Conceptual HERMES III diode designs

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6210380

Sanford, T W.L.; Halbleib, J A; Poukey, J W; Wright, T P; Hasti, D E; Ramirez, J J; Spence, P W; Bailey, V L

Hermes III is a 20 MV 500 to 800 kA linear induction accelerator being designed for use as a large-area uniform source of flash ..gamma..-rays. Diode designs that can efficiently convert the electrical energy to ..gamma..-ray energy and distribute that ..gamma..-ray energy uniformly over a large area are needed. Code simulations of coaxial diode designs show that the electron beam at the anode/cathode gap forms a weak pinch resulting in excessive on-axis radiation. Modifications to the anode/cathode structure to reduce this pinch by controlling the radial electric field are discussed. Results of diode simulations using the PIC code MAGIC and the electron/photon transport code CYLTRAN are presented.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA); Pulse Sciences, Inc., San Leandro, CA (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6210380
• Report Number(s): SAND-85-2371C; CONF-851136-3; ON: DE86002919
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430300* -- Particle Accelerators-- Auxiliaries & Components
ACCELERATORS
BEAM CURRENTS
COMPUTER-AIDED DESIGN
COMPUTERIZED SIMULATION
CURRENTS
ELECTRIC FIELDS
ELECTRODES
ENERGY RANGE
GAMMA SOURCES
INDUCTION
KILO AMP BEAM CURRENTS
LINEAR ACCELERATORS
MEV RANGE
MEV RANGE 10-100
PINCH EFFECT
RADIATION SOURCES
SIMULATION