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A Tritium Measurement Device Based on Well-shaped Ionization Chamber

A measuring device and ionization chamber technology, applied in the field of nuclear radiation detection, can solve the problems of increasing the volume and weight of the system, unfavorable portable use, poor compensation effect, etc., achieving good compensation effect, reducing volume and weight, and system structure. tightening effect

Active Publication Date: 2022-07-26
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because four ionization chambers are used, the system becomes complicated, which will increase the volume and weight of the system, which is not conducive to portable use. At the same time, when the radioactive source is closer to the ionization chamber, the compensation effect will also be poor.

Method used

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  • A Tritium Measurement Device Based on Well-shaped Ionization Chamber
  • A Tritium Measurement Device Based on Well-shaped Ionization Chamber
  • A Tritium Measurement Device Based on Well-shaped Ionization Chamber

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiment is only one of the embodiments of the present invention, rather than all the embodiments. .

[0030] like Figure 4 As shown, this embodiment provides a tritium measurement device based on a well-shaped ionization chamber, including a gamma compensation ionization chamber 2 and a tritium measurement ionization chamber 1, the gamma compensation ionization chamber 2 uses the structure of a well-shaped ionization chamber, and the signal is read out separately, The flow-type tritium ionization chamber 1 is a cylindrical ionization chamber, which is installed at the center of the well-shaped ionization chamber.

[0031] Because of its 4π symmetrical structure, the well-shaped ionization chamber has the same measurement effect on γ-rays in...

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Abstract

The invention relates to the technical field of nuclear radiation detection, and provides a tritium measurement device based on a well-shaped ionization chamber, comprising a gamma compensation ionization chamber and a tritium measurement ionization chamber. The flow-type tritium ionization chamber is a cylindrical ionization chamber, which is installed in the center of the well-shaped ionization chamber. The gas flow type tritium ionization chamber of the present invention is installed at the center of the well-shaped ionization chamber, and the signal readout and the well-shaped ionization chamber are independent of each other and do not interfere with each other, which not only reduces the complexity of the system, facilitates processing and assembly, but also avoids coaxiality. The ionization chamber has a problem of unstable readings due to differences in the insulation of the collector cylinders of the two ionization chambers.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a tritium measurement device based on a well-shaped ionization chamber. Background technique [0002] Tritium is an isotope of hydrogen, tritium usually exists in gaseous (HT or T2) and oxide (HTO or T2O) states, it is a low-energy beta radionuclide, the maximum energy of beta particles is 18.6KeV, and its half-life is 12.3 year. Tritium is one of the important nuclides in the primary loop of nuclear reactors, and its concentration is about ~10 10 Bq / m3. Tritium in the primary circuit water can cause radiation hazards to personnel through the leakage of the reactor coolant pressure boundary, the expansion and drainage of the coolant when the reactor is cold started, and the water discharge at the low point of the equipment. Therefore, it is necessary to measure the tritium concentration in the air in real time to ensure that personnel safety. [0003] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/185
CPCG01T1/185
Inventor 闫洋洋江灏黄欣杰沈明明施礼梁云徐卫锋万新峰
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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