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SUMMARY:MANY: measurement of (alpha\,n) thick target yields and cross-sect
 ions
DTSTART;VALUE=DATE-TIME:20251120T081500Z
DTEND;VALUE=DATE-TIME:20251120T083000Z
DTSTAMP;VALUE=DATE-TIME:20260421T143810Z
UID:indico-contribution-29008@indico.ific.uv.es
DESCRIPTION:Speakers: Daniel Soler (Universitat Politècnica de Catalunya)
 \nNeutrons produced in α-induced reactions play important roles in fields
  such as nuclear astrophysics\, neutron background in underground laborato
 ries\, fission and fusion reactors and non-destructive assays for non-prol
 iferation and spent fuel management applications. However\, most of the av
 ailable data on (α\,n) reactions was measured decades ago\, is incomplete
  and/or present large discrepancies not compatible with the declared uncer
 tainties. Thus\, new measurements addressing current needs are required [1
 \, 2]. To that end the Measurement of Alpha Neutron Yields and spectra (MA
 NY) collaboration was formed.\n\nThis contribution reports on the commissi
 oning of the modular neutron counter miniBELEN at the Centro Nacional de A
 celeradores (CNA). This detector has already been succesfully used to meas
 ure the 27Al(α\,n)30P reaction yields and cross-sections at the Centro de
  Micro-Análisis de Materiales (CMAM). The performance of the system at th
 is facility and its readiness for (α\,n) measurement campaigns will be de
 scribed.\n\nIn addition\, we present first results on auxiliary detectors 
 developed to complement miniBELEN. The recently characterized Ymon detecto
 r provides neutron flux measurements with angular sensitivity and exhibits
  a flat response in the ~1 keV to 8 MeV energy range. We also introduce a 
 highly segmented LaCl3 array under development\, designed to be embedded i
 n future neutron counters to enable hybrid neutron–gamma detection. Beyo
 nd α–γ studies\, this capability might allow the extraction of partial
  cross sections feeding different excited states in (α\,n) reactions\, th
 ereby enhancing the experimental reach of MANY.\n\n[1] S.S. Westerdale et 
 al\, IAEA technical meeting INDC(NDS)-0836 (2021)\n[2] A. Junghans et al.\
 , IAEA technical meeting INDC(NDS)-0894 (2023)\n[3] N Mont-Geli et al. EPJ
  Web of Conferences 284 (2023) 06004\n\nhttps://indico.ific.uv.es/event/80
 35/contributions/29008/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/29008/
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