Gain Notes for Revolution 1018

This is one of the later revolutions in the mission where the calibration
sources have become so weak that for the best energy determination a
IC Gain History table is needed.
 


	
JEM-X1: 

The Xe line analysis performed using the IC table shows very gain
correction with all except the very first science windows, and a few misfitted
outliers, having a Xe level 
within 1-2% of the ideal. As usual however, it is recommended that users
avoid the first few science windows for energy-sensitive applications.


Calibration source number 4 (purple/orange) is no longer
used for calibration purposes since an anode strip directly under the source
has broken and no useable signal comes from this area of the detector any
longer.

	

JEM-X2: 

The Xe line analysis performed using the IC table shows excellent gain
correction with all except the very first science windows, and the last
one, having a Xe level 
within 1% of the ideal. As usual however, it is recommended that users
avoid the first few science windows for energy-sensitive applications.

CAO 22/02/2011