Determination of spallation neutron flux through spectral adjustment techniques

Journal Article · Mon May 30 00:00:00 EDT 2016 · Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms

DOI:https://doi.org/10.1016/j.nimb.2016.04.041· OSTI ID:1338749

Mosby, Michelle A. ^[1]; Engle, Jonathan Ward ^[1]; Jackman, Kevin Richard ^[1]; Nortier, Francois Meiring ^[1]; Birnbaum, Eva R. ^[1]

---

1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The Los Alamos Isotope Production Facility (IPF) creates medical isotopes using a proton beam impinged on a target stack. Spallation neutrons are created in the interaction of the beam with target. The use of these spallation neutrons to produce additional radionuclides has been proposed in this paper. However, the energy distribution and magnitude of the flux is not well understood. Finally, a modified SAND-II spectral adjustment routine has been used with radioactivation foils to determine the differential neutron fluence for these spallation neutrons during a standard IPF production run.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1338749
• Alternate ID(s): OSTI ID: 1326413
• Report Number(s): LA-UR-16-20467
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, Vol. 381; ISSN 0168-583X
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Spallation neutrons
Isotope production
Proton irradiation
Spectral unfolding