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

Title: Precision X-Band Linac Technologies for Nuclear Photonics Gamma-Ray Sources

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; « less
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1149347
Report Number(s):
SLAC-PUB-16056
DOE Contract Number:
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Journal Name: Conf.Proc.C110904:1491-1493,2011; Conference: Presented at the 2nd International Particle Accelerator Conference (IPAC-2011), San Sebastian, Spain, 4-9 Sep 2011
Country of Publication:
United States
Language:
English
Subject:
Accelerators,ACCPHY

Citation Formats

Hartemann, F.V., Albert, F., Anderson, S.G., Bayramian, A.J., Cross, R.R., Ebbers, C.A., Gibson, D.J., Houck, T.L., Marsh, R.A., Messerly, M.J., Siders, C.W., McNabb, D.P., Barty, C.P.J., /LLNL, Livermore, Adolphsen, C., Chu, T.S., Jongewaard, E.N., Tantawi, S.G., Vlieks, A.E., Wang, F., Wang, J.W., Raubenheimer, T.O., and /SLAC /INFLRP, Romania /Bucharest, IFIN-HH. Precision X-Band Linac Technologies for Nuclear Photonics Gamma-Ray Sources. United States: N. p., 2014. Web.
Hartemann, F.V., Albert, F., Anderson, S.G., Bayramian, A.J., Cross, R.R., Ebbers, C.A., Gibson, D.J., Houck, T.L., Marsh, R.A., Messerly, M.J., Siders, C.W., McNabb, D.P., Barty, C.P.J., /LLNL, Livermore, Adolphsen, C., Chu, T.S., Jongewaard, E.N., Tantawi, S.G., Vlieks, A.E., Wang, F., Wang, J.W., Raubenheimer, T.O., & /SLAC /INFLRP, Romania /Bucharest, IFIN-HH. Precision X-Band Linac Technologies for Nuclear Photonics Gamma-Ray Sources. United States.
Hartemann, F.V., Albert, F., Anderson, S.G., Bayramian, A.J., Cross, R.R., Ebbers, C.A., Gibson, D.J., Houck, T.L., Marsh, R.A., Messerly, M.J., Siders, C.W., McNabb, D.P., Barty, C.P.J., /LLNL, Livermore, Adolphsen, C., Chu, T.S., Jongewaard, E.N., Tantawi, S.G., Vlieks, A.E., Wang, F., Wang, J.W., Raubenheimer, T.O., and /SLAC /INFLRP, Romania /Bucharest, IFIN-HH. Tue . "Precision X-Band Linac Technologies for Nuclear Photonics Gamma-Ray Sources". United States. doi:. https://www.osti.gov/servlets/purl/1149347.
@article{osti_1149347,
title = {Precision X-Band Linac Technologies for Nuclear Photonics Gamma-Ray Sources},
author = {Hartemann, F.V. and Albert, F. and Anderson, S.G. and Bayramian, A.J. and Cross, R.R. and Ebbers, C.A. and Gibson, D.J. and Houck, T.L. and Marsh, R.A. and Messerly, M.J. and Siders, C.W. and McNabb, D.P. and Barty, C.P.J. and /LLNL, Livermore and Adolphsen, C. and Chu, T.S. and Jongewaard, E.N. and Tantawi, S.G. and Vlieks, A.E. and Wang, F. and Wang, J.W. and Raubenheimer, T.O. and /SLAC /INFLRP, Romania /Bucharest, IFIN-HH},
abstractNote = {},
doi = {},
journal = {Conf.Proc.C110904:1491-1493,2011},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 05 00:00:00 EDT 2014},
month = {Tue Aug 05 00:00:00 EDT 2014}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Nuclear photonics is an emerging field of research requiring new tools, including high spectral brightness, tunable gamma-ray sources; high photon energy, ultrahigh-resolution crystal spectrometers; and novel detectors. This presentation focuses on the precision linac technology required for Compton scattering gamma-ray light sources, and on the optimization of the laser and electron beam pulse format to achieve unprecedented spectral brightness. Within this context, high-gradient X-band technology will be shown to offer optimal performance in a compact package, when used in conjunction with the appropriate pulse format, and photocathode illumination and interaction laser technologies. The nascent field of nuclear photonics is enabledmore » by the recent maturation of new technologies, including high-gradient X-band electron acceleration, robust fiber laser systems, and hyper-dispersion CPA. Recent work has been performed at LLNL to demonstrate isotope-specific detection of shielded materials via NRF using a tunable, quasi-monochromatic Compton scattering gamma-ray source operating between 0.2 MeV and 0.9 MeV photon energy. This technique is called Fluorescence Imaging in the Nuclear Domain with Energetic Radiation (or FINDER). This work has, among other things, demonstrated the detection of {sup 7}Li shielded by Pb, utilizing gamma rays generated by a linac-driven, laser-based Compton scattering gamma-ray source developed at LLNL. Within this context, a new facility is currently under construction at LLNL, with the goal of generating tunable {gamma}-rays in the 0.5-2.5 MeV photon energy range, at a repetition rate of 120 Hz, and with a peak brightness in the 10{sup 20} photons/(s x mm{sup 2} x mrad{sup 2} x 0.1% bw).« less
  • Tunable, high precision gamma-ray sources are under development to enable nuclear photonics, an emerging field of research. This paper focuses on the technological and theoretical challenges related to precision Compton scattering gamma-ray sources. In this scheme, incident laser photons are scattered and Doppler upshifted by a high brightness electron beam to generate tunable and highly collimated gamma-ray pulses. The electron and laser beam parameters can be optimized to achieve the spectral brightness and narrow bandwidth required by nuclear photonics applications. A description of the design of the next generation precision gamma-ray source currently under construction at Lawrence Livermore National Laboratorymore » is presented, along with the underlying motivations. Within this context, high-gradient X-band technology, used in conjunction with fiber-based photocathode drive laser and diode pumped solid-state interaction laser technologies, will be shown to offer optimal performance for high gamma-ray spectral flux, narrow bandwidth applications.« less
  • No abstract prepared.
  • A precision, tunable gamma-ray source driven by a compact, high-gradient X-band linac is currently under development at LLNL. High-brightness, relativistic electron bunches produced by the linac interact with a Joule-class, 10 ps laser pulse to generate tunable {gamma}-rays in the 0.5-2.5 MeV photon energy range via Compton scattering. The source will be used to excite nuclear resonance fluorescence lines in various isotopes; applications include homeland security, stockpile science and surveillance, nuclear fuel assay, and waste imaging and assay. The source design, key parameters, and current status are presented.
  • We present a compact, X-band, high-brightness accelerator design suitable for driving a precision gamma-ray source. Future applications of gamma-rays generated by Compton-scattering of laser and relativistic electron beams place stringent demands on the brightness and stability of the incident electron beam. This design identifies the beam parameters required for gamma-ray production, including position, and pointing stability. The design uses an emittance compensated, 11.4 GHz photo-gun and linac to generate 400 pC, 1-2 mm-mrad electron bunches at up to 250 MeV and 120 Hz repetition rate. The effects of jitter in the RF power system are analyzed as well as structuremore » and optic misalignments. Finally, strategies for the mitigation of on-axis Bremsstrahlung noise are discussed.« less