II. Investigation of soft radiations by proportional counters
- 1 January 1949
- journal article
- research article
- Published by Taylor & Francis in Journal of Computers in Education
- Vol. 40 (300) , 36-52
- https://doi.org/10.1080/14786444908561209
Abstract
The possibilities of detecting and measuring the energy of soft radiation, particularly β- radiation, γ-radiation and K-capture X-rays, in the range 30 ev. to 150 kev. are discussed and verified experimentally. It is shown that high sensitivity, good resolution and accuracy of energy determination can be obtained through most of this range by combining a suitably designed proportional counter and high gain amplifier of low noise level. The energy required per ion pair formed by electrons of energy between ∼200 ev. and 50 kev. is found to be nearly constant for argon and nitrogen gases. The K-capture radiation of Cu64 and the γ- and X-radiation emitted by Ra D are analysed.Keywords
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