CN1586670A - Rotary closing type gamma ray radiator - Google Patents
Rotary closing type gamma ray radiator Download PDFInfo
- Publication number
- CN1586670A CN1586670A CN 200410066484 CN200410066484A CN1586670A CN 1586670 A CN1586670 A CN 1586670A CN 200410066484 CN200410066484 CN 200410066484 CN 200410066484 A CN200410066484 A CN 200410066484A CN 1586670 A CN1586670 A CN 1586670A
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- China
- Prior art keywords
- rotating shaft
- collimator
- casing
- source
- axle sleeve
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- Nuclear Medicine (AREA)
- Measurement Of Radiation (AREA)
Abstract
The rotary closing gamma ray radiator has casing, stepped rotating shaft borne on two sides of the casing and with axial slot, source holder inside the axial slot to hold sources arranged linearly and focused in one point, main shielding block and subsidiary shielding block outside the rotating shaft and shaft sleeve, collimator on the subsidiary shielding block, locating rod set in one end of the rotating shaft, and locating rod limiting switch on the casing. The present invention may be assembled to and disassembled from the system easily; adopts high density W-95 and U-238 as main shielding material; and motor drives rotating shaft to close radiative source in reliable shielding.
Description
Technical field
The present invention relates to a kind of rotary closing type gamma ray radiator.
Background technology
Gamma ray radiator is the leakage that prevents lonizing radiation, must have campaign-styled parts to intercept ray channel under the non-therapeutic state, certainly will cause the complex structure, bulky of radiation appliance like this.Its result makes radiation appliance can not finish some complicated resultant motions neatly and is not easy to dismounting like a cork from the main frame, changes the work of radioactive source.
Summary of the invention
The object of the present invention is to provide a kind of rotary closing type gamma ray radiator, not only simple in structure, control easily, and shielding is reliable, the leakage that can prevent lonizing radiation effectively.
The technical solution adopted for the present invention to solve the technical problems is:
At the intravital tank wall two-side supporting of case step-like rotating shaft is arranged, axis direction has rectangular slot on the rotating shaft elongated cylinder, the source folder is housed in the rectangular slot, to be equipped with in the source folder be in line arranges, centrage is the point-foussed source of fan-shaped distribution body, axle sleeve is inserted in rotating shaft elongated cylinder outside, case lid is housed on the casing, rotating shaft and axle sleeve are equipped with main shield piece and secondary shielding slab outward, on the secondary shielding slab example of primary collimator is installed, secondary collimator is contained in outside the example of primary collimator, axle sleeve, all have linear array on example of primary collimator and the secondary collimator, centrage is the through hole that fan-shaped distribution focuses on the focus of source body, and source body and axle sleeve, example of primary collimator, through hole on the secondary collimator can be aimed at mutually, expose outer rotating shaft one end of casing the locating rod that can rotate with rotating shaft is housed, the limit switch of locating rod is housed on the casing.
Main shield piece and secondary shielding slab are nuclear screening material uranium 238, and example of primary collimator and secondary collimator are high density material tungsten 95.
The useful effect that the present invention has is:
1. the present invention is an independent structures, and volume is little, in light weight, adopts the opposite opened housing seal to install, and is convenient with the main frame mounting or dismounting;
2. rotating shaft of the present invention is by driven by motor, can realize closing radioactive source effectively behind the Rotate 180 °, control easily, shielding is reliable;
3. collimator of the present invention can be changed, and helps treating the focus that all size does not wait.
Description of drawings
Fig. 1 is a structural principle sketch map of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1, casing, 2, the main shield piece, 3, axle sleeve, 4, rotating shaft, 5, source folder, 6, the source body, 7, big bearing, 8, locating rod, 9, the bearing dustproof cover plate, 10, case lid, 11, secondary shielding slab, 12, example of primary collimator, 13, secondary collimator, 14, little bearing, 15, the bearing dustproof cover plate, 16, limit switch, 17, screw hole.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As Fig. 1, shown in Figure 2, the present invention includes: the little bearing 14 of the tank wall both sides in casing 1 and big bearing 7 are supported with step-like rotating shaft 4 respectively, little bearing 14 and the big bearing 7 outer bearing dustproof cover plates 15 that are stamped respectively, 9, axis direction has rectangular slot on rotating shaft 4 elongated cylinder, source folder 5 is housed in the rectangular slot, to be equipped with in the source folder 5 be in line arranges, centrage is the point-foussed source of fan-shaped distribution body 6, axle sleeve 3 is inserted in rotating shaft 4 elongated cylinder outside, case lid 10 is housed on the casing 1, rotating shaft 4 and axle sleeve 3 outer main shield piece 2 and the secondary shielding slabs 11 of being equipped with, on the secondary shielding slab 11 example of primary collimator 12 is installed, secondary collimator 13 is contained in outside the example of primary collimator 12, axle sleeve 3, all have linear array on example of primary collimator 12 and the secondary collimator 13, centrage is the through hole that fan-shaped distribution focuses on the focus of source body 6, and source body 6 and axle sleeve 3, example of primary collimator 12, through hole on the secondary collimator 13 can be aimed at mutually, exposing casing 1 outer rotating shaft 4 one ends is equipped with and can the limit switch 16 of locating rod 8 be housed on the casing 1 with the locating rod 8 of rotating shaft 4 rotations.
Main shield piece 2 and secondary shielding slab 11 are nuclear screening material uranium 238, and example of primary collimator 12 and secondary collimator 13 are high density material tungsten 95.
The outer ends that locating rod 8 is housed of rotating shaft 4 are installed belt pulleys, and belt pulley links to each other with motor by band synchronously, and machine operation will 4 rotations of driven rotary axle, can close radioactive source behind rotating shaft 4 Rotate 180s °; The motor reverse rotation, open radioactive source behind rotating shaft 4 Rotate 180s °, locating rod 8 makes limit switch 16 work can close power machine, radiates the through-hole alignment of body 6 centers and axle sleeve 3, example of primary collimator 12, secondary collimator 13 in a steady stream, and radiation appliance enters therapeutic state.
The background radiation device is installed on the frame by screw hole 17, and the revolution of frame drives radiation appliance focus is scanned irradiation.
Claims (2)
1. rotary closing type gamma ray radiator, it is characterized in that: the tank wall two-side supporting in casing (1) has step-like rotating shaft (4), axis direction has rectangular slot on rotating shaft (4) elongated cylinder, source folder (5) is housed in the rectangular slot, to be equipped with in the source folder (5) be in line arranges, centrage is the point-foussed source of fan-shaped distribution body (6), axle sleeve (3) is inserted in rotating shaft (4) elongated cylinder outside, case lid (10) is housed on the casing (1), outer main shield piece (2) and the secondary shielding slab (11) of being equipped with of rotating shaft (4) and axle sleeve (3), secondary shielding slab (11) is gone up example of primary collimator (12) is installed, secondary collimator (13) is contained in outside the example of primary collimator (12), axle sleeve (3), all have linear array on example of primary collimator (12) and the secondary collimator (13), centrage is the through hole that fan-shaped distribution focuses on source body (6) focus, and source body (6) and axle sleeve (3), example of primary collimator (12), through hole on the secondary collimator (13) can be aimed at mutually, exposing outer rotating shaft (4) one ends of casing (1) is equipped with and can the limit switch (16) of locating rod (8) be housed on the casing (1) with the locating rod (8) of rotating shaft (4) rotation.
2. a kind of rotary closing type gamma ray radiator according to claim 1 is characterized in that: main shield piece (2) and secondary shielding slab (11) are nuclear screening material uranium 238, and example of primary collimator (12) and secondary collimator (13) are high density material tungsten 95.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066484 CN1586670A (en) | 2004-09-15 | 2004-09-15 | Rotary closing type gamma ray radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066484 CN1586670A (en) | 2004-09-15 | 2004-09-15 | Rotary closing type gamma ray radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1586670A true CN1586670A (en) | 2005-03-02 |
Family
ID=34604014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066484 Pending CN1586670A (en) | 2004-09-15 | 2004-09-15 | Rotary closing type gamma ray radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1586670A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447241B (en) * | 2008-12-25 | 2011-04-27 | 西北核技术研究所 | Gamma ray intense source irradiator |
| CN1943806B (en) * | 2006-05-18 | 2012-05-02 | 深圳市华科核医疗技术有限公司 | A kind of medical use irradiation device |
| CN104001269A (en) * | 2014-06-09 | 2014-08-27 | 武汉新奥沃医疗新技术有限公司 | Medical radioactive source device |
| CN105031832A (en) * | 2015-08-27 | 2015-11-11 | 西安大医数码技术有限公司 | Intensity modulated radiation therapy apparatus |
| CN106163613A (en) * | 2014-05-22 | 2016-11-23 | 深圳市奥沃医学新技术发展有限公司 | Multi-source focusing therapy and conformal intensity modulated treatment radiotherapy apparatus and collimator arrangement thereof |
| CN107890612A (en) * | 2017-12-05 | 2018-04-10 | 西安大医数码科技有限公司 | One kind focuses on radiotheraphy device and equipment |
-
2004
- 2004-09-15 CN CN 200410066484 patent/CN1586670A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943806B (en) * | 2006-05-18 | 2012-05-02 | 深圳市华科核医疗技术有限公司 | A kind of medical use irradiation device |
| CN101447241B (en) * | 2008-12-25 | 2011-04-27 | 西北核技术研究所 | Gamma ray intense source irradiator |
| CN106163613A (en) * | 2014-05-22 | 2016-11-23 | 深圳市奥沃医学新技术发展有限公司 | Multi-source focusing therapy and conformal intensity modulated treatment radiotherapy apparatus and collimator arrangement thereof |
| CN104001269A (en) * | 2014-06-09 | 2014-08-27 | 武汉新奥沃医疗新技术有限公司 | Medical radioactive source device |
| CN104001269B (en) * | 2014-06-09 | 2016-07-06 | 武汉新奥沃医疗新技术有限公司 | A kind of medical radiation source apparatus |
| CN105031832A (en) * | 2015-08-27 | 2015-11-11 | 西安大医数码技术有限公司 | Intensity modulated radiation therapy apparatus |
| WO2017032345A1 (en) * | 2015-08-27 | 2017-03-02 | 西安大医数码技术有限公司 | Conformal intensity-modulated radiation therapy device |
| CN109107053A (en) * | 2015-08-27 | 2019-01-01 | 西安大医集团有限公司 | Conformal modulating radiotherapy device |
| CN107890612A (en) * | 2017-12-05 | 2018-04-10 | 西安大医数码科技有限公司 | One kind focuses on radiotheraphy device and equipment |
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| C06 | Publication | ||
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |