skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities

Abstract

This paper presents an experimental and theoretical study of betatron x-ray radiation from laser wakefield acceleration in the self-modulated regime. Our experiments use picosecond duration laser pulses up to 150 J, for plasmas with electronic densities on the order of 10 19 cm -3. In the self-modulated regime, electrons accelerated in the wake of the laser pulse are subject to both the longitudinal plasma and transverse laser electrical fields. As a result, they undergo oscillations and radiate a synchrotron-like spectrum. In our experimental configuration, electrons accelerated up to about 300 MeV, as well as betatron x-ray spectra with energies of 10 s of keV and photon fluxes between 10 8–10 10 photons/eV/Sr are reported here. Our experiments open the prospect of using betatron x-ray radiation for applications, and the source could be competitive with current x-ray backlighting methods on multi-kilojoule laser systems used for high energy density or fusion sciences.

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [1];  [1];  [5];  [6];  [3];  [1];  [1]; ORCiD logo [7];  [8];  [6];  [5];  [1];  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). National Ignition Facility (NIF). Photon Sciences
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). National Ignition Facility (NIF). Photon Sciences; Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering
  3. Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). National Ignition Facility (NIF). Photon Sciences; Univ. of Texas, Austin, TX (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  6. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  7. Univ. of Lisbon (Portugal). Instituto Superior Técnico (IST). Inst. of Plasmas and Nuclear Fusion
  8. Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering; Univ. of Lisbon (Portugal). Instituto Superior Técnico (IST). Inst. of Plasmas and Nuclear Fusion
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Los Angeles, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); LLNL Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1490417
Alternate Identifier(s):
OSTI ID: 1525467
Grant/Contract Number:  
AC02-76SF00515; AC52-07NA27344; NA0002950; AC02-05CH11231; NA0003873
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 59; Journal Issue: 3; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; laser; plasma; x-ray sources; particle acceleration

Citation Formats

Albert, F., Lemos, N., Shaw, J. L., King, P. M., Pollock, B. B., Goyon, C., Schumaker, W., Saunders, A. M., Marsh, K. A., Pak, A., Ralph, J. E., Martins, J. L., Amorim, L. D., Falcone, R. W., Glenzer, S. H., Moody, J. D., and Joshi, C. Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities. United States: N. p., 2018. Web. doi:10.1088/1741-4326/aad058.
Albert, F., Lemos, N., Shaw, J. L., King, P. M., Pollock, B. B., Goyon, C., Schumaker, W., Saunders, A. M., Marsh, K. A., Pak, A., Ralph, J. E., Martins, J. L., Amorim, L. D., Falcone, R. W., Glenzer, S. H., Moody, J. D., & Joshi, C. Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities. United States. doi:10.1088/1741-4326/aad058.
Albert, F., Lemos, N., Shaw, J. L., King, P. M., Pollock, B. B., Goyon, C., Schumaker, W., Saunders, A. M., Marsh, K. A., Pak, A., Ralph, J. E., Martins, J. L., Amorim, L. D., Falcone, R. W., Glenzer, S. H., Moody, J. D., and Joshi, C. Mon . "Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities". United States. doi:10.1088/1741-4326/aad058. https://www.osti.gov/servlets/purl/1490417.
@article{osti_1490417,
title = {Betatron x-ray radiation in the self-modulated laser wakefield acceleration regime: prospects for a novel probe at large scale laser facilities},
author = {Albert, F. and Lemos, N. and Shaw, J. L. and King, P. M. and Pollock, B. B. and Goyon, C. and Schumaker, W. and Saunders, A. M. and Marsh, K. A. and Pak, A. and Ralph, J. E. and Martins, J. L. and Amorim, L. D. and Falcone, R. W. and Glenzer, S. H. and Moody, J. D. and Joshi, C.},
abstractNote = {This paper presents an experimental and theoretical study of betatron x-ray radiation from laser wakefield acceleration in the self-modulated regime. Our experiments use picosecond duration laser pulses up to 150 J, for plasmas with electronic densities on the order of 1019 cm-3. In the self-modulated regime, electrons accelerated in the wake of the laser pulse are subject to both the longitudinal plasma and transverse laser electrical fields. As a result, they undergo oscillations and radiate a synchrotron-like spectrum. In our experimental configuration, electrons accelerated up to about 300 MeV, as well as betatron x-ray spectra with energies of 10 s of keV and photon fluxes between 108–1010 photons/eV/Sr are reported here. Our experiments open the prospect of using betatron x-ray radiation for applications, and the source could be competitive with current x-ray backlighting methods on multi-kilojoule laser systems used for high energy density or fusion sciences.},
doi = {10.1088/1741-4326/aad058},
journal = {Nuclear Fusion},
number = 3,
volume = 59,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share: