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

Abstract

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.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]; ORCiD logo [2];  [2];  [2];  [2];  [2];  [1]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1668366
Alternate Identifier(s):
OSTI ID: 1635737
Report Number(s):
SAND-2020-4112J
Journal ID: ISSN 0034-6748; 685354
Grant/Contract Number:  
AC04-94AL85000; NA0003868; NA0003525
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 91; Journal Issue: 7; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

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., and Petrasso, R. D. A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility. United States: N. p., 2020. Web. https://doi.org/10.1063/5.0011499.
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. A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility. United States. https://doi.org/10.1063/5.0011499
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., and Petrasso, R. D. Thu . "A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility". United States. https://doi.org/10.1063/5.0011499. https://www.osti.gov/servlets/purl/1668366.
@article{osti_1668366,
title = {A neutron recoil-spectrometer for measuring yield and determining liner areal densities at the Z facility},
author = {Lahmann, B. and Gatu Johnson, M. and Hahn, K. D. and Frenje, J. A. and Ampleford, D. J. and Jones, B. and Mangan, M. A. and Maurer, A. and Ruiz, C. L. and Séguin, F. H. and Petrasso, R. D.},
abstractNote = {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.},
doi = {10.1063/5.0011499},
journal = {Review of Scientific Instruments},
number = 7,
volume = 91,
place = {United States},
year = {2020},
month = {7}
}

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