Thermoluminescent dosimeter

Abstract

The invention belongs to the technical field of detection, and specifically relates to a thermoluminescent dosimeter. A conical thermal chamber is formed on the bottom of a mainboard, and a dust coveris fixed on an upper part of the conical thermal chamber; a motor frame and a transition board are respectively fixed on a left side and a right side of the bottom of the mainboard, a drawing plate is inserted into a groove of the motor frame, and a sample disc is placed on the drawing plate; two deep groove ball bearings are fixed in grooves of the dust cover and the mainboard separately; a large gear is matched with the mainboard through a deep groove ball bearings; a transformer is installed at the bottom of the transition board; a horizontal stepping motor is installed at a rear part of the transition board; a fixing bracket and the motor frame are located and installed by screws, a linear stepping motor is installed in a locating groove at the bottom of the motor frame, a copper block is installed in a fixing groove at an upper part of the motor frame; a heating disc is installed on the copper block; a probe is installed on the dust cover; and a knob is installed in a fixing groove hole at a rear part of the mainboard and is matched with teeth of the large gear. The thermoluminescent dosimeter can realize automatic feeding of a sample, and automatic lifting and heating; and the sample can be pushed out automatically after measurement, thus detection effect can be improved.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a thermoluminescent dosimeter. Background technique [0002] Thermoluminescence dosimeters reflect the radiation dose through the thermoluminescence intensity of certain substances caused by radiation. They are widely used in various fields of clinical dosimetry, mostly used to detect personal doses, and are also used in environmental testing to detect environmental The gamma dose level in . [0003] The thermoluminescent dosimeters currently on the market have the following defects: [0004] 1. The degree of automation of domestic products is low, there are only a few semi-automatic products, and the detection efficiency is low; [0005] 2. Most products have a single heating form, and the heating is done by integrating the galvanic wire into the pumping plate for heating; [0006] 3. Nitrogen, which affects one of the detection accuracy, is not introduced; [...

AI Technical Summary

Problems solved by technology

[0004] 1. The degree of automation of domestic products is low, there are only a few semi-automatic products, and the detection efficiency is low;

[0005] 2. Most products have a single heating form, and the heating is done by integrating the galvanic wire into the pumping plate for heating;

[0006] 3. Nitrogen, which affects one of the detection accuracy, is not introduced;

[0007] 4. The optical filter, one of the factors affecting the detection accuracy, is a single piece, basically no maintenance;

[0008] 5. The structural size is too large, the quality is heavy, and it is inconvenient to disassemble and maintain

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