A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector
PoGOLino is a scintillator-based neutron detector. Its main purpose is to provide data on the neutron flux in the upper stratosphere at high latitudes at thermal and nonthermal energies for the PoGOLite instrument. PoGOLite is a balloon borne hard X-ray polarimeter for which the main source of backg...
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ftdatacite:10.48550/arxiv.1311.5531 2023-05-15T17:45:00+02:00 A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector Kole, Merlin Fukazawa, Yasushi Fukuda, Kentaro Ishizu, Sumito Jackson, Miranda Kamae, Tune Kawaguchi, Noriaki Kawano, Takafumi Kiss, Mózsi Moretti, Elena Salinas, Maria Fernanda Muñoz Pearce, Mark Rydström, Stefan Takahashi, Hiromitsu Yanagida, Takayuki 2013 https://dx.doi.org/10.48550/arxiv.1311.5531 https://arxiv.org/abs/1311.5531 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM Instrumentation and Detectors physics.ins-det FOS Physical sciences Preprint Article article CreativeWork 2013 ftdatacite https://doi.org/10.48550/arxiv.1311.5531 2022-04-01T13:12:47Z PoGOLino is a scintillator-based neutron detector. Its main purpose is to provide data on the neutron flux in the upper stratosphere at high latitudes at thermal and nonthermal energies for the PoGOLite instrument. PoGOLite is a balloon borne hard X-ray polarimeter for which the main source of background stems from high energy neutrons. No measurements of the neutron environment for the planned flight latitude and altitude exist. Furthermore this neutron environment changes with altitude, latitude and solar activity, three variables that will vary throughout the PoGOLite flight. PoGOLino was developed to study the neutron environment and the influences from these three variables upon it. PoGOLino consists of two Europium doped Lithium Calcium Aluminium Fluoride (Eu:LiCAF) scintillators, each of which is sandwiched between 2 Bismuth Germanium Oxide (BGO) scintillating crystals, which serve to veto signals produced by gamma-rays and charged particles. This allows the neutron flux to be measured even in high radiation environments. Measurements of neutrons in two separate energy bands are achieved by placing one LiCAF detector inside a moderating polyethylene shield while the second detector remains unshielded. The PoGOLino instrument was launched on March 20th 2013 from the Esrange Space Center in Northern Sweden to an altitude of 30.9 km. A description of the detector design and read-out system is presented. A detailed set of simulations of the atmospheric neutron environment performed using both PLANETOCOSMICS and Geant4 will also be described. The comparison of the neutron flux measured during flight to predictions based on these simulations will be presented and the consequences for the PoGOLite background will be discussed. : Presented at 2013 IEEE Nuclear Science Symposium, Seoul, Korea. October 27 - November 2, 2013 Report Northern Sweden DataCite Metadata Store (German National Library of Science and Technology) Esrange ENVELOPE(21.117,21.117,67.883,67.883) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Instrumentation and Methods for Astrophysics astro-ph.IM Instrumentation and Detectors physics.ins-det FOS Physical sciences |
spellingShingle |
Instrumentation and Methods for Astrophysics astro-ph.IM Instrumentation and Detectors physics.ins-det FOS Physical sciences Kole, Merlin Fukazawa, Yasushi Fukuda, Kentaro Ishizu, Sumito Jackson, Miranda Kamae, Tune Kawaguchi, Noriaki Kawano, Takafumi Kiss, Mózsi Moretti, Elena Salinas, Maria Fernanda Muñoz Pearce, Mark Rydström, Stefan Takahashi, Hiromitsu Yanagida, Takayuki A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
topic_facet |
Instrumentation and Methods for Astrophysics astro-ph.IM Instrumentation and Detectors physics.ins-det FOS Physical sciences |
description |
PoGOLino is a scintillator-based neutron detector. Its main purpose is to provide data on the neutron flux in the upper stratosphere at high latitudes at thermal and nonthermal energies for the PoGOLite instrument. PoGOLite is a balloon borne hard X-ray polarimeter for which the main source of background stems from high energy neutrons. No measurements of the neutron environment for the planned flight latitude and altitude exist. Furthermore this neutron environment changes with altitude, latitude and solar activity, three variables that will vary throughout the PoGOLite flight. PoGOLino was developed to study the neutron environment and the influences from these three variables upon it. PoGOLino consists of two Europium doped Lithium Calcium Aluminium Fluoride (Eu:LiCAF) scintillators, each of which is sandwiched between 2 Bismuth Germanium Oxide (BGO) scintillating crystals, which serve to veto signals produced by gamma-rays and charged particles. This allows the neutron flux to be measured even in high radiation environments. Measurements of neutrons in two separate energy bands are achieved by placing one LiCAF detector inside a moderating polyethylene shield while the second detector remains unshielded. The PoGOLino instrument was launched on March 20th 2013 from the Esrange Space Center in Northern Sweden to an altitude of 30.9 km. A description of the detector design and read-out system is presented. A detailed set of simulations of the atmospheric neutron environment performed using both PLANETOCOSMICS and Geant4 will also be described. The comparison of the neutron flux measured during flight to predictions based on these simulations will be presented and the consequences for the PoGOLite background will be discussed. : Presented at 2013 IEEE Nuclear Science Symposium, Seoul, Korea. October 27 - November 2, 2013 |
format |
Report |
author |
Kole, Merlin Fukazawa, Yasushi Fukuda, Kentaro Ishizu, Sumito Jackson, Miranda Kamae, Tune Kawaguchi, Noriaki Kawano, Takafumi Kiss, Mózsi Moretti, Elena Salinas, Maria Fernanda Muñoz Pearce, Mark Rydström, Stefan Takahashi, Hiromitsu Yanagida, Takayuki |
author_facet |
Kole, Merlin Fukazawa, Yasushi Fukuda, Kentaro Ishizu, Sumito Jackson, Miranda Kamae, Tune Kawaguchi, Noriaki Kawano, Takafumi Kiss, Mózsi Moretti, Elena Salinas, Maria Fernanda Muñoz Pearce, Mark Rydström, Stefan Takahashi, Hiromitsu Yanagida, Takayuki |
author_sort |
Kole, Merlin |
title |
A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
title_short |
A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
title_full |
A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
title_fullStr |
A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
title_full_unstemmed |
A Balloon-borne Measurement of High Latitude Atmospheric Neutrons Using a LiCAF Neutron Detector |
title_sort |
balloon-borne measurement of high latitude atmospheric neutrons using a licaf neutron detector |
publisher |
arXiv |
publishDate |
2013 |
url |
https://dx.doi.org/10.48550/arxiv.1311.5531 https://arxiv.org/abs/1311.5531 |
long_lat |
ENVELOPE(21.117,21.117,67.883,67.883) |
geographic |
Esrange |
geographic_facet |
Esrange |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1311.5531 |
_version_ |
1766147717065605120 |