Linac Status May 19, 2015 Time Meeting D. Raparia.

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Presentation transcript:

Linac Status May 19, 2015 Time Meeting D. Raparia

2 Status l Linac running in good condition for polarized proton program and BLIP l After last week OPPIS maintenance is low polarization but improving by time, will be determined today if maintenance is needed tomorrow behind APEX l Mod-3 driver keeps tripping since last Thursday

Average Current and Beam on HRS for BLIP D. Raparia 3 Research Target, Mod 3 driver cart and SCR fan NM065 chipmunk fail

Mod-3 Driver trips - Replaced SCR fan - Paced 100 uF cap across air flow switch, - Replace driver cart - Replace filament bias power supply - Replaced air flow switch - Bypass “4616 bias fault”, to get fault below - Jennings fault, rewire Jennings switch - Adjusted Filament bias voltage D. Raparia 4

FWHM (mm) at Harp 1 and 2 D. Raparia 5

Beam Center (mm) at Harp1 and 2 D. Raparia 6

Beamline Location 7 1.plunging harp ” collimator 3.bellows (3x) 4.raster magnet 5.steering magnets (existing, 2x) ” collimator 7.plunging harp (opposite side) 8.laser profile monitor 9.beam current transformers (2x) 10.beam position monitor 11.beryllium window (existing) 12.aluminum bellows (existing) 21’ 14’

HARP1 D. Raparia 8

HARP2 D. Raparia 9