Design of a MeV, 4kA linear induction accelerator for flash radiography
For verifying the hydrodynamics of nuclear weapons design it is useful to have flash x-ray machines that can deliver a maximum dose in a minimum pulse length and with very high reliability. At LLNL, such a requirement was identified some years ago as 500 roentgens at one meter, in a 60 nsec pulse length. In response to this requirement, a linear induction accelerator was proposed to and funded by DOE in 1977. The design of this machine, called FXR, has now been completed and construction has begun. The FXR design extends the parameters of a similar machine that had been built and operated at LBL, Berkeley, some ten years ago. Using a cold cathode injector followed by 48 accelerator modules rated at 400 kV each, the FXR machine will accelerate a 4 kA electron beam pulse to 20 MeV final energy. Key design features are the generation and the stable transport of a low emittance (100 mr-cm) beam from a field emitter diode, the design of reliable, compact energy storage components such as Blumleins, feedlines and accelerator modules, and a computer-assisted control system.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6609415
- Report Number(s):
- UCID-18939; TRN: 81-004875
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LINEAR ACCELERATORS
KILO AMP BEAM CURRENTS
X-RAY SOURCES
PULSE TECHNIQUES
ELECTRON BEAMS
MEV RANGE 10-100
SPECIFICATIONS
ACCELERATORS
BEAM CURRENTS
BEAMS
CURRENTS
ENERGY RANGE
EQUIPMENT
LEPTON BEAMS
MEV RANGE
PARTICLE BEAMS
RADIATION SOURCES
X-RAY EQUIPMENT
430303* - Particle Accelerators- Experimental Facilities & Equipment