JR Macdonald Laboratory 1998 Summer Short Course:

	Introduction to Vacuum Physics and Technology:	
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      Problem 5.1) Problem 4.1 predicted a H2 fore line pressure 
	of 236 mTorr or 56 mTorr depending on the fore line pump.
	What pressures are you expecting to read on the TC gauge? 




      Problem 5.2) A resistance heated nude Bayard-Alpert ion
	gauge has an sensitivity of 10/Torr and an X-ray limit of
	4*10^-10 Torr. Being controlled with a controller for
	electron bombardment degaussed ion gauges (S=25/Torr) it
	reads a pressure 5.0x10^-10 Torr in a system which is <90%
	Hydrogen. What is the most likely pressure? 




      Problem 5.3) Calculate the fraction of hydrogen, water, 
	nitrogen, carbon monoxide and carbon dioxide from the 
	following RGA scans: