Gain Notes for Revolution 43
	
JEM-X1: A quite normal revolution, with fine gain fitting. All of the
data from this revolution should be useable. 
The first eight points on each curve are the partial switch on of the high
voltage supply (HV) to the plate, for which HV is set 3 steps below its
nominal value to protect the instrument from intial high gain.
The strong gain decay during the partial switch-on shows just how
strong fast relaxation was in the beginning of the mission, while there is
as yet absolutely no sign of slow relaxation.

JEM-X2: A quite normal revolution with fine gain fitting. All the data from 
this revolution should be useable. The Xe analysis confirms that except for
the first few science windows, the Xe position is within about 1% of the
ideal for the entire revolution.
First few points on each curve belong to the partial switch-on for which HV is
set 3 steps below its nominal value. It is suggested that users avoid the first
few science windows in any revolution for any application requiring the very
best energy calibration.

CAO 11/12/2007