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Calibrating device for thermoluminescence dosimeter

A thermoluminescence dose and calibration device technology, applied in luminescence dosimeters, dosimeters, instruments, etc., can solve problems affecting measurement accuracy and stability, sensitivity changes, zero drift, etc., to achieve relative independence and time. The effect of cross-cutting, improving efficiency, and improving accuracy

Pending Publication Date: 2018-04-06
CHINA NUCLEAR CONTROL SYST ENG
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Problems solved by technology

However, in long-term work, the photomultiplier tube in the detector and the internal circuit of the instrument will cause sensitivity changes and zero point drift, thereby affecting measurement accuracy and stability

Method used

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  • Calibrating device for thermoluminescence dosimeter
  • Calibrating device for thermoluminescence dosimeter

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Embodiment Construction

[0026] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] like figure 1 and figure 2 As shown, a calibration device for a thermoluminescent dosimeter of the present invention includes a main body 1, a display screen 2, a keyboard 3, a drawer 4, a thermoluminescence detector 5, a handle 6, a measuring disc 7, and a calibration light source 8;

[0028] The main body 1 is the overall shape and structure of the device;

[0029] The display screen 2 is used to display the status of the device, including current parameters and measured values;

[0030] The keyboard 3 is used to input the setting parameters and setting date of the device;

[0031] Because the luminescence measurement of the thermoluminescent dosimeter requires complete protection from light to prevent the influence of all ambient light on the measured value, this program adopts a long drawer design, and...

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PUM

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Abstract

The invention belongs to the technical field of thermoluminescence measurement, and especially relates to a calibrating device for a thermoluminescence dosimeter. The calibrating device comprises a main body, a display screen, a keyboard, a drawer, a thermoluminescence detector, a handle, a measuring disc and a calibration light source. A light avoidance requirement in a measuring process is met,and it is ensured that a thermoluminescence probe measures the dosimeter and a standard light source under the same condition. Measuring errors caused by sensitivity change and zero drift of a photomultiplier and circuit during long-term work of apparatuses are corrected, and thus, the measuring accuracy and stability are improved. The dosimeter and standard light source are measured in a relatively independent but time interleaved way, and measurement is more effectively.

Description

technical field [0001] The invention belongs to the technical field of thermoluminescence measurement, and in particular relates to a calibration device for a thermoluminescence dosimeter. Background technique [0002] After the thermoluminescent element is irradiated by radioactivity (β, γ, X-rays, neutrons, etc.), it stores the absorbed energy, and releases the absorbed energy in the form of light when it is heated, and the optical signal it emits It has a linear relationship with the dose, which is the basic principle of thermoluminescence measurement technology. Because the technology has the advantages of wide measurement range, high precision, good linearity, easy portability, and reusability, it has been widely used in personal and environmental dose monitoring, accident dose determination, medical health, geological archaeology and other fields. [0003] The thermoluminescence readout device is a dose readout instrument designed according to the principle of thermol...

Claims

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Application Information

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IPC IPC(8): G01T7/00G01T1/11
CPCG01T1/11G01T7/005
Inventor 陈洁张庆威徐静刘福至马刚
Owner CHINA NUCLEAR CONTROL SYST ENG
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