Week 41 - Parallel MD - SPS

Ar Ion beam setup

T. Bohl

Thursday 2014-10-09

It was the first time that we had the cycle
SFT_ION_4Inj_E333.33L1236_2014_V1 available. Due to a large number of
software changes concerning FESA, LSA, Timing et cetera and hardware
changes in the RF low level we expected a relatively long time to get a
basic set-up of the cycle.

During the initial part of the setting-up the rev. freq. was not yet
generated on the ion cycle. For the first hour of the setting-up the
fixed target operation was affected by the ion cycle due to that: the
beam dump interlock system is not working ppm and it stopped the fixed
target beam although the RF was working fine during the fixed target
cycle. For the rest of the day there was no interference with the fixed
target operation.

The whole day was used for a basic setting-up of the RF low level.


Friday 2014-10-10

During the morning we could get the low level ready for injection of the
Ar ions and we requested the beam from the CPS at the beginning of the
afternoon. The CPS confirmed that the Ar ions could be synchronised with
the RF signal from the SPS. The Ar ions were extracted and seen on
BTV1001
(http://elogbook.cern.ch/eLogbook/event_viewer.jsp?eventId=1835504).