CN202267747U - Thermoluminescent dosemeter support - Google Patents
Thermoluminescent dosemeter support Download PDFInfo
- Publication number
- CN202267747U CN202267747U CN 201120324740 CN201120324740U CN202267747U CN 202267747 U CN202267747 U CN 202267747U CN 201120324740 CN201120324740 CN 201120324740 CN 201120324740 U CN201120324740 U CN 201120324740U CN 202267747 U CN202267747 U CN 202267747U
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- jack
- fixed leg
- tld
- radion
- support
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Abstract
The utility model relates to a thermoluminescent dosemeter support, including a base plate, a TLD fixed column, a radiation particle fixed column and a particle protective cover. The base plate is provided with a central radiation particle fixed column jack and peripheral several TLD fixed column jacks; the lower end of the radiation particle fixed column is inserted in the central jack of the base plate, and the upper end is provided with a radiation particle arrangement mechanism; the particle protective cover is detachably covered on the radiation particle fixed column; and the TLD fixed column is arranged around the radiation particle fixed column, wherein the lower end is inserted in the corresponding jack, and the upper end is be provided with the TLD arrangement mechanism. In the utility model, through the improvement of the structure, the arrangement of the TLD element for test is more flexible, and simultaneously, a plurality of test modes are provided through different arrangement modes of the TLD fixed column, the test result is guaranteed to be more accurate, and the reliability in application is raised.
Description
Technical field
The utility model relates to the utility appliance of radiation dose quality control and quality assurance in the medical radiotherapy, is specifically related to thermoluminescent dosemeter (TLD) support.
Background technology
The accuracy of target area metering is depended in radiocurable success or not to a great extent; Because target area metering uncertainty surpass 5 percent just possibly cause the radiation therapy biological effect change; In therapeutic process, the error of radiation metering mainly comes from the following aspects: the error of (1) therapy apparatus output quantity; (2) output quantity under the reference conditions converts the error in dipping under the non-reference conditions to; (3) from the error of radiation therapy designs time prescription metering converts into treatment target area metering; (4) patient's pendulum, positioning error etc.Wherein, the metering that converts under the non-reference conditions of the measurement of the output quantity of therapy apparatus and the output quantity under the reference conditions is particularly important in the radiocurable quality control (QC) at each radiation therapy hospital or center and quality assurance (QA).
At present, the method that measurement adopts mainly is thermoluminescent dosemeter (TLD) mensuration, and thermoluminescent dosemeter has following metrological advantage: wide metrology applications scope is arranged, from 10
-7-10
-5The Gy linear response; The favorable tissue equivalence is arranged; Can make the element of various sizes and shape, in use not receive the restriction of locus; Can be at 0-10
9Measure long-term cummulative metering, no dependence in the Gy/S dose rate scope; Measuring accuracy is better than 3%; The thermoluminescence material is insensitive to environmental factor; Thermoluminescent dosemeter is read conveniently, calculates simply, can realize large-scale measurement, and the result is provided at any time.
China CN201609551U utility model discloses a kind of thermoluminescent dosemeter dosage comparison irradiation support, though this support is installed, the location is easy, can not satisfy the measurement under some particular cases, and its measuring accuracy also can not get good assurance.
The utility model content
The purpose of the utility model is to provide a kind of novel, thermoluminescent dosemeter support more accurately and reliably.The technical scheme that realizes above-mentioned purpose is following:
A kind of thermoluminescent dosemeter support is characterized in that: comprise base plate, TLD fixed leg, radion fixed leg and particle protective cover; Offer radion fixed leg jack and some TLD fixed leg jacks all around of central authorities on the base plate; Radion fixed leg lower end is plugged in the jack of base plate central authorities, and the upper end is provided with the radion Placement Cell; The particle protective cover is located on the radion fixed leg separably; The TLD fixed leg is provided with around the radion fixed leg, and its lower end is plugged in the corresponding jack, and the upper end is provided with the TLD Placement Cell.
Said TLD fixed leg lower end is provided with directed pin, and said jack sidewall offers guide slot, and directed pin embedded in the guide slot when TLD fixed leg lower end was plugged in the said jack.
Said jack is different according to the direction of its guide slot; Be divided into first kind jack and second type of jack; First kind jack is evenly distributed on around the radion fixed leg with mode gradually far away, and the direction of the guide slot of first kind jack is the tangential direction of jack place circle; Second type of jack is evenly distributed on around the radion fixed leg with equidistant mode, and the relative radion fixed leg of the direction of the guide slot of second type of jack towards increasing progressively distribution with the 0-360 degree.
Said radion Placement Cell is the positioning pipe that radion fixed leg top is provided with.
Said TLD Placement Cell is the accepting groove that is opened in TLD fixed leg upper side.
Said thermoluminescent dosemeter support also comprises handle, is fixedly installed on the plate upper surface two ends.
The utility model is through the improvement of structure, and the setting of the feasible TLD element that is used to test is more flexible, and the different set-up modes through the TLD fixed leg provide multiple test mode simultaneously, guarantees that measurement result is more accurate, improves the reliability in using.
Description of drawings
The exploded view of the thermoluminescent dosemeter support that Fig. 1 provides for embodiment.
The detailed schematic of TLD fixed leg in the thermoluminescent dosemeter support that Fig. 2 provides for embodiment.
The detailed schematic of radion fixed leg in the thermoluminescent dosemeter support that Fig. 3 provides for embodiment.
The assembly drawing of the thermoluminescent dosemeter support that Fig. 4 provides for embodiment.
The distribution detail view of jack on the base plate in the thermoluminescent dosemeter support that Fig. 5 provides for embodiment.
Embodiment
As shown in Figure 1; The thermoluminescent dosemeter support that present embodiment provides comprises: base plate 11, some TLD fixed legs 12, radion fixed leg 13, particle protective cover 14, handle 15, directed pin 16 also comprise thermoluminescent dosemeter (being TLD) 120 and radion 130 in addition among Fig. 1.Two grip 15 are fixedly installed on base plate 11 upper surface two ends, and base plate 11 is attend central authorities and offered particle fixed leg jack 111, offer some TLD fixed leg jacks 112 around central jack.
As shown in Figure 2; Each root TLD fixed leg 12 bottom is columniform Plug Division 121, and top is flat sheet support portion 122, offers directed pin pilot hole 123 on the Plug Division 121; One side of support portion 122 offers TLD accepting groove 124; In conjunction with shown in Figure 1, directed pin 16 is fixedly installed on directed pin pilot hole 123 places during use, and thermoluminescent dosemeter 120 is arranged in this accepting groove 124.As shown in Figure 3, radion fixed leg 13 same bottoms are columniform Plug Division 131, and the top fixedly installs a positioning pipe 132, and in conjunction with shown in Figure 1, radion 130 is arranged in this positioning pipe 132 during use.Particle protective cover 14 is located on the radion fixed leg 13 separably.
In order to realize measurement result more accurately, need to thermoluminescent dosemeter 120 towards carrying out reasonable Arrangement, present embodiment be exactly through control TLD fixed leg 12 towards limit thermoluminescent dosemeter 120 on it towards.Please continue referring to Fig. 1, the sidewall of each jack offers guide slot 113, and this guide slot 113 is used to cooperate said directed pin 16, thus restriction be arranged on TLD fixed leg 12 and radion fixed leg 13 on the jack towards.During assembling, directed pin 16 is fixedly installed on the Plug Division 121 of TLD fixed leg 12 bottoms, and in the Plug Division 121 when inserting in the jacks, directed pin snaps in the guide slot 113, and the thermoluminescent dosemeter support that assembles is seen shown in Figure 4.
In the present embodiment; Direction according to the radial distance of jack and radion fixed leg and guide slot thereof is different; Jack is divided into first kind jack and second type of jack, and first kind jack is seen the A1-A12 among Fig. 5, and first kind jack A1-A12 is evenly distributed on around the radion fixed leg 13 with mode gradually far away; And the direction of the guide slot of first kind jack A1-A12 is the tangential direction of jack place circle, makes each TLD fixed leg 12 all over against radion fixed leg 13; Second type of jack seen the B1-B6 among Fig. 4, and second type of jack B1-B6 is evenly distributed on around the radion fixed leg 13 with equidistant mode, and the relative radion fixed leg of the direction of the guide slot of second type of jack B1-B6 towards increasing progressively distribution with the 0-360 degree.
During use,, be divided into two kinds of method of testings, promptly use first kind jack to test or use second type of jack to test the synoptic diagram that mode shown in Figure 4 very adopts first kind jack to test according to the type of jack.
Above embodiment only is used for fully open and unrestricted the utility model; It is understandable that: can not offer guide slot on the said jack; As long as when assembling can accurate pointing through other modes; The perhaps non-cylindrical of jack hole own, for example it is a slot, can play directed effect equally.In addition, being used for fixing the mechanism that is used for fixing radion 130 on mechanism and the radion fixed leg 13 of thermoluminescent dosemeter 120 on the TLD fixed leg 12 also can be other conventional approaches.
Claims (6)
1. a thermoluminescent dosemeter support is characterized in that: comprise base plate, TLD fixed leg, radion fixed leg and particle protective cover; Offer radion fixed leg jack and some TLD fixed leg jacks all around of central authorities on the base plate; Radion fixed leg lower end is plugged in the jack of base plate central authorities, and the upper end is provided with the radion Placement Cell; The particle protective cover is located on the radion fixed leg separably; The TLD fixed leg is provided with around the radion fixed leg, and its lower end is plugged in the corresponding jack, and the upper end is provided with the TLD Placement Cell.
2. thermoluminescent dosemeter support according to claim 1 is characterized in that: said TLD fixed leg lower end is provided with directed pin, and said jack sidewall offers guide slot, and directed pin embedded in the guide slot when TLD fixed leg lower end was plugged in the said jack.
3. thermoluminescent dosemeter support according to claim 2; It is characterized in that: said jack is different according to the direction of its guide slot; Be divided into first kind jack and second type of jack; First kind jack is evenly distributed on around the radion fixed leg with mode gradually far away, and the direction of the guide slot of first kind jack is the tangential direction of jack place circle; Second type of jack is evenly distributed on around the radion fixed leg with equidistant mode, and the relative radion fixed leg of the direction of the guide slot of second type of jack towards increasing progressively distribution with the 0-360 degree.
4. according to any described thermoluminescent dosemeter support of claim 1 to 3, it is characterized in that: said radion Placement Cell is the positioning pipe that radion fixed leg top is provided with.
5. according to any described thermoluminescent dosemeter support of claim 1 to 3, it is characterized in that: said TLD Placement Cell is the accepting groove that is opened in TLD fixed leg upper side.
6. according to any described thermoluminescent dosemeter support of claim 1 to 3, it is characterized in that: also comprise handle, be fixedly installed on the plate upper surface two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120324740 CN202267747U (en) | 2011-08-31 | 2011-08-31 | Thermoluminescent dosemeter support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120324740 CN202267747U (en) | 2011-08-31 | 2011-08-31 | Thermoluminescent dosemeter support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267747U true CN202267747U (en) | 2012-06-06 |
Family
ID=46158536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120324740 Expired - Lifetime CN202267747U (en) | 2011-08-31 | 2011-08-31 | Thermoluminescent dosemeter support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341239A (en) * | 2013-06-14 | 2013-10-09 | 黑龙江省科学院技术物理研究所 | Method for measuring influences of imbedding 125I particle source in support or catheter on dose distribution |
| CN103424764A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN105068105A (en) * | 2015-08-18 | 2015-11-18 | 浙江建安检测研究院有限公司 | Leakage radiation testing method for accelerator head |
-
2011
- 2011-08-31 CN CN 201120324740 patent/CN202267747U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341239A (en) * | 2013-06-14 | 2013-10-09 | 黑龙江省科学院技术物理研究所 | Method for measuring influences of imbedding 125I particle source in support or catheter on dose distribution |
| CN103424764A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN103424764B (en) * | 2013-07-29 | 2015-06-17 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN105068105A (en) * | 2015-08-18 | 2015-11-18 | 浙江建安检测研究院有限公司 | Leakage radiation testing method for accelerator head |
| CN105068105B (en) * | 2015-08-18 | 2017-09-26 | 浙江建安检测研究院有限公司 | Accelerator head leakage rediation method of testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |