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Direct Determinatio...
Direct Determination of a Bare Neutron Counter Yield Function
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- Nuntiyakul, W. (author)
- Chiang Mai Univ, Fac Sci, Dept Phys & Mat Sci, Chiang Mai, Thailand; Chiang Mai Univ, Fac Sci, Res Ctr Phys & Astron, Chiang Mai, Thailand; Natl Astron Res Inst Thailand NARIT, Chiang Mai, Thailand
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- Mangeard, P-S (author)
- Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
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- Ruffolo, D. (author)
- Natl Astron Res Inst Thailand NARIT, Chiang Mai, Thailand; Mahidol Univ, Fac Sci, Dept Phys, Bangkok, Thailand
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- Evenson, P. (author)
- Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
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- Bieber, J. W. (author)
- Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
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- Clem, J. (author)
- Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
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- Hallgren, Allan, 1951- (author)
- Uppsala universitet,Högenergifysik
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- Madsen, J. (author)
- Univ Wisconsin, Wisconsin IceCube Particle Astrophys Ctr, Madison, WI USA
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- Pyle, R. (author)
- Pyle Consulting Grp Inc, St Charles, IL USA
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- Sáiz, A. (author)
- Mahidol Univ, Fac Sci, Dept Phys, Bangkok, Thailand
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- Tilav, S. (author)
- Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
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(creator_code:org_t)
- 2020
- 2020
- English.
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In: Journal of Geophysical Research - Space Physics. - 2169-9380 .- 2169-9402. ; 125:4
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Ground-based neutron counters are a standard tool for detecting atmospheric showers from GeV range primary cosmic rays of either solar or galactic origin. Bare neutron counters, a type of lead-free neutron monitor, function much like standard neutron monitors but have different yield functions primarily because they are more sensitive to neutrons of lower energy. When operated together with standard monitors, the different yield functions allow estimates to be made of the energy spectrum of galactic or solar particles. In 2010 a new array of 12 bare neutron detectors was installed at the South Pole to operate together with the neutron monitor there. Prior to installation, two of the detectors were operated on a ship that traveled from Sweden to Antarctica and back from November 2009 to April 2010. The purpose of this latitude survey was to use Earth's magnetic field as a spectrometer, blocking cosmic rays below the local cutoff rigidity (momentum per unit charge), from which we determined the response function versus rigidity of these bare counters. By comparing that measured response function to direct measurements of the cosmic ray spectrum taken by the PAMELA spacecraft, we were able to make a direct determination of the yield function for these detectors.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Nuntiyakul, W.
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Mangeard, P-S
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Ruffolo, D.
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Evenson, P.
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Bieber, J. W.
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Clem, J.
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show more...
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Hallgren, Allan, ...
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Madsen, J.
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Pyle, R.
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Sáiz, A.
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Tilav, S.
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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Journal of Geoph ...
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Uppsala University