skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target

Abstract

Our 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. Finally our 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.

Authors:
 [1]; ;  [2];  [2];  [1];  [3];  [4];  [4];  [4];  [4];  [4];  [4];  [4];  [4];  [2];  [5];  [5]
  1. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
  2. Kyushu Univ. (Japan)
  3. Pohang Accelerator Lab. (PAL) (Korea, Republic of)
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Japan Atomic Energy Agency (JAEA), Tokai (Japan)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
JASMIN Collaboration
OSTI Identifier:
1234824
Report Number(s):
FERMILAB-PUB-15-555
Journal ID: ISSN 0168-583X
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
Additional Journal Information:
Journal Volume: 274; Journal ID: ISSN 0168-583X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
neutron spectrum; time-of-flight method; 120-GeV proton; copper target; NE213 liquid scintillator

Citation Formats

Sanami, T., Y. Iwamoto, Kajimoto, T., Shigyo, N., Hagiwara, M., Lee, H. S., Ramberg, E., Coleman, R., Soha, A., Jensen, D., Leveling, A., Mokhov, N. V., Boehnlein, D., Vaziri, K., Ishibashi, K., Sakamoto, Y., and Nakashima, H. Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target. United States: N. p., 2011. Web. doi:10.1016/j.nimb.2011.11.041.
Sanami, T., Y. Iwamoto, Kajimoto, T., Shigyo, N., Hagiwara, M., Lee, H. S., Ramberg, E., Coleman, R., Soha, A., Jensen, D., Leveling, A., Mokhov, N. V., Boehnlein, D., Vaziri, K., Ishibashi, K., Sakamoto, Y., & Nakashima, H. Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target. United States. doi:10.1016/j.nimb.2011.11.041.
Sanami, T., Y. Iwamoto, Kajimoto, T., Shigyo, N., Hagiwara, M., Lee, H. S., Ramberg, E., Coleman, R., Soha, A., Jensen, D., Leveling, A., Mokhov, N. V., Boehnlein, D., Vaziri, K., Ishibashi, K., Sakamoto, Y., and Nakashima, H. Tue . "Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target". United States. doi:10.1016/j.nimb.2011.11.041. https://www.osti.gov/servlets/purl/1234824.
@article{osti_1234824,
title = {Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target},
author = {Sanami, T. and Y. Iwamoto and Kajimoto, T. and Shigyo, N. and Hagiwara, M. and Lee, H. S. and Ramberg, E. and Coleman, R. and Soha, A. and Jensen, D. and Leveling, A. and Mokhov, N. V. and Boehnlein, D. and Vaziri, K. and Ishibashi, K. and Sakamoto, Y. and Nakashima, H.},
abstractNote = {Our 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 × 105 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. Finally our 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.},
doi = {10.1016/j.nimb.2011.11.041},
journal = {Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms},
issn = {0168-583X},
number = ,
volume = 274,
place = {United States},
year = {2011},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share: