Simulations of the generation and transport of a 5 MV end-point x-ray beam on a pulsed power generator
Abstract
An experimental campaign was recently completed at the U.S. Naval Research Laboratory’s Mercury pulsed-power facility, where the feasibility of using a 5 MV inductive voltage adder (IVA) as a pulsed photoneutron source was studied. In these experiments, a large-area bremsstrahlung diode was fielded on the Mercury accelerator, producing an intense, pulsed x-ray beam, which generated photoneutrons when striking an appropriate target. This paper reports on simulations that were performed to study the production of the electron beam in the diode, and the generation and transport of the x-ray beam. Comparison is made between the numerically predicted beam properties and results obtained during the experimental campaign. Various models of electron and ion emission from the electrodes in the generator were simulated, and the effect of model parameter choices on the dose predictions is described.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1512354
- Alternate Identifier(s):
- OSTI ID: 1523240
- Report Number(s):
- LA-UR-19-20335
Journal ID: ISSN 2469-9888; PRABCJ; 050401
- Grant/Contract Number:
- AC52-06NA25396; 89233218CNA000001
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 22 Journal Issue: 5; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; pulsed neutron source
Citation Formats
Richardson, A. S., Zier, J. C., Engelbrecht, J. T., Swanekamp, S. B., Schumer, J. W., Mosher, D., Ottinger, P. F., Duke, D. L., Haines, T. J., McCumber, M. P., and Gehring, A. Simulations of the generation and transport of a 5 MV end-point x-ray beam on a pulsed power generator. United States: N. p., 2019.
Web. doi:10.1103/PhysRevAccelBeams.22.050401.
Richardson, A. S., Zier, J. C., Engelbrecht, J. T., Swanekamp, S. B., Schumer, J. W., Mosher, D., Ottinger, P. F., Duke, D. L., Haines, T. J., McCumber, M. P., & Gehring, A. Simulations of the generation and transport of a 5 MV end-point x-ray beam on a pulsed power generator. United States. https://doi.org/10.1103/PhysRevAccelBeams.22.050401
Richardson, A. S., Zier, J. C., Engelbrecht, J. T., Swanekamp, S. B., Schumer, J. W., Mosher, D., Ottinger, P. F., Duke, D. L., Haines, T. J., McCumber, M. P., and Gehring, A. Mon .
"Simulations of the generation and transport of a 5 MV end-point x-ray beam on a pulsed power generator". United States. https://doi.org/10.1103/PhysRevAccelBeams.22.050401.
@article{osti_1512354,
title = {Simulations of the generation and transport of a 5 MV end-point x-ray beam on a pulsed power generator},
author = {Richardson, A. S. and Zier, J. C. and Engelbrecht, J. T. and Swanekamp, S. B. and Schumer, J. W. and Mosher, D. and Ottinger, P. F. and Duke, D. L. and Haines, T. J. and McCumber, M. P. and Gehring, A.},
abstractNote = {An experimental campaign was recently completed at the U.S. Naval Research Laboratory’s Mercury pulsed-power facility, where the feasibility of using a 5 MV inductive voltage adder (IVA) as a pulsed photoneutron source was studied. In these experiments, a large-area bremsstrahlung diode was fielded on the Mercury accelerator, producing an intense, pulsed x-ray beam, which generated photoneutrons when striking an appropriate target. This paper reports on simulations that were performed to study the production of the electron beam in the diode, and the generation and transport of the x-ray beam. Comparison is made between the numerically predicted beam properties and results obtained during the experimental campaign. Various models of electron and ion emission from the electrodes in the generator were simulated, and the effect of model parameter choices on the dose predictions is described.},
doi = {10.1103/PhysRevAccelBeams.22.050401},
journal = {Physical Review Accelerators and Beams},
number = 5,
volume = 22,
place = {United States},
year = {Mon May 13 00:00:00 EDT 2019},
month = {Mon May 13 00:00:00 EDT 2019}
}
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https://doi.org/10.1103/PhysRevAccelBeams.22.050401
https://doi.org/10.1103/PhysRevAccelBeams.22.050401
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Works referencing / citing this record:
Particle-in-cell simulations of current loss in magnetically insulated transmission line with inductive helical support
journal, August 2019
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