Gain Notes for Revolution 336
	
This revolution is broken up by a long period in which the unit was not
activated due to high radiation levels. Consequently, although the gain 
smoothing has worked well, most of the data from this revolution is probably
unuseable since it is either a) non-existent b) heavily affected by relaxation
effects in the microstrip plate or c) affected by gain suppression on the detector
plate due to the lingering high radiation background. The large increase in  gain 
after the last switch on in the revolution indicates the degree of relaxation 
that could take place during the inactive period, which is longer than the usual
shutdown period during the radiation belt passage. The Xenon line analysis
clearly shows the affect of gain suppression on the plate which pulls the Xe
line down below 29 keV. This means that all energy values will be about
3-5% too low if calculated using the ISDC gain history table.

For better gain determination use OSA 6.0 which will automatically use the IC
gain history table delivered by the instrument team to ISDC and corrected offline
for this effect.

CAO 22/12/2006