Gain Notes for Revolution 37
	
JEM-X1: No scientific data or gain history for this unit.


JEM-X2: A quite normal revolution with fine gain fitting. All the data from 
this revolution should be useable. However, all the science data in this
revolution is in Restricted Imaging mode, which is only partially supported by
the OSA software, and no Xe analyis has been done of this data.
A full Xe line analysis is required
to confirm that the gain calibration has behaved correctly.
First few points on each curve belong to the partial switch-on for which HV is
set 3 steps below its nominal value. As always, however, it is suggested that
users avoid the first few science windows in each revolution since this is
where the instrument warms up and gain variations across the plate settle down.

CAO 11/12/2007