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Comparison of Pd/D co-deposition and DT neutron generated triple tracks observed in CR-39 detectors

Published online by Cambridge University Press:  07 July 2010

P. A. Mosier-Boss ,
J. Y. Dea ,
L. P.G. Forsley ,
M. S. Morey ,
J. R. Tinsley ,
J. P. Hurley  and
F. E. Gordon
P. A. Mosier-Boss*
Affiliation:
SPAWAR Systems Center Pacific, Code 71730, San Diego, CA, 92152, USA
J. Y. Dea
Affiliation:
SPAWAR Systems Center Pacific, Code 71730, San Diego, CA, 92152, USA
L. P.G. Forsley
Affiliation:
JWK International Corp., Annandale, VA, 22003, USA
M. S. Morey
Affiliation:
National Security Technologies, LLC, Special Technologies Laboratory, Santa Barbara, CA, 93111, USA
J. R. Tinsley
Affiliation:
National Security Technologies, LLC, Special Technologies Laboratory, Santa Barbara, CA, 93111, USA
J. P. Hurley
Affiliation:
National Security Technologies, LLC, Special Technologies Laboratory, Santa Barbara, CA, 93111, USA
F. E. Gordon
Affiliation:
SPAWAR Systems Center Pacific, Retired, San Diego, CA, 92122, USA
*
pam.boss@navy.mil
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Abstract

Solid state nuclear track detectors (SSNTDs), such as CR-39, have been used to detect energetic charged particles and neutrons. Of the neutron and charged particle interactions that can occur in CR-39, the one that is the most easily identifiable is the carbon breakup reaction. The observation of a triple track, which appears as three alpha particle tracks breaking away from a center point, is diagnostic of the 12C(n, n’)3α carbon breakup reaction. Such triple tracks have been observed in CR-39 detectors that have been used in Pd/D co-deposition experiments. In this communication, triple tracks in CR-39 detectors observed in Pd/D co-deposition experiments are compared with those generated upon exposure to a DT neutron source. It was found that both sets of tracks were indistinguishable. Both symmetric and asymmetric tracks were observed. Using linear energy transfer (LET) curves and track modeling, the energy of the neutron that created the triple track can be estimated.

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Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 51 , Issue 2 , August 2010 , 20901
Copyright
© EDP Sciences, 2010

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