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Cosmic ray studies with a low multiplicity neutron monitor


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Quang, Ta Trung 1974 , 'Cosmic ray studies with a low multiplicity neutron monitor', PhD thesis, University of Tasmania.

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This thesis presents some investigations into (i) the effect of
atmospheric variations and seasonal environmental changes on the counting
rates of neutron monitors and the determination of the minimum thickness
of polyethylene or silicon dioxide which may be used as shielding to
minimize these effects, (ii) the design of a low multiplicity neutron
monitor employing silicon dioxide as reflector, moderator and producer
with the following aims: (a) relative freedom from environmental effects,
(b) simpler statistical treatment of data and (c) lower cost and
(iii) the application of this new type of monitor in the studies of
cosmic ray intensity variations with reference to the statistics of
observed counting rates, contribution to the total counting rate made by
the various secondary components, barometric coefficient, atmospheric
pressure and temperature effects, relative response, contribution of
atmospheric multiple neutron production to the observed multiplicity
distribution and cosmic ray scintillation studies in comparison with the
other two conventional IGY- and IQSY-type neutron monitors.

Item Type: Thesis - PhD
Authors/Creators:Quang, Ta Trung
Keywords: Cosmic rays, Neutrons
Copyright Holders: The Author
Copyright Information:

Copyright 1974 the author - The University is continuing to endeavour to trace the copyright
owner(s) and in the meantime this item has been reproduced here in good faith. We
would be pleased to hear from the copyright owner(s).

Additional Information:

Thesis (Ph.D.)--University of Tasmania, 1975. Bibliography: l. 213-221

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