Distribution of collected target debris using the large area solid debris radiochemistry collector

Despotopulos, J. D.; Shaughnessy, D. A.; Gharibyan, N.; Moody, K. J.; Grant, P. M.; Yeamans, C. B.; Waltz, C. S.

doi:10.1063/1.5039325

Title: Distribution of collected target debris using the large area solid debris radiochemistry collector

Journal Article · Fri Oct 12 00:00:00 EDT 2018 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.5039325· OSTI ID:1545510

Despotopulos, J. D. ^[1]; Shaughnessy, D. A. ^[1];

^[1]; Moody, K. J. ^[1]; Grant, P. M. ^[1];

^[1]; Waltz, C. S. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

A large area solid radiochemistry collector was deployed at the National Ignition Facility (NIF) with a collection efficiency for post-shot, solid target debris of approximately 1% of the total 4π solid angle. The collector consisted of a 20-cm diameter vanadium foil surrounded by an aluminum side-enclosure and was fielded 50 cm from the NIF target. The collector was used on two NIF neutron yield shots, both of which had a monolayer of ²³⁸U embedded in the capsule ablator 10 μm from the inner surface. Fission and activation products produced in the ²³⁸U were collected, and subsequent analyses via gamma spectroscopy indicated that the distribution of fission products was not uniform, with peak and valley fission products preferentially collected on the vanadium and low- and high-mass fission products primarily located on the aluminum side-enclosure. The results from these shots will be used to design future nuclear data experiments at NIF.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: AC52-07NA27344; 16-SI-001

OSTI ID:: 1545510

Alternate ID(s):: OSTI ID: 1477214

Journal Information:: Review of Scientific Instruments, Vol. 89, Issue 10; Conference: 22. Topical Conference on High-Temperature Plasma Diagnostics , San Diego, CA (United States), Apr. 2018; ISSN 0034-6748

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

Country of Publication:: United States

Language:: English

References (8)

Large area solid radiochemistry (LASR) collector at the National Ignition Facility Waltz, Cory; Jedlovec, Donald R.; Hardy, Michael C. Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI https://doi.org/10.1117/12.2272640	conference	September 2017
Dynamic high energy density plasma environments at the National Ignition Facility for nuclear science research Cerjan, Ch J.; Bernstein, L.; Hopkins, L. Berzak Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 3 https://doi.org/10.1088/1361-6471/aa8693	journal	February 2018
Development of the CD Symcap platform to study gas-shell mix in implosions at the National Ignition Facility Casey, D. T.; Smalyuk, V. A.; Tipton, R. E. Physics of Plasmas, Vol. 21, Issue 9 https://doi.org/10.1063/1.4894215	journal	September 2014
Fuel gain exceeding unity in an inertially confined fusion implosion Hurricane, O. A.; Callahan, D. A.; Casey, D. T. Nature, Vol. 506, Issue 7488 https://doi.org/10.1038/nature13008	journal	February 2014
Target Development for the National Ignition Campaign Hamza, A. V.; Nikroo, A.; Alger, E. Fusion Science and Technology, Vol. 69, Issue 1 https://doi.org/10.13182/FST15-163	journal	February 2016
Radiochemical determination of Inertial Confinement Fusion capsule compression at the National Ignition Facility Shaughnessy, D. A.; Moody, K. J.; Gharibyan, N. Review of Scientific Instruments, Vol. 85, Issue 6 https://doi.org/10.1063/1.4883186	journal	June 2014
Fission Product Data Measured at Los Alamos for Fission Spectrum and Thermal Neutrons on 239Pu, 235U, 238U Selby, H. D.; Mac Innes, M. R.; Barr, D. W. Nuclear Data Sheets, Vol. 111, Issue 12 https://doi.org/10.1016/j.nds.2010.11.002	journal	December 2010
Evaluation and compilation of fission product yields 1993 England, T. R.; Rider, B. F. https://doi.org/10.2172/10103145	report	December 1995