixed with the subjacent one with screw and forms the sensitive region, air filling and discharging region and the grounding area. The air filling pipe penetrates the subjacent shell to the sensitive region. The character lies in: there sets a protection cover for air filling pipe at the front end of the sensitive region. There sets plastic sealed ring on the upper end of the subjacent shell. There is a connection box. The polar line of the two polar is in the connection box, and is connected to two sockets by soft wires, which is used to output high voltage and measuring signal.
Description
Technical field
The present invention relates to radiation image-forming system, particularly the used penetrating lonization chamber detector assembly of radiation image-forming system belongs to the radiation checking technical field.
Background technology
Penetrating lonization chamber is mainly used to solve the monitoring to accelerator or other radiogenic dose rates, and the beam dose rate that goes out of accelerator is stabilized in the scope, can not too many absorption be arranged and influence imaging ray.
The product of penetrating lonization chamber of the prior art has simple in structure to advantages such as radiation absorption are little, but its poor sealing performance particularly under the environment of humidity or under the environment of ambient gas complicated component, very easily causes ionization chamber work undesired.Again because a double layer screen cable has only been used in high pressure input and signal output, so high pressure arrives the leakage current of signal wire by insulation course, and undesired signal also can be coupled on the signal wire by high pressure zone, has influenced the output of ionization chamber, must influence measuring accuracy.
Summary of the invention
In order to solve above-mentioned problems of the prior art, goal of the invention of the present invention provides a kind of penetrating lonization chamber that is used for the monitoring of x-ray source dose rate.It can strengthen the adaptability of environment and improve measuring accuracy.
In order to reach above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
A kind of penetrating lonization chamber that is used for the monitoring of x-ray source dose rate; it comprises lower house, upper shell, arranges the first electrode insulation plate, first battery lead plate, the second electrode insulation plate, protection ring, third electrode insulcrete, second battery lead plate, the 4th electrode insulation plate and the leaf spring that above-mentioned battery lead plate, protection ring, insulcrete can be fixed in lower house from bottom to up successively.Upper shell is fixed by screw and lower house and is formed the sensitive volume, fills exhaust area and Wiring area.Set gas-filled tube passes upper shell or lower house leads to the sensitive volume.Its design feature is: the end face of described sensitive volume is provided with the protective cover that gas-filled tube is shielded.The end face of described Wiring area is provided with the terminal box of being made up of two sockets.The contact conductor of first battery lead plate and second battery lead plate places terminal box, is connected respectively to first socket and second socket by flexible cord and is used to import high pressure and output measuring-signal.Upper surface at lower house is equipped with rubber seal.
The present invention has been owing to adopted the structure of sealing, can make the gas of sensitive volume not be subjected to the influence of ambient atmos, avoided having improved and having surveyed stability because the sensitive volume gas componant changes the detection efficiency that causes and the variation of sensitivity, strengthened environmental suitability.Wiring area uses said structure, has reduced influence and the anti-electromagnetic disturbance ability of high pressure to detector output signal, has improved measuring accuracy greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is user mode figure of the present invention.
The present invention will be further described below in conjunction with the drawings and the specific embodiments.
Embodiment
Referring to Fig. 1, Fig. 2, penetrating lonization chamber of the present invention comprises lower house 1, upper shell 11.The leaf spring 10 of the first electrode insulation plate 6, first battery lead plate 4, the second electrode insulation plate 7, protection ring 3, third electrode insulcrete 8, second battery lead plate 5, the 4th electrode insulation plate 9 being installed in lower house 1 from top to bottom successively and above-mentioned battery lead plate, protection ring, insulcrete can being fixed.Be equipped with rubber seal 2 in the upper surface of lower house 1.Upper shell 11 covers on the lower house 1 that installs above-mentioned parts, and fixes with screw.The contact conductor 17 of described two plate electrode plates 4,5 places set terminal box 15, is connected on first socket 13 and second socket 14 by flexible cord.One is used to import the required high pressure of detector work, and one is used for the output signal electric current.Gas-filled tube 16 passes lower house 1 and leads to the sensitive volume.The end face of sensitive volume is provided with the protective cover 12 that gas-filled tube is shielded, and protective cover 12 is screwed on lower house 1.Described terminal box 15 is made for metal material.
Referring to Fig. 3, accelerator sends ray and passes penetrating lonization chamber of the present invention and testee, arrives the imaging detector array.Use when of the present invention, penetrating lonization chamber is fixed near on the collimating apparatus of radiographic source target spot, link to each other, just can carry out work with the back circuit.
In the use, when ray enters the sensitive volume of penetrating lonization chamber, make the gas generation ionization of sensitive volume, the positive ion of generation and electronics move to two battery lead plates under effect of electric field, and output forms current signal.Owing to be added with high pressure between two battery lead plates, the leakage current of formation directly flows to the ionization chamber shell of ground connection by protection ring and does not influence the signal of output.Roentgen dose X rate difference, the intensity difference that enters the ray of penetrating lonization chamber, output current intensity difference then, the dose rate of monitoring accelerator that just can be real-time.
Claims (2)
1. one kind is used for the penetrating lonization chamber that the x-ray source dose rate is monitored; it comprises lower house (1); upper shell (11); in lower house (1), arrange the first electrode insulation plate (6) from bottom to up successively; first battery lead plate (4); the second electrode insulation plate (7); protection ring (3); third electrode insulcrete (8); second battery lead plate (5); the 4th electrode insulation plate (9) and can be with above-mentioned battery lead plate; protection ring; the leaf spring (10) that insulcrete is fixing; upper shell (11) is fixing and form the sensitive volume by screw and lower house (1); fill exhaust area and Wiring area; set gas-filled tube (16) passes lower house (1) and leads to the sensitive volume; it is characterized in that: the end face of described sensitive volume is provided with the protective cover (12) that gas-filled tube (16) is shielded; the end face of described Wiring area is provided with the terminal box of being made up of two sockets (15); first battery lead plate (4) places in the terminal box (15) with the contact conductor (17) of second battery lead plate (5); be connected respectively to first socket (13) and second socket (14) by flexible cord and be used to import high pressure and output measuring-signal, the upper surface of described lower house (1) is equipped with rubber seal (2).
2. according to the described penetrating lonization chamber of claim 1, it is characterized in that: described terminal box (15) is made for metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156411 CN1220069C (en) | 2002-12-16 | 2002-12-16 | Penetration ionization chamber for monitoring dosage rate of X-ray source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02156411 CN1220069C (en) | 2002-12-16 | 2002-12-16 | Penetration ionization chamber for monitoring dosage rate of X-ray source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508564A true CN1508564A (en) | 2004-06-30 |
| CN1220069C CN1220069C (en) | 2005-09-21 |
Family
ID=34236202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02156411 Expired - Lifetime CN1220069C (en) | 2002-12-16 | 2002-12-16 | Penetration ionization chamber for monitoring dosage rate of X-ray source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1220069C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330977C (en) * | 2004-09-14 | 2007-08-08 | 清华大学 | Small size penetration ionization chamber for monitoring X-ray source dosage rate |
| CN101900826A (en) * | 2010-06-13 | 2010-12-01 | 中国科学院近代物理研究所 | Heavy ion beam current transverse dosage distribution measuring detector and two-dimensional imaging method thereof |
| CN103713308A (en) * | 2012-10-09 | 2014-04-09 | 苏州雷泰医疗科技有限公司 | Flat detector for dosage detection and verification and image detection device adopting the same |
-
2002
- 2002-12-16 CN CN 02156411 patent/CN1220069C/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330977C (en) * | 2004-09-14 | 2007-08-08 | 清华大学 | Small size penetration ionization chamber for monitoring X-ray source dosage rate |
| CN101900826A (en) * | 2010-06-13 | 2010-12-01 | 中国科学院近代物理研究所 | Heavy ion beam current transverse dosage distribution measuring detector and two-dimensional imaging method thereof |
| CN101900826B (en) * | 2010-06-13 | 2012-10-03 | 中国科学院近代物理研究所 | Heavy ion beam current transverse dosage distribution measuring detector and two-dimensional imaging method thereof |
| CN103713308A (en) * | 2012-10-09 | 2014-04-09 | 苏州雷泰医疗科技有限公司 | Flat detector for dosage detection and verification and image detection device adopting the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1220069C (en) | 2005-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1048927A (en) | Fault finding method and detection instrument in the inflatable insulation electric device | |
| CN105738940A (en) | Detector for online measurement of beam profile uniformity | |
| US4859855A (en) | Dosimeter for ionizing radiation | |
| CN1220069C (en) | Penetration ionization chamber for monitoring dosage rate of X-ray source | |
| US4071764A (en) | Gamma and alpha compensated fission chamber | |
| CN2591644Y (en) | Penetration ionization chamber for monitoring X-ray source dosage rate | |
| KR102072652B1 (en) | Radiation monitoring apparatus using ination chamber | |
| CN1749778A (en) | Small size penetration ionization chamber for monitoring X-ray source dosage rate | |
| CN1071260A (en) | Radon eduction rate on medium furface measuring method and measuring instrument | |
| CN2736785Y (en) | Small dimension penetration ionization chamber for X-ray source dosage rate monitoring | |
| US4091288A (en) | Threshold self-powered gamma detector for use as a monitor of power in a nuclear reactor | |
| CN2791640Y (en) | Integrated x-ray detector | |
| US4136282A (en) | Directional detector of gamma rays | |
| CN2172869Y (en) | Detector for surface uranium alpha pollution | |
| CN2578841Y (en) | Radial imaging solid detector | |
| CN219978539U (en) | High-pressure ionization chamber radiation monitor | |
| CN207817220U (en) | A kind of ionisation chamber | |
| US5430352A (en) | Alternating electric field diminishing structure for cathode ray tube device | |
| CN115356762A (en) | Wall-embedded irradiation-resistant wide-range composite ionization chamber detector and measuring method thereof | |
| RU53456U1 (en) | DIRECT CHARGE NEUTRON DETECTOR | |
| CN115346704A (en) | Wall-embedded type radiation-resistant ionization chamber detector and measuring method thereof | |
| JPH08101276A (en) | Gamma-ray detector | |
| CN218956653U (en) | Motor current detection device and bucket elevator thereof | |
| CN2138843Y (en) | Triple coaxial connector | |
| CN207717992U (en) | Novel proportional counter tube detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGHUA UNIVERSITY; TONGFANGWEISHI TECHNOLOGY CO., Free format text: FORMER NAME OR ADDRESS: QINGHUA UNIVERSITY; TONGFANG WEISHI TECHNOLOGY CO., LTD., QINGHUA |
|
| CP03 | Change of name, title or address |
Address after: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee after: Nuctech Co.,Ltd. Patentee after: TSINGHUA University Address before: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee before: Nuctech Co.,Ltd. Patentee before: Tsinghua University |
|
| CX01 | Expiry of patent term |
Granted publication date: 20050921 |
|
| CX01 | Expiry of patent term |