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- Title
An ion pulse ionization chamber for spectrometric measurements of low surface α activities.
- Authors
Gavrilyuk, Yu. M.; Gangapshev, A. M.; Kazalov, V. V.; Kuz'minov, V. V.; Panasenko, S. I.; Ratkevich, S. S.
- Abstract
The design of a pulse ionization chamber for measuring the surface αactivity of various samples is described. When used together with the appropriate methods for recording and processing the signals, a low-background spectrometer based on this chamber is able to ensure a high sensitivity in direct measurements of ultralow surface α activities. This approach offers a solution to the problem of controlling superpure materials used in detectors for studying rare nuclear processes with a broken equilibrium in the decay chains of the uranium and thorium series. A procedure for modeling the shape of the current pulses according to the orientation of α-particle tracks and their location inside the chamber is described. Results obtained with an α source, as well as with copper and VM2000 light-reflecting film samples, are presented.
- Subjects
IONIZATION (Atomic physics); SPECTROMETERS; SPECTROMETRY; SPECTRUM analysis; URANIUM; THORIUM
- Publication
Instruments & Experimental Techniques, 2009, Vol 52, Issue 2, p173
- ISSN
0020-4412
- Publication type
Article
- DOI
10.1134/S0020441209020055