Tritium-measuring method and equipment

A technology of stainless steel barrels and insulators, applied in measurement devices, radiation measurement, X/γ/cosmic radiation measurement, etc., can solve the problem of long measurement cycle, and achieve the effect of reducing radioactive waste, fast speed, and avoiding deformation of ionization chamber.

Inactive Publication Date: 2008-03-26
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
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Problems solved by technology

However, this method can only measure the amount of tritium water, and its measurement period is long, so it cannot provide the content of tritium in the air quickly and in time

Method used

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  • Tritium-measuring method and equipment
  • Tritium-measuring method and equipment
  • Tritium-measuring method and equipment

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Experimental program
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Embodiment Construction

[0031] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing

[0032] In Fig. 1, the tritium measuring device of the present invention includes a current collector 1, an open stainless steel barrel 7, a variable diameter protection ring 2, a high voltage electrode and an insulator, and the bottom surface of the open stainless steel barrel 7 is open There is a hole for placing the current collector 1, the insulator, and the variable-diameter protection ring 2. The current collector 1 is placed in the center of the hole on the bottom surface of the stainless steel barrel 7. The current collector 1 is provided with an external weak current electrometer. Interface; the periphery of the current collector 1 is provided with a ring-shaped insulator 5; the periphery of the insulator 5 is provided with a ring-shaped variable-diameter protection ring 2, and the periphery of the variable-diameter protection ring 2 is prov...

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Abstract

This invention discloses a kind of tritium determination instrument and tritium determination method. The tritium determination instrument includes the current collection electrode, tapered guard ring and open stainless steel barrel, there are several holes set in the stainless steel barrel. The test gas can diffuse freely into the stainless steel barrel, determines the concentration of tritium in suction pressure and ordinary pressure. The determination speed of the method to determine the concentration of tritium in this invention is fast, it can reduce the radwaste in the monitor process of determining the concentration of tritium. The structure of the tritium determination instrument is simple, the determination method is reliable, it is easy to apply.

Description

technical field [0001] The invention belongs to the technical field of measuring the specific activity of radioactive tritium in air by using an ionization chamber device, and in particular relates to a tritium measuring device and a tritium measuring method. Background technique [0002] Among the isotopes of hydrogen, only tritium is unstable. The maximum energy of tritium is 18keV, and its average energy is 5.65keV. It undergoes beta decay with a half-life of 12.33 years. Tritium can directly or indirectly undergo chemical reactions with some containing materials through isotope exchange. These reactions are stronger than those caused by hydrogen, because the beta radiation of tritium can destroy the chemical bonds of these materials and cause radiolysis catalysis. It is possible to cause corrosion to the containing material, or cause degradation of material properties (brittle cracks, aging). Moreover, tritium can also enter the human body through inhalation, ingestion,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/178G01T7/02
Inventor 常瑞敏李烨陈志林蒋聪明谭昭怡吴冠银
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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