Difference between revisions of "BCM calibration E06007"

Revision as of 21:54, 3 February 2010

Wiki Entry

PVDIS entry

Steps for BCM calibration

The Run faraday cup vs I0L02 is in [BcmLog125]

Faraday vs Injector current - From BCMLOg-125 - 20Feb07

Faraday_Current = (0.28+-0.03) + (0.994+-0.001) * IBC0L02_Current

Faraday / Injector = 1.0027 +- 0.0006 , for Current >5uA

Ratio Faraday vs I0L02 (All range)	Ratio Faraday vs I0L02 (Current > 5uA)

Check of the Average Beam Current used in E06007 -- Only initial optics calibration runs used low currents -

A complete list of run information can be found in the link in the initial page: https://hallaweb.jlab.org/wiki/index.php/E06-007

EPICS calibration from bcmlog-127 (Offsets without current in Hall from bcmlog-125)

@@ Line 69: / Line 69: @@
 -----
+EPICS calibration from bcmlog-127 (Offsets without current in Hall from bcmlog-125)
+{| border="1"
+! || Upstream	|| Downstream
+|-
+!Offset  || 0.00091912 +/- 1.015e-07 || 0.000287296 +/- 5.191e-08
+|-
+!Constant  || 43.1574          +/- 0.05343 ||  42.459           +/- 0.06057
+|-
+!Constant (I>5uA)  ||  43.2517          +/- 0.01577 ||  42.5992          +/- 0.01574
+|-
+|}
+[[Image:EPICS_CALIB.gif]]