Preac(cellerator) and Linac
“Preac” - Static Cockroft-Walton generator accelerates H- ions from 0 to 750 KeV.  (Actually, there are two of these, H- and I-)
“Old linac”- 200 MHz Alvarez Tubes accelerate H- ions from 750 keV to 116 MeV
“New linac”- 800 MHz p cavities accelerate H- ions from 116 MeV to 400 MeV
Preac/Linac can deliver about 45 mA of current for about 35 usec at a 15 Hz repetition rate
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