TY - JOUR
T1 - Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target
AU - Sanami, T.
AU - Iwamoto, Y.
AU - Kajimoto, T.
AU - Shigyo, N.
AU - Hagiwara, M.
AU - Lee, H. S.
AU - Ramberg, E.
AU - Coleman, R.
AU - Soha, A.
AU - Jensen, D.
AU - Leveling, A.
AU - Mokhov, N. V.
AU - Boehnlein, D.
AU - Vaziri, K.
AU - Ishibashi, K.
AU - Sakamoto, Y.
AU - Nakashima, H.
PY - 2012/3/1
Y1 - 2012/3/1
N2 - A methodology for the time-of-flight measurement of the neutron energy spectrum for a high-energy proton-beam-induced reaction was established at the Fermilab Test Beam Facility of the Fermi National Accelerator Laboratory. The 120-GeV proton beam with 3 × 10 5 protons/spill was prepared for event-by-event counting of incident protons and emitted neutrons for time-of-flight energy determination. An NE213 organic liquid scintillator (12.7 cm in diameter by 12.7 cm in length) was employed with a veto plastic scintillator and a pulse-shape discrimination technique to identify neutrons. Raw waveforms of NE213, veto and beam detectors were recorded to discriminate the effects of multi-proton beam events by considering different time windows. The neutron energy spectrum ranging from 10 to 800 MeV was obtained for a 60-cm-long copper target at 90° with respect to the beam axis. The obtained spectrum was consistent with that deduced employing the conventional unfolding technique as well as that obtained in a 40-GeV/c thin-target experiment.
AB - A methodology for the time-of-flight measurement of the neutron energy spectrum for a high-energy proton-beam-induced reaction was established at the Fermilab Test Beam Facility of the Fermi National Accelerator Laboratory. The 120-GeV proton beam with 3 × 10 5 protons/spill was prepared for event-by-event counting of incident protons and emitted neutrons for time-of-flight energy determination. An NE213 organic liquid scintillator (12.7 cm in diameter by 12.7 cm in length) was employed with a veto plastic scintillator and a pulse-shape discrimination technique to identify neutrons. Raw waveforms of NE213, veto and beam detectors were recorded to discriminate the effects of multi-proton beam events by considering different time windows. The neutron energy spectrum ranging from 10 to 800 MeV was obtained for a 60-cm-long copper target at 90° with respect to the beam axis. The obtained spectrum was consistent with that deduced employing the conventional unfolding technique as well as that obtained in a 40-GeV/c thin-target experiment.
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U2 - 10.1016/j.nimb.2011.11.041
DO - 10.1016/j.nimb.2011.11.041
M3 - Article
AN - SCOPUS:84855169031
SN - 0168-583X
VL - 274
SP - 26
EP - 35
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -