The response of electrochemically-etched CR-39 to protons of 10 keV to 3 MeV

The response of CR-39 to protons was studied as a function of energy and direction. Using electrochemical etching, without pre-etching, protons from 30 keV to 2.7 MeV were detected with nearly 100% efficiency and 10 keV protons were detected with lower efficiency. The critical angle to the normal, b...

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Bibliographic Details
Published in:International journal of radiation applications and instrumentation. Part D, Nuclear tracks and radiation measurements Nuclear tracks and radiation measurements, 1986, Vol.12 (1), p.649-652
Main Authors: Cross, W.G., Arneja, A., Ing, H.
Format: Article
Language:English
Subjects:
CR-39
directional response
electrochemical etching
neutron response
proton response
Track detectors
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Summary:The response of CR-39 to protons was studied as a function of energy and direction. Using electrochemical etching, without pre-etching, protons from 30 keV to 2.7 MeV were detected with nearly 100% efficiency and 10 keV protons were detected with lower efficiency. The critical angle to the normal, beyond which protons are not detected, is substantially smaller for electrochemical etching than for chemical etching. This angle increases for increasing energy up to 145 keV but decreases again above 400 keV. The neutron response calculated from these results is flat to within ± 30% from 70 keV to 6 MeV and is in reasonable agreement with the measured neutron response.
ISSN:1359-0189
1878-1691
DOI:10.1016/1359-0189(86)90671-0