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SUMMARY:Measurement of the total neutron cross section on argon in the 30 
 to 70 keV energy range
DTSTART;VALUE=DATE-TIME:20210915T214500Z
DTEND;VALUE=DATE-TIME:20210915T220000Z
DTSTAMP;VALUE=DATE-TIME:20260606T133143Z
UID:indico-contribution-52@indico.physics.ucsd.edu
DESCRIPTION:Speakers: Tyler Erjavec (University of California Davis)\nThe 
 use of liquid argon as a detection and shielding medium for neutrino and d
 ark matter experiments has made the precise knowledge of the cross section
  for neutron interactions on argon an important design and operational par
 ameter. Nevertheless\, there has been a lingering discrepancy between the 
 total cross-section in the 30-70 keV region given in the Evaluated Nuclear
  Data File (ENDF) and the single measurement done in the 1990's by an expe
 riment optimized for higher energy. This discrepancy is significant in tha
 t the former predicts a large negative resonance in the region while the m
 easurement did not report such a feature\, giving rise to significant unce
 rtainty in the penetration depth of neutrons through liquid argon. This ta
 lk presents results from the Argon Resonant Transport Interaction Experime
 nt (ARTIE) at the Los Alamos Neutron Science Center (LANSCE)\, the first d
 edicated experiment optimized for this energy region. The ARTIE measuremen
 t of the total cross-section as a function of energy confirms the existenc
 e of a negative resonance in this region\, but not quite as deep as the EN
 DF prediction.\n\nhttps://indico.physics.ucsd.edu/event/1/contributions/52
 /
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/52/
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