A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility

Lahmann, B.; Gatu Johnson, M.; Hahn, K. D.; Frenje, J. A.; Ampleford, D. J.; Jones, B.; Mangan, M. A.; Maurer, A.; Ruiz, C. L.; Séguin, F. H.; Petrasso, R. D.

doi:10.1063/5.0011499

A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility

Journal Article · Thu Jul 02 00:00:00 EDT 2020 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/5.0011499· OSTI ID:1668366

^[1]; ^[1]; Hahn, K. D. ^[2]; ^[1]; ^[2]; Jones, B. ^[2]; Mangan, M. A. ^[2]; Maurer, A. ^[2]; Ruiz, C. L. ^[2]; Séguin, F. H. ^[1]; ^[1]

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

For this study, a proof-of-principle CR-39 based neutron-recoil-spectrometer was built and fielded on the Z facility. Data from this experiment match indium activation yields within a factor of 2 using simplified instrument response function (IRF) models. The data also demonstrates the need for neutron shielding in order to infer liner areal densities. A new shielded design has been developed. The spectrometer is expected to achieve signal-to-background greater than 2 for the down-scattered neutron signal and greater than 30 for the primary signal.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000; NA0003525; NA0003868

OSTI ID:: 1668366

Alternate ID(s):: OSTI ID: 1635737

Report Number(s):: SAND--2020-4112J; 685354

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 7 Vol. 91; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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