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User name Rouven Essig
Log entry time 11:54:04 on July 09, 2010
Entry number 331093
Followups:
keyword=Summary of Optics Runs
Summary of Optics Running 7/8/2010 & 7/9/2010
w/ one-pass beam
raster 4x4 MCC units (if ON)
Run-No. Target Current Sieve # Events Raster BPM p (MeV)
Comments
(uA) (IN/Out) (ON/Off)
1879 Ta 0.5 Out ~400K Off (4,2) 1160
1880 Ta 0.5 Out ~1M Off (4,2) 1160
1881 Ta 0.5 Out ~600K Off (4,2) 1160 Beam moved
during run, so maybe not all events useable
1883 Optics ~0.035 Out ~211K Off (4,2) 1160
1884 Optics ~0.035 Out ~1M Off (4,2) 1160
1889 Optics 3.0 Out ~90K ON (3,-1) 1160
Spot++ Run; looks good
1890 Optics 3.0 Out ~420K ON (3,-1) 1160 80%
dead-time !!! pre-scales changed for next run
1894 Optics 0.5 Out ~402K ON (3,-1) 1160 tuned;
current lowered; dead-time still high (73%);
1895 Ta 0.5 Out ~504K ON (3,-1) 1160 CW;
1896 Ta 2.0 IN ~1M ON (3,-1) 1160 CW;
1897 Ta 2.0 IN ~1M ON (3,-1) 1160 CW
1898 Ta 2.0 IN ~1M Off (3,-1) 1160 CW
1899 Ta 2.0 IN ~1M Off (3,-1) 1160 CW
1901 Optics 2.0 IN ~607K Off (3,-1) 1160 CW
1902 Optics 2.0 IN ~500K Off (3,-1) 1160 CW
1903 Optics 2.0 IN ~500K Off (3,-1) 1160 CW
1904 Optics 2.0 IN ~244K Off (3,-1) 1160 CW; T1
trigger only;
1905 Optics 2.0 IN ~500K ON (3,-1) 1160 CW;
raster on
1906 Optics 2.0 IN ~500K ON (3,-1) 1160 CW
1907 Optics 2.0 IN ~500K ON (3,-1) 1138.3 CW;
momentum change;
1908 Optics 2.0 IN ~500K ON (3,-1) 1138.3 CW
1909 Optics 2.0 IN ~500K Off (3,-1) 1138.3 CW;
raster off
1910 Optics 1.0 IN ~500K Off (3,-1) 1138.3 CW;
Note change in current + pre-scale.
1911 Ta 2.0 IN ~500K Off (3,-1) 1138.3 CW;
switched target
1912 Ta 2.0 IN ~500K Off (3,-1) 1138.3 CW
1913 Ta 2.0 IN ~500K Off (4,2) 1138.3 CW;
changed BPM; beam trip during run
1914 Ta 2.0 IN ~300K Off (4,2) 1138.3 CW
1915 Ta 2.0 IN ~500K ON (3,-1) 1138.3 CW; raster
on
1916 Ta 2.0 IN ~500K ON (3,-1) 1138.3 CW
1917 Ta 2.0 IN ~500K ON (3,-1) 1115.0 CW;
momentum change;
1918 Ta 2.0 IN ~500K ON (3,-1) 1115.0 CW
1919 Ta 2.0 IN ~500K Off (3,-1) 1115.0 CW; raster
off
1920 Ta 2.0 IN ~500K Off (3,-1) 1115.0 CW
1921 Optics 1.0 IN ~500K Off (3,-1) 1115.0 CW;
current and target change;
1922 Optics 1.0 IN ~500K Off (3,-1) 1115.0 CW
1924 Optics 1.0 IN ~500K ON (3,-1) 1115.0 CW;
raster on
1925 Optics 1.0 IN ~500K ON (3,-1) 1115.0 CW
1926 Ta 0.5 Out ~500K ON (3,-1) 1115.0 (LEFT ONLY)
CW only taking data for L-HRS (R-HRS has 1160);
1927 Ta 0.5 Out ~500K Off (3,-1) 1115.0 (LEFT ONLY)
CW only taking data for L-HRS (R-HRS has 1160);
1928 Optics 0.3 Out ~500K Off (3,-1) 1115.0 (LEFT
ONLY) CW only taking data for L-HRS (R-HRS has 1160);
1930 Optics 0.3 Out ~500K ON (3,-1) 1115.0 (LEFT
ONLY) CW only taking data for L-HRS (R-HRS has 1160);
1935 Optics 0.3 Out ~500K ON (3,-1) 1160 CW;
(taking data on both arms again);
1936 Optics 0.3 Out ~500K ON (3,-1) 1160 CW
1937 Optics 0.3 Out ~500K Off (3,-1) 1160 CW;
raster off
1938 Optics 0.3 Out ~500K Off (3,-1) 1160 CW
1939 Ta 0.5 Out ~500K Off (3,-1) 1160 CW; pre-
scale on RHRS too high; target change;
1940 Ta 0.5 Out ~500K Off (3,-1) 1160 CW
1941 Ta 0.5 Out ~500K Off (3,-1) 1160 CW
1942 Ta 0.5 Out ~500K ON (3,-1) 1160 CW
1944 Ta 1.0 Out ~500K Off (3,-1) 1045. 4 CW; -10%
momentum
1945 Ta 1.0 Out ~500K Off (3,-1) 1045. 4 CW
1946 Ta 1.0 Out ~500K ON (3,-1) 1045. 4 CW
1947 Ta 1.0 Out ~500K ON (3,-1) 1045. 4 CW
1948 Optics 1.0 Out ~500K ON (3,-1) 1045. 4 CW;
optics target
1949 Optics 1.0 Out ~500K Off (3,-1) 1045. 4 CW
1950 Optics 1.0 IN ~500K Off (3,-1) 1045. 4 CW; sieve
in
1951 Optics 1.0 IN ~500K Off (3,-1) 1045. 4 CW;
1952 Optics 1.0 IN ~500K Off (3,-1) 1045. 4 CW;
1953 Optics 1.0 IN ~500K ON (3,-1) 1045. 4 CW;
raster on
1954 Ta 2.0 IN ~500K Off (3,-1) 1045. 4 CW; Ta target
1955 Ta 2.0 IN ~500K Off (3,-1) 1045. 4 CW;
1956 Ta 2.0 IN ~500K Off (3,-1) 1045. 4 CW; includes
some T6 trigger;
1957 Ta 2.0 IN ~500K ON (3,-1) 1045. 4 CW; includes
some T6 trigger;
A copy of this log entry has been emailed to: jinhuang@jlab.org,vasulk@jlab.org