-- Dr. Vittorio Boccone - University of Geneva o Address: UniGe: Département de physique nucléaire et corpusculaire 24 Quai Ernest-Ansermet, CH-1211 Geneve 4, Switzerland CERN: CERN, CH-1211 Geneve 23, Switzerland o E-mail: vittorio.boccone_at_unige.ch vittorio.boccone_at_cern.ch o Phone: Mobile: +41 76 487 5737 UniGe: +41 22 379 6357/6353 CERN: +41 22 767 5821 On 30 Jul 2013, at 14:37, saneesh_at_iuac.res.in wrote: > Dear Fluka experts, > I am trying to simulate the variation of efficiency with > energy, for neutrons, in organic liquid scintillator BC > 501A. Since the light output is proportional to the > energy deposited by recoil protons, the variation of > energy deposited by recoil proton with neutron energy > is expected to produce identical result. The result > obtained is given below. > Neutron energy (MeV) Recoil proton energy (MeV) > 0.5 0.227 > 1.0 0.468 > 2.0 0.731 > 3.0 0.905 > 4.0 1.031 > 5.0 1.163 > 6.0 1.237 > 7.0 1.310 > 8.0 1.339 > 9.0 1.385 > 10.0 1.421 > 12.0 1.480 > 14.0 1.514 > 16.0 1.502 > 18.0 1.497 > 20.0 1.576 > 25.0 1.491 > 30.0 1.554 > > The result shows that efficiency saturates near 15 MeV. I have > compared with the results of M.Drosg, NIM 105(1972) 573 (please find > the attachments). Unlike my results, there is always a reduction in > efficiency with energy >10MeV. And also I couldn't find a way to set > the production threshold of secondary protons. I am attaching one of > the input file along with mail (successive simulations are done by > varying the energy only). Please help me to resolve the problems. > > Thanks in advance > > Saneesh N > > > <P_recoil.inp><Efficiency_vs energy1.jpeg>Received on Fri Aug 02 2013 - 09:36:41 CEST
This archive was generated by hypermail 2.3.0 : Fri Aug 02 2013 - 09:36:46 CEST