Title :
Optimization of radiographic spot for the TriMeV accelerator
Author :
Welch, D.R. ; Oliver, B.V. ; Rodenthal, S.E. ; Olson, C.L.
Author_Institution :
Mission Res. Corp., Albuquerque, NM, USA
Abstract :
Summary form only given. We are examining diode configurations for the 3-MeV, 30-kA TriMeV electron-beam accelerator at Bechtel Nevada. These include a flat-cathode diode with focusing into a gas cell and a magnetically-immersed diode similar to that used on HERMES III at Sandia National Laboratories. We are in the process of optimizing the diode designs using the hybrid kinetic-fluid simulation code IPROP/sup 2/ which models both vacuum flow and gas breakdown. These configurations will be fielded on TriMeV this year.
Keywords :
electron accelerators; optimisation; particle accelerators; plasma diodes; plasma simulation; radiography; 12 to 18 tesla; 13 ns; 23 kA; 3 MeV; 3 ns; 30 kA; 5 kA; 5 to 15 torr; IPROP/sup 2/; TriMeV accelerator; ballistic focusing regime; diode configurations; diode design optimisation; diode impedance; electron-beam accelerator; finite plasma current decay; flat-cathode diode; focusing; gas breakdown; gas cell; hybrid kinetic-fluid simulation code; magnetically-immersed diode; magnetised ion hose instability; radiographic spot optimisation; time-integrated beam spot; vacuum flow; velvet electron accelerator; Acceleration; Critical current; Diodes; Electron accelerators; Electron beams; Laboratories; Plasma simulation; Radiography; Vacuum breakdown; Voltage;
Conference_Titel :
Plasma Science, 1999. ICOPS '99. IEEE Conference Record - Abstracts. 1999 IEEE International Conference on
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-5224-6
DOI :
10.1109/PLASMA.1999.829454
