Li+ alumino-silicate ion source development for the Neutralized Drift Compression Experiment (NDCX)
We report results on lithium alumino-silicate ion source development in preparation for warmdense-matter heating experiments on the new Neutralized Drift Compression Experiment (NDCXII). The practical limit to the current density for a lithium alumino-silicate source is determined by the maximum operating temperature that the ion source can withstand before running into problems of heat transfer, melting of the alumino-silicate material, and emission lifetime. Using small prototype emitters, at a temperature of ~;;1275 oC, a space-charge-limited Li+ beam current density of J ~;;1 mA/cm2 was obtained. The lifetime of the ion source was ~;;50 hours while pulsing at a rate of 0.033 Hz with a pulse duration of 5-6 mu s.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Accelerator& Fusion Research Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 1000050
- Report Number(s):
- LBNL-4040E; TRN: US1008184
- Journal Information:
- AIP American Institute of Physics, Journal Name: AIP American Institute of Physics
- Country of Publication:
- United States
- Language:
- English
Similar Records
Li+ alumino-silicate ion source development for the Neutralized Drift Compression Experiment (NDCX-II)
Source fabrication and lifetime for Li{sup +} ion beams extracted from alumino-silicate sources