Desorption of oxygen and inert gas at {HEAD ~ opposite ends} of the LiAgX bed allows {TAIL ~ the inert gas} to be recovered with minimum oxygen contamination 
Desorption of oxygen and inert gas at { HEAD ~ opposite ends } of the LiAgX bed allows { TAIL ~ the inert gas } to be recovered with minimum oxygen contamination
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH