LiF ion source performance on PBFA II
- Sandia National Labs., Albuquerque, NM (United States)
- New Mexico Univ., Albuquerque, NM (United States)
Recent LiF ion source experiments have been conducted on Sandia National Laboratories` Particle Beam Fusion Accelerator (PBFA) II. This facility is designed to provide a 30 MV, 100 TW power pulse to an applied B ion diode to investigate the suitability of light ions for inertial confinement fusion (ICF). Singly-ionized lithium is the desired ion species for these experiments because it has the proper range in target materials at 30 MV. LiF-coated anodes have been shown in experiments on other accelerators to produce relatively pure (>70%) Li{sup +} beams. Earlier PBFA II experiments using porous anodes coated with LiF confirmed Li{sup +} production from LiF films. The present PBFA II experiments use 0.6 {mu}m films of LiF evaporated onto a stainless steel anode surface to provide a 1 MA, 25 ns FWHM pulse of Li{sup +} ions at energies of 6--9 MeV. The physical mechanism for production of ions from thin films of LiF has not previously been identified. One of us, T. Green, has developed a model which is consistent with LiF data from PBFA II and laboratory experiments and may provide a framework for understanding Li{sup +} ion production from thin LiF films in an applied B diode.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 10156049
- Report Number(s):
- SAND--91-2586C; CONF-920515--15; ON: DE92015769
- Country of Publication:
- United States
- Language:
- English
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