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<-M.ELLIS ->
<APOLLONIO>
MICO Alain Blondel 17 March 2008
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MICE target test-run 14-15 March 2008
Friday 14/03/2008 6:00-> 18:00
Saturday 15/03/2008 8:00 -> 18:00
Aims:
run up to 5000 shots of the MICE target in stable mode
Measure particle production with the beam line in positive (450 MeV/c protons)
configuration
TGT (Q1Q2Q3) B1 -no DKS- ICL1 GVA1 B2 (Q4Q5Q6) ICL2 GVA2
Achieved
The target was successfully run in synchronization with the beam; both depth and
delay of the target dip were investigated, up to the limit given by any beam loss
monitor reading <50 mV; this limit was found to be reasonably stable and not
oversensitive to the dip depth. At the end of the shift we were able to run the
target at a good stable setting and a frequency of 50/128Hz while running ISIS
at 50Hz, frequency at which it was verified that the target was hitting properly
the end of one ISIS fill without scraping the following one; this was a mode of
operation similar to what we would have running MICE in parasitic mode.
A radiation survey was conducted soon after the conclusion of the shift, after a
total of 3679 target pulses, and showed no significant increase of radiation.
Also
Installed detectors from ICL and GVA, cabled and running.
Verified proper monitoring of MICE magnet PS
Logbook worked! https://micelog.dl.ac.uk (mice pwd: mice123)2
MICO Alain Blondel 17 March 2008
Not achieved:
However, due to a failure in the power supply of one of the MICE beam line
dipoles, (B1) we could not verify the rate of useful particle production.
This important measurement will have to be scheduled after the coming shut-down,
during which proper operation of all the MICE beam line magnets will be tested.
MICO Alain Blondel 17 March 2008
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