RADIOACTIVITY AND GEOMETRICAL DISTRIBUTION MEASUREMENTS OF ALPHA-EMITTER SPECIMENS WITH THE IMAGING PLATE

被引：26

作者：

MORI, C

MATSUMURA, A

机构：

[1] Department of Nuclear Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-01, Furo-cho

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 312卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(92)90123-L

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Imaging plate detectors, having a sensitivity of about a hundred times greater than that of conventional X-ray films, are finding extension into many fields as a two-dimensional position detector for radiations. The imaging plate has a large area, of 20 cm x 25 cm, or even larger 35 cm x 43 cm, and a spatial resolution of about 100-mu-m x 100-mu-m (i.e. a pixel). The sensitivity of the plate to alpha-rays was investigated here; even a single incident alpha-ray can be detected and the signal output was found to be linear up to at least thirty incident alpha-rays per pixel. Plutonium fine particles in the environmental air of a nuclear fuel processing cell were collected on a filter paper. The plate was then exposed to alpha-rays emitted from the filter and the diameters of the fine particles could be determined by the output signal intensity from the plate.

引用

页码：39 / 42

页数：4

共 15 条

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