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Title: Co-axial, high energy gamma generator

Abstract

A gamma ray generator includes an ion source in a first chamber. A second chamber is configured co-axially around the first chamber at a lower second pressure. Co-axially arranged plasma apertures separate the two chambers and provide for restricted passage of ions and gas from the first to the second chamber. The second chamber is formed by a puller electrode having at least one long channel aperture to draw ions from the first chamber when the puller electrode is subject to an appropriate applied potential. A plurality of electrodes rings in the third chamber in third pressure co-axially surround the puller electrode and have at least one channel corresponding to the at least one puller electrode aperture and plasma aperture. The electrode rings increase the energy of the ions to a selected energy in stages in passing between successive pairs of the electrodes by application of an accelerating voltage to the successive pairs of accelerator electrodes. A target disposed co-axially around the plurality of electrodes receives the beam of accelerated ions, producing gamma rays.

Inventors:
 [1];  [2]
  1. Princeton, NJ
  2. Pennington, NJ
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1024205
Patent Number(s):
8000447
Application Number:
12/512,424
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05G - X-RAY TECHNIQUE
DOE Contract Number:  
AC02-05CH11231
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCES

Citation Formats

Reijonen, Jani Petteri, and Gicquel, Frederic. Co-axial, high energy gamma generator. United States: N. p., 2011. Web.
Reijonen, Jani Petteri, & Gicquel, Frederic. Co-axial, high energy gamma generator. United States.
Reijonen, Jani Petteri, and Gicquel, Frederic. Tue . "Co-axial, high energy gamma generator". United States. https://www.osti.gov/servlets/purl/1024205.
@article{osti_1024205,
title = {Co-axial, high energy gamma generator},
author = {Reijonen, Jani Petteri and Gicquel, Frederic},
abstractNote = {A gamma ray generator includes an ion source in a first chamber. A second chamber is configured co-axially around the first chamber at a lower second pressure. Co-axially arranged plasma apertures separate the two chambers and provide for restricted passage of ions and gas from the first to the second chamber. The second chamber is formed by a puller electrode having at least one long channel aperture to draw ions from the first chamber when the puller electrode is subject to an appropriate applied potential. A plurality of electrodes rings in the third chamber in third pressure co-axially surround the puller electrode and have at least one channel corresponding to the at least one puller electrode aperture and plasma aperture. The electrode rings increase the energy of the ions to a selected energy in stages in passing between successive pairs of the electrodes by application of an accelerating voltage to the successive pairs of accelerator electrodes. A target disposed co-axially around the plurality of electrodes receives the beam of accelerated ions, producing gamma rays.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}

Works referenced in this record:

Neutron generators developed at LBNL for homeland security and imaging applications
journal, August 2007


Coaxial Mono-Energetic Gamma Generator for Active Interrogation
conference, January 2009

  • Ludewigt, B. A.; Antolak, A. J.; Henestroza, E.
  • APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY: Twentieth International Conference, AIP Conference Proceedings
  • https://doi.org/10.1063/1.3120128