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SUMMARY:IFIC experimental seminar: "Neutron spectrometry with HENSA: from 
 underground physics to space weather applications"
DTSTART;VALUE=DATE-TIME:20220404T100000Z
DTEND;VALUE=DATE-TIME:20220404T110000Z
DTSTAMP;VALUE=DATE-TIME:20260503T225847Z
UID:indico-event-6612@indico.ific.uv.es
DESCRIPTION:In underground facilities neutrons are produced from nuclear r
 eactions induced by the intrinsic radioactivity of the materials in the ro
 ck and cavity walls. These radiogenic neutrons constitute a background whi
 ch is a limiting factor for low counting rate experiments in astrophysics\
 , dark matter and neutrino searches. Therefore\, a proper characterization
  of the spectral distribution of radiogenic neutrons is required in order 
 to properly assess or mitigate the neutron background component affecting 
 experiments in underground facilities. On the other hand\, neutrons are pr
 oduced continuously as a secondary radiation from cosmic-ray interactions 
 in the upper atmosphere of our planet. This component is the main contribu
 tion to the ambient neutron background observed at ground level or high al
 titudes. The measurement of cosmic-ray neutrons is connected with differen
 t fields such as environmental radioactivity\, single event upsets (SEUs) 
 in microelectronics\, the physics of cosmic-rays and space weather.\n\nIn 
 this seminar the High Efficiency Neutron Spectrometry Array (HENSA) will b
 e presented. HENSA is a state-of-the-art detection system for neutron back
 ground spectrometry in low radioactivity facilities\, such as underground 
 laboratories\, and for the measurement of secondary neutrons produced by c
 osmic-rays. The HENSA spectrometer has a spectral sensitivity 5-15 times l
 arger than conventional spectrometers in a wide neutron energy range spann
 ing from thermal up to GeV’s. For cosmic-ray neutrons\, HENSA provides n
 ear real-time measurements of the neutron spectrum on a time scale of tens
  of minutes up to few hours\, thus enabling possible applications in space
  weather as a neutron monitor with spectral sensitivity. Since 2019 HENSA 
 is being used for a long-term characterization of the neutron background a
 t the Canfranc Underground Laboratory (LSC)\, which includes continuous me
 asurement in hall A and hall B (HENSA/ANAIS collaboration). Moreover\, in 
 2020 HENSA has been used to map the cosmic-ray neutron background along th
 e spanish territory during quiet solar conditions at the beginning of the 
 solar cycle #25. Currently\, a new version of HENSA\, called HENSA++\, is 
 being developed at IFIC for space weather applications. The status of the 
 HENSA project (www.hensaproject.org) and future perspectives will be discu
 ssed in this talk.\n\nhttps://indico.ific.uv.es/event/6612/
LOCATION:Universe 1001-Primera-1-1-1 - Paterna. Seminario
URL:https://indico.ific.uv.es/event/6612/
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