Method and device for measuring powder environmental sample alpha radionuclide
A technology for environmental samples and alpha radioactivity, which is used in measurement devices, radiation measurement, X-ray energy spectrum distribution measurement, etc. Effect
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[0029] The present invention will be further described below in conjunction with the drawings and specific embodiments.
[0030] figure 1 Schematic diagram of the measurement room structure. The measurement chamber structure includes: (1) mesh cylindrical chamber, (2) sample diaphragm, (3) sample delivery drawer, (4) sample box, (5) air inlet, (6) air outlet, (7) measurement Outdoor shell. The sample delivery drawer is located in the lower part of the chamber, and the sample box is placed on the sample delivery drawer. Three mesh cylindrical chambers are arranged horizontally and are located in the upper part of the sample box.
[0031] The working gas in the measurement chamber can be argon methane gas, which is composed of a mixed gas of 90% argon and 10% methane. As a reactive gas, argon is mainly used to generate ionization discharge after interacting with alpha particles. As a quenching gas, methane's main function is to effectively absorb the photons generated in the aval...
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