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    User name M.Shabestari

    Log entry time 08:05:46 on April28,2008

    Entry number 235425

    keyword=Owl Shift Summary

    Owl shift summary April 28, 2008

    SL : Mitra Shabestari
    TO : Konrad Aniol
    3rd : Konrad Aniol/Mitra Shabestari


    Summary
    ========

    pi0 Production : Kinematics L Part(III)

    BigBite = 43.6 degrees, BigBite current = 390.0 A (setpoint); 388.1 A (readback)
    LHRS = 12.5 degrees, LHRS momentum = 1.007 GeV/c
    RHRS = 105.0 degrees, RHRS momentum = 0.4596 GeV/c

    Target: 6 cm LH2 in loop1

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    00:00 Shift started. Run# 4191 (LHRS), and run# 20789 (RHRS) have already started. We continue taking production data.

    00:12 ----> Run# 4192 ; events = 1 M

    00:19 ----> Run# 4193 ; events = 1 M

    00:28 ----> Run# 4194 ; events = 1 M

    00:36 ----> Run# 4195 ; events = 1 M

    00:46 ----> Run# 4196 ; events = 1 M

    00:55 ----> Run# 4197 ; events = 1 M

    01:04 ----> Run# 4198 ; events = 1 M

    01:12 ----> Run# 4199 ; events = 1 M

    01:20 ----> Run# 4200 ; events = 1 M

    01:27 ----> Run# 20790 ; started Right HRS..... events = 167 K

    01:31 ----> Run# 4201 ; events = 1 M

    01:39 ----> Run# 4202 ; events = 1 M

    01:48 ----> Run# 4203 ; events = 1 M

    01:56 ----> Run# 4204 ; events = 1 M

    02:11 ----> Run# 4205 ; events = 1 M

    02:29 ----> Run# 4206 ; events = 1 M.....Good run. Missed to click on the "accept" botton.

    02:30 ----> Run# 4207 ; events = 1 M

    02:39 ----> Run# 4208 ; events = 1 M

    02:47 ----> Run# 4209 ; events = 1 M

    02:56 ----> Run# 4210 ; events = 1 M

    03:10 ----> Run# 4211 ; events = 1 M

    03:18 ----> Run# 4212 ; events = 1 M

    03:27 ----> Run# 4213 ; events = 1 M

    03:35 ----> Run# 20791 ; started Right HRS..... events = 153 K

    03:38 ----> Run# 4214 ; events = 1 M

    03:47 ----> Run# 4215 ; events = 1 M

    03:56 ----> Run# 4216 ; events = 1 M

    04:09 ----> Run# 4217 ; events = 1 M

    04:14 ----> Run# 4218 ; events = 1 M

    04:23 ----> Run# 4219 ; events = 1 M

    04:31 ----> Run# 4220 ; events = 1 M

    04:40 ----> Run# 4221 ; events = 1 M

    04:50 ----> Run# 4222 ; events = 1 M

    04:59 ----> Run# 4223 ; events = 1 M

    05:09 ----> Run# 4224 ; events = 1 M

    05:18 ----> Run# 4225 ; events = 795 K

    05:25 ----> MCC called. They are going to take the beam away for ~10 minutes.

    05:38 ----> Beam is back.

    05:39 ----> Run# 4226 ; events = 1 M

    05:39 ----> Run# 20792 ; started Right HRS..... events = 158 K

    05:49 ----> Run# 4227 ; events = 1 M

    06:03 ----> Run# 4228 ; events = 1 M

    06:07 ----> Run# 4229 ; events = 1 M

    06:19 ----> Run# 4230 ; events = 1 M

    06:29 ----> Run# 4231 ; events = 1 M

    06:38 ----> Run# 4232 ; events = 1 M

    06:53 ----> Run# 4233 ; events = 1 M

    07:01 ----> Run# 4234 ; events = 1 M

    07:09 ----> Run# 4235 ; events = 1 M

    07:21 ----> Run# 4236 ; events = 1 M

    07:27 ----> Run# 4237 ; events = 1 M

    07:37 ----> Run# 4238 ; events = 1 M

    07:41 ----> Run# 20793 ; started Right HRS

    07:46 ----> Run# 4239 ; events = 1 M

    07:56 ----> Run# 4240 ; events = 1 M

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Very smooth and productive shift.

    Beam enery was 1192.39 MeV.

    For the current kinematics ( L ):
    Total charge collected by the start of the owl shift = 0.087 C
    Total charge collected at the end of the owl shift = 0.144 C