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    User name Eric Voutier

    Log entry time 16:12:33 on March 5,2000

    Entry number 35647

    keyword=Shift Summary


    New Crew on shift: Eric Voutier, Ron Gilman, Jeff Templon
    ***************

    .9:15... beam fluctuations, MCC is investigating the problem at the injector level
    .9:25... still beam fluctuations, MCC is ask for a 1/4 of an hour to cure
    10:15... beam is back
    11:45... end Kin#93, moving to Carbon

    Carbon pointing will be made at the same time as the energy measurement while
    the beam is still in achromatic mode and with 5uA.

    11:40... give over the beam to Arun for Arc energy measurement and start Carbon
    pointing measurements. Starting with HARP scan along the beam line.

    11:55... Hall C wants to do some calibration studies and needs to have us running
    at the highest current. Therefore, we are going back to the helium 3 target and do
    some measurement with collimator in up to the time that Hall C is done.

    ---> Regulation rule: when working with small current, energy lock should be on Hall C

    12:50.. go back to Carbon target while Arun is taking over the beam

    13:20.. Arun notices that the last HARP scan (entry 35491) indicates a beam spot
    about 300um x 300um. If such a spot would barely not influence the quality of
    elastic scattering data, it MUST be tuned again at the usual 100um x 100um value
    for quasielastic scattering.

    15:30 Harp Scan has been delivering the values X/Y = 234um/245um a bit too large
    for quasielastic standard

    -# Run history

    ..2613..... Kin#93 / He3 / 1.804 M / good run.... 1.804 M
    ..2614..... Kin#93 / He3 / 0.742 M / good run.... 2.546 M
    ..2615..... Kin#93 / He3 / 0.656 M / good run.... 3.202 M
    ..2616..... Kin#93 / He3 / 0.166 M / good run.... 3.368 M
    ..2617..... Kin#93 / He3 / 1.803 M / good run.... 5.171 M
    ..2618..... Kin#93 / He3 / 1.000 M / good run.... 6.171 M
    ..2619..... Kin#93 / C12 / 30 k events / good run
    ..2620..... Kin#93 / He3 / Collimator in / 0.910 M good run
    ..2621..... Kin#93 / C12 / Collimator out / good run (beam spot changing size)
    ..2622..... Kin#93 / C12 / Collimatour out / 1.0 M / good run