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    User name Guy Ron

    Log entry time 18:15:20 on May 17, 2008

    Entry number 238470

    keyword=BB Problems

    After making some sanity checks it seems that BB is in the wrong position (angle of about 32 degrees rather than 30.25). We have still been taking good data but we can improve the data taking by cutting less on the BB lead glass blocks. The problem is that the next kinematic will push the elctrons out of the BB acceptance (we cannot change that since BB is it the smallest possible angle) The other spokespeople have been e-mailed and I am waiting for replies from them. We will now move the HRS to center the elastic peak on BB as a further sanity check and if it is fine we will return to the previous setting and start the delta=0 data taking.