12-20 July 2017
BEXCO
Asia/Seoul timezone
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Contribution

BEXCO - Room C(108)

[SH051] A mini neutron monitor: The effect of instrumental temperature and each structural component

Speakers

  • Helena KRUGER

Primary authors

  • Helena KRUGER (Centre for Space Research, North-West University, South Africa)

Co-authors

  • Petrus Paulus KRUEGER (Centre for Space Research, North-West University, South Africa)
  • David MALAN (Centre for Space Research, North-West University, South Africa)
  • Corrie DIEDERICKS (Centre for Space Research, North-West University, South Africa)

Description

Two calibration neutron monitors were built in the beginning of this century to calibrate the worldwide neutron monitors. Since 2011, the idea changed to mini neutron monitors that can be used in their own right, with updated new electronics. During 2016 the electronics head were redesigned to be completely modular, as cheap as possible, but still reliable, and in such a way that they can also be used to upgrade the electronics of older stationary neutron monitors. Neutron monitors have quite large instrumental temperature sensitivities [Krüger et al, 2008]. Tests are performed to obtain the temperature coefficient of the newest mini neutron monitor model. Further, the effect of each structural component (reflector, lead producer and moderator) on the count rates is determined experimentally for two mini neutron monitors, one with a BF3 counter tube and another one with a 3He tube. The results are reported.