Dear all,

Kindly note the highlights of the operation group meeting held on Tuesday 1st Feb,05 which were as follows,

1) It has been decided that only around twenty ARC SSS need to be tested with magnetic measurements ie; SSW, MM measurements etc. So most of ARC SSSs (around 280) will be arriving without anticryostat , does not require SSW and magnetic measurements. Only one or two ARC SSS will be arriving per month with anti cryostat requiring SSW and magnetic measurements. Without magnetic measurements, the expectation is test 3 to 4 ARC SSS per week.

2) Please note that there is non standard connection in SSS036, where sextupoles are appearing across EF terminals and MQT are appearing on CD terminal. This means that POwering must be done through local SUN station and not from TEMA. As far as HV test is concerned it does not matter as the voltage applied are same for both the cases.So for some time now onwards, kindly get confirmed about the corrector magnets leads with equipment support.

3) HV Test: During preparation of HV test, while removing the voltage taps from current lead terminals, watch out for the high temperature of the current leads ( which was observed recently in TBD1) due to faulty temperature sensor. The corrective action is being taken in all benches.

4) Spurious File generation: It was observed in TBB1 for SSS056 that one spurious trainning file got genearted and got automatically updated in SMTMS which lead to confusion and resulted in warming up of the magnet with a minimum enery quench instead of the required training quench.To avoid such incidents in future, it is adviced to use the White board for recording the training quench currents clearly to help in tracking the training history of the magnet by subsequent shifts.

5) AQA upgrade: A new version of the AQA is expected to get released next week which has features like

a) To avoid spurious file geneartion, the AQA will ask the operator to validate the quench file whether the file is valid one or not.

b) The manual method of MIITS calculation will be easier.

Have a good day.

Shyam.