The neutron moderated detector and groundbased cosmic ray modulation studies
Reports appear on modulation studies with the neutron monitor without lead. Some of these studies cast doubt on the reliability of this detector. The stability of the neutron moderated detector (NMD) at Sanae, Antarctic is discussed. The barometric coeficient of the 4NMD for epoch 1976 appears not t...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19850026815 2023-05-15T13:58:36+02:00 The neutron moderated detector and groundbased cosmic ray modulation studies Stoker, P. H. Raubenheimer, B. C. Unclassified, Unlimited, Publicly available Aug 1, 1985 application/pdf http://hdl.handle.net/2060/19850026815 unknown Document ID: 19850026815 Accession ID: 85N35128 http://hdl.handle.net/2060/19850026815 No Copyright CASI SPACE RADIATION SH-9.1-13 19th Intern. Cosmic Ray Conf - Vol. 5; p 502-505; NASA-CP-2376-VOL-5 1985 ftnasantrs 2019-07-21T09:45:09Z Reports appear on modulation studies with the neutron monitor without lead. Some of these studies cast doubt on the reliability of this detector. The stability of the neutron moderated detector (NMD) at Sanae, Antarctic is discussed. The barometric coeficient of the 4NMD for epoch 1976 appears not to differ statistically from the 0.73%/mb of the 3NM64. The monthly averaged hourly counting rate of our 4NMD and 3NM64 correlates very well (correlation coefficient: 98%) over the years from 1974-1984, with the 4NMD showing a 8% larger long term modulation effect than the 3NM64, indicating a difference in sensitivities of the two detectors. From this difference in sensitivities spectra of ground level solar proton events and modulation functions of Forbush decreases are deduced. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic SANAE ENVELOPE(-2.850,-2.850,-71.667,-71.667) |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
SPACE RADIATION |
spellingShingle |
SPACE RADIATION Stoker, P. H. Raubenheimer, B. C. The neutron moderated detector and groundbased cosmic ray modulation studies |
topic_facet |
SPACE RADIATION |
description |
Reports appear on modulation studies with the neutron monitor without lead. Some of these studies cast doubt on the reliability of this detector. The stability of the neutron moderated detector (NMD) at Sanae, Antarctic is discussed. The barometric coeficient of the 4NMD for epoch 1976 appears not to differ statistically from the 0.73%/mb of the 3NM64. The monthly averaged hourly counting rate of our 4NMD and 3NM64 correlates very well (correlation coefficient: 98%) over the years from 1974-1984, with the 4NMD showing a 8% larger long term modulation effect than the 3NM64, indicating a difference in sensitivities of the two detectors. From this difference in sensitivities spectra of ground level solar proton events and modulation functions of Forbush decreases are deduced. |
format |
Other/Unknown Material |
author |
Stoker, P. H. Raubenheimer, B. C. |
author_facet |
Stoker, P. H. Raubenheimer, B. C. |
author_sort |
Stoker, P. H. |
title |
The neutron moderated detector and groundbased cosmic ray modulation studies |
title_short |
The neutron moderated detector and groundbased cosmic ray modulation studies |
title_full |
The neutron moderated detector and groundbased cosmic ray modulation studies |
title_fullStr |
The neutron moderated detector and groundbased cosmic ray modulation studies |
title_full_unstemmed |
The neutron moderated detector and groundbased cosmic ray modulation studies |
title_sort |
neutron moderated detector and groundbased cosmic ray modulation studies |
publishDate |
1985 |
url |
http://hdl.handle.net/2060/19850026815 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-2.850,-2.850,-71.667,-71.667) |
geographic |
Antarctic SANAE |
geographic_facet |
Antarctic SANAE |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
CASI |
op_relation |
Document ID: 19850026815 Accession ID: 85N35128 http://hdl.handle.net/2060/19850026815 |
op_rights |
No Copyright |
_version_ |
1766266965841674240 |