CN208907917U - A kind of water tank based on thermoluminescent dosemeter measurement dose of radiation - Google Patents

A kind of water tank based on thermoluminescent dosemeter measurement dose of radiation Download PDF

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Publication number
CN208907917U
CN208907917U CN201821463231.6U CN201821463231U CN208907917U CN 208907917 U CN208907917 U CN 208907917U CN 201821463231 U CN201821463231 U CN 201821463231U CN 208907917 U CN208907917 U CN 208907917U
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China
Prior art keywords
thermoluminescent dosemeter
water tank
adapter
thermoluminescent
dosemeter
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CN201821463231.6U
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Inventor
张国前
张书旭
谭剑明
余辉
王锐濠
雷怀宇
周露
彭莹莹
王琳婧
李慧君
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Cancer Center of Guangzhou Medical University
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Cancer Center of Guangzhou Medical University
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Abstract

The utility model discloses a kind of water tanks based on thermoluminescent dosemeter measurement dose of radiation, cylindrical water tank including open top, the vertical thermoluminescent dosemeter adapter being located on the cylindrical water tank central axis, and it is located at the laterally disposed horizontal thermoluminescent dosemeter adapter on the vertical thermoluminescent dosemeter adapter, the water tank bottom, which is equipped with, supports the water tank and the levelling bolt for regulating tank balance.The utility model can complete the measurement of linear accelerator percentage depth dose and different depth Beam profile by being placed on the thermoluminescent dosemeter of different depth and different level position, it is advantageous that structure is simple, good economy performance at low cost, easy to use.

Description

A kind of water tank based on thermoluminescent dosemeter measurement dose of radiation
Technical field
The utility model relates to linear accelerator dose fields of measurement, in particular to a kind of to be measured based on thermoluminescent dosemeter The water tank of dose of radiation.
Background technique
Thermoluminescent dosemeter is a kind of device using thermoluminescence principle record integrated radiation dose.Thermoluminescent dosemeter This dosimeter heating of irradiation, and Photoelectric multiplier tube measurement thermoluminescence output will be received, radiation agent magnitude can be read.It is existing Have and measure linear accelerator in technology off axis than completing with percent depth-dose curves usually using 3 d water tank, price is high Expensive, higher cost, measurement result is more accurate.The most when directly adding three-dimensional data to establish model for planning system for acquiring It is applicable in.But show slightly cumbersome if using 3 d water tank to measure when for simply measurement or Quality Control.
Utility model content
The purpose of the utility model is to provide it is a kind of measurement it is simple, convenient and fast, economic cost is low, be worthy to be popularized based on The water tank of thermoluminescent dosemeter measurement dose of radiation.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of water tank based on thermoluminescent dosemeter measurement dose of radiation, for the measurement of linear accelerator dose, including Water tank, the bottom wall of the water tank are provided with cross hairs, and the water tank is internally provided with horizontal thermoluminescent dosemeter adapter and hangs down Straight thermoluminescent dosemeter adapter, the vertical thermoluminescent dosemeter adapter are located at the central axis of water tank, and the horizontal heat is released Fluorescent Densitomet adapter is horizontally placed on inside water tank, the horizontal thermoluminescent dosemeter adapter and vertical thermoluminescent dosemeter adaptation Device outer surface is provided with the graduation mark of identification length, the centre of the horizontal thermoluminescent dosemeter adapter be provided with circular hole and Locking nut, the vertical thermoluminescent dosemeter adapter may pass through the circular hole and is fixed by locking nut, and the water Flat thermoluminescent dosemeter adapter can be rotated horizontally around vertical thermoluminescent dosemeter adapter, the horizontal Thermoluminescence dating It is respectively arranged with thermoluminescent dosemeter in meter adapter and vertical thermoluminescent dosemeter adapter, is injected in the water tank Water, the water surface elevation of the water are higher than the height of vertical thermoluminescent dosemeter adapter.
Further, the cross hairs of the water tank can be projected with the cross hair in linear accelerator launched field and is overlapped, the water tank For cylindrical glass material, the water tank wall thickness is 0.5cm, and the water tank interior diameter is 40cm, and the tank height is 35cm.
Further, have on the horizontal thermoluminescent dosemeter adapter and vertical thermoluminescent dosemeter adapter according to one The circular hole of set a distance distribution, is provided with the small sleeve that can place thermoluminescent dosemeter in the circular hole.
Further, there are 20 small sleeves on the horizontal thermoluminescent dosemeter adapter, the distance of each sleeve is 0.5cm has 30 small sleeves on the vertical thermoluminescent dosemeter adapter, and the distance of each sleeve is different, from top to bottom 2cm Interior small sleeve is to be spaced apart without being spaced apart greater than after 2cm for 1cm, to meet percentage depth dose measurement needs.
Further, the thermoluminescent dosemeter can carry out dose measurement simultaneously, remove Thermoluminescence dating after detection Meter carries out data and surveys reading.
Further, the thermoluminescent dosemeter includes thermoluminescence element and measuring box, and the thermoluminescence element is glass Thermoluminescence material is wrapped to form cylindrical or spherical structure.
Further, the measuring box is the lucite tube being wrapped in outside thermoluminescence element, and the thermoluminescence element is adopted With the thermoluminescence material of muting sensitivity, the glass of the thermoluminescence element glass excellent using hot property.
Further, the measuring box can be placed in horizontal thermoluminescent dosemeter adapter or vertical thermoluminescent dosemeter is suitable In small sleeve on orchestration.
Further, the bottom of the water tank set there are three regulating tank balance levelling bolt.
Further, the thermoluminescent dosemeter can measure relative dosage, meanwhile, checking the calibration is carried out in thermoluminescence element It also can measure absolute dosages afterwards, the maximum dose depth of accelerator can be obtained by the percent depth-dose curves that measurement obtains.
The utility model has the following beneficial effects:
When the utility model is used, which is laid flat on the operational platform, carries out the pendulum position of water tank first, it will when putting position Tank bottom wall cross hairs is overlapped with the cross hair projection in linear accelerator launched field.Then horizontal thermoluminescent dosemeter adapter On small sleeve in be all put into thermoluminescent dosemeter.Horizontal thermoluminescent dosemeter adapter is rotated simultaneously, makes its figure Line is overlapped with the X-axis of linear accelerator or y-axis, to carry out the measurement than data off axis.Then water, the water surface are injected into water tank Height is not have vertical thermoluminescent dosemeter adapter just.Accelerator can carry out out beam at this time.When measuring off axis than data, Certain hop count such as 50MU out records the reading of thermoluminescent dosemeter on all horizontal thermoluminescent dosemeter adapters.Measure percentage When depth dose data, every certain hop count such as 50MU out is respectively put into not from bottom to top in vertical thermoluminescent dosemeter adapter Same thermoluminescent dosemeter reads respectively and records the result that each thermoluminescent dosemeter receives 50MU irradiation.Finally by all heat The result for releasing Fluorescent Densitomet is normalized to maximum value therein, and percentage depth dose can be obtained and off axis than bent by carrying out data fitting Line.The utility model can complete linear accelerating by being placed on the thermoluminescent dosemeter of different depth and different level position The measurement of device percentage depth dose and different depth Beam profile, it is advantageous that structure is simple, good economy performance at low cost, makes With conveniently.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is further described below in conjunction with attached drawing:
As shown in Figure 1, a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation is used for linear accelerator dose Measurement, including water tank 1, the bottom wall of the water tank 1 be provided with cross hairs 2, and the water tank 1 is internally provided with horizontal thermoluminescence agent Meter adapter 3 and vertical thermoluminescent dosemeter adapter 4, the vertical thermoluminescent dosemeter adapter 4 are located in water tank Mandrel, the horizontal thermoluminescent dosemeter adapter 3 are horizontally placed on inside water tank 1, horizontal 3 He of thermoluminescent dosemeter adapter Vertical 4 outer surface of thermoluminescent dosemeter adapter is provided with the graduation mark of identification length, and the horizontal thermoluminescent dosemeter is suitable The centre of orchestration 3 is provided with circular hole and locking nut 5, the vertical thermoluminescent dosemeter adapter 4 may pass through the circular hole and by Locking nut 5 is fixed, and the horizontal thermoluminescent dosemeter adapter 3 can around vertical thermoluminescent dosemeter adapter 4 into Row rotates horizontally, and is respectively arranged in the horizontal thermoluminescent dosemeter adapter 3 and vertical thermoluminescent dosemeter adapter 4 Thermoluminescent dosemeter 6, water is injected in the water tank 1, and the water surface elevation of the water is higher than vertical thermoluminescent dosemeter adapter 4 Height.
Further, the cross hairs 2 of the water tank 1 can be projected with the cross hair in linear accelerator launched field and is overlapped, the water Case 1 is cylindrical glass material, and 1 wall thickness of water tank is 0.5cm, and 1 interior diameter of water tank is 40cm, 1 height of water tank For 35cm.
Further, have on the horizontal thermoluminescent dosemeter adapter 3 and vertical thermoluminescent dosemeter adapter 4 according to The circular hole of certain distance distribution, is provided with the small sleeve that can place thermoluminescent dosemeter 6 in the circular hole.
Further, there are 20 small sleeves on the horizontal thermoluminescent dosemeter adapter 3, the distance of each sleeve is 0.5cm has 30 small sleeves on the vertical thermoluminescent dosemeter adapter 4, and the distance of each sleeve is different, from top to bottom Small sleeve is to be spaced apart without being spaced apart greater than after 2cm for 1cm in 2cm, to meet percentage depth dose measurement needs.
Further, the thermoluminescent dosemeter 6 can carry out dose measurement simultaneously, remove Thermoluminescence dating after detection Meter 6 carries out data and surveys reading.
Further, the thermoluminescent dosemeter 6 includes thermoluminescence element and measuring box, and the thermoluminescence element is glass Thermoluminescence material is wrapped to form cylindrical or spherical structure.
Further, the measuring box is the lucite tube being wrapped in outside thermoluminescence element, and the thermoluminescence element is adopted With the thermoluminescence material of muting sensitivity, the glass of the thermoluminescence element glass excellent using hot property.
Further, the measuring box can be placed in horizontal thermoluminescent dosemeter adapter 3 or vertical thermoluminescent dosemeter In small sleeve on adapter 4.
Further, the bottom of the water tank 1 set there are three regulating tank balance levelling bolt 7.
Further, the thermoluminescent dosemeter 6 can measure relative dosage, meanwhile, scale school is carried out in thermoluminescence element Also absolute dosages be can measure after standard, the maximum dose depth of accelerator can be obtained by the percent depth-dose curves that measurement obtains.
When the utility model is used, which is laid flat on the operational platform, carries out the pendulum position of water tank first, it will when putting position Tank bottom wall cross hairs is overlapped with the cross hair projection in linear accelerator launched field.Then horizontal thermoluminescent dosemeter adapter On small sleeve in be all put into thermoluminescent dosemeter.Horizontal thermoluminescent dosemeter adapter is rotated simultaneously, makes its figure Line is overlapped with the X-axis of linear accelerator or y-axis, to carry out the measurement than data off axis.Then water, the water surface are injected into water tank Height is not have vertical thermoluminescent dosemeter adapter just.Accelerator can carry out out beam at this time.When measuring off axis than data, Certain hop count such as 50MU out records the reading of thermoluminescent dosemeter on all horizontal thermoluminescent dosemeter adapters.Measure percentage When depth dose data, every certain hop count such as 50MU out is respectively put into not from bottom to top in vertical thermoluminescent dosemeter adapter Same thermoluminescent dosemeter reads respectively and records the result that each thermoluminescent dosemeter receives 50MU irradiation.Finally by all heat The result for releasing Fluorescent Densitomet is normalized to maximum value therein, and percentage depth dose can be obtained and off axis than bent by carrying out data fitting Line.The utility model can complete linear accelerating by being placed on the thermoluminescent dosemeter of different depth and different level position The measurement of device percentage depth dose and different depth Beam profile, it is advantageous that structure is simple, good economy performance at low cost, makes With conveniently.
The above is not limit the technical scope of the present invention, all according to the utility model technical spirit To any modification, equivalent variations and modification made by above embodiment, the model of the technical solution of the utility model is still fallen within In enclosing.

Claims (10)

1. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation, for the measurement of linear accelerator dose, feature Be: including water tank, the bottom wall of the water tank is provided with cross hairs, and it is suitable that the water tank is internally provided with horizontal thermoluminescent dosemeter Orchestration and vertical thermoluminescent dosemeter adapter, the vertical thermoluminescent dosemeter adapter is located at the central axis of water tank, described Horizontal thermoluminescent dosemeter adapter is horizontally placed on inside water tank, and the horizontal thermoluminescent dosemeter adapter and vertical thermal release photo etching Meter adapter outer surface is provided with the graduation mark of identification length, the intermediate setting of the horizontal thermoluminescent dosemeter adapter There are circular hole and locking nut, the vertical thermoluminescent dosemeter adapter passes through the circular hole and is fixed by locking nut, and The horizontal thermoluminescent dosemeter adapter is rotated horizontally around vertical thermoluminescent dosemeter adapter, the horizontal thermoluminescence Thermoluminescent dosemeter, injection in the water tank are respectively arranged in dosimeter adapter and vertical thermoluminescent dosemeter adapter There is water, the water surface elevation of the water is higher than the height of vertical thermoluminescent dosemeter adapter.
2. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 1, it is characterised in that: institute It states the cross hairs of water tank to be overlapped with the cross hair projection in linear accelerator launched field, the water tank is cylindrical glass material, described Water tank wall thickness is 0.5cm, and the water tank interior diameter is 40cm, and the tank height is 35cm.
3. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 1, it is characterised in that: institute Stating has the circular hole being distributed according to certain distance, institute on horizontal thermoluminescent dosemeter adapter and vertical thermoluminescent dosemeter adapter State the small sleeve for being provided in circular hole and placing thermoluminescent dosemeter.
4. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 3, it is characterised in that: institute Stating has 20 small sleeves on horizontal thermoluminescent dosemeter adapter, the distance of each sleeve is 0.5cm, and the vertical thermal releases photo etching There are 30 small sleeves on meter adapter, the distance of each sleeve is different, and small sleeve is that nothing is spaced apart in 2cm from top to bottom, It is spaced apart greater than after 2cm for 1cm, to meet percentage depth dose measurement needs.
5. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 1, it is characterised in that: institute It states thermoluminescent dosemeter while carrying out dose measurement, thermoluminescent dosemeter is removed after detection and carries out data survey reading.
6. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 1, it is characterised in that: institute Stating thermoluminescent dosemeter includes thermoluminescence element and measuring box, and the thermoluminescence element is that thermoluminescence material is wrapped to form by glass Cylindrical or spherical structure.
7. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 6, it is characterised in that: institute Stating measuring box is the lucite tube being wrapped in outside thermoluminescence element, and the thermoluminescence element uses the thermoluminescence material of muting sensitivity Material, the glass of the thermoluminescence element glass excellent using hot property.
8. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 7, it is characterised in that: institute It states in the small sleeve that measuring box is placed on horizontal thermoluminescent dosemeter adapter or vertical thermoluminescent dosemeter adapter.
9. according to claim 1 to described in 8 any one it is a kind of based on thermoluminescent dosemeter measurement dose of radiation water tank, Be characterized in that: the bottom of the water tank set there are three regulating tank balance levelling bolt.
10. a kind of water tank based on thermoluminescent dosemeter measurement dose of radiation according to claim 1, it is characterised in that: The thermoluminescent dosemeter measures relative dosage, meanwhile, absolute dosages are also measured after thermoluminescence element carries out checking the calibration, by The percent depth-dose curves that measurement obtains obtain the maximum dose depth of accelerator.
CN201821463231.6U 2018-09-07 2018-09-07 A kind of water tank based on thermoluminescent dosemeter measurement dose of radiation Active CN208907917U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907983A (en) * 2019-11-29 2020-03-24 成都理工大学 Thermoluminescent dosimeter measuring method for monitoring ionizing radiation dose
CN114594510A (en) * 2022-02-25 2022-06-07 西北核技术研究所 Combined type adjustable charged particle balancing body of thermoluminescent dosimeter and installation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907983A (en) * 2019-11-29 2020-03-24 成都理工大学 Thermoluminescent dosimeter measuring method for monitoring ionizing radiation dose
CN110907983B (en) * 2019-11-29 2022-10-18 成都理工大学 Thermoluminescent dosimeter measuring method for monitoring ionizing radiation dose
CN114594510A (en) * 2022-02-25 2022-06-07 西北核技术研究所 Combined type adjustable charged particle balancing body of thermoluminescent dosimeter and installation method thereof

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