TAMU visit notes

Gas system
•	Pump out for water, recirculate through filters for all other impurities
•	RGA highly recommended
•	Pumpout might not even be necessary- filters have high capacity
•	Cold finger on tank not necessary- simply freeze out Xe into (aluminum) gas bottle, and refill to desired pressure, vlave off and start recirculating
•	2-3kg bottle needed
•	need filter on pump output; JW using Sagelock SS-4FWFS-VCR , 0.5 micron recomended but maybe up to 3 micron
•	use dry vac pump only
•	argon bleed during pumpdown gives flow????
•	user right angle vac valve instead of ball valve (should be good for 300 psi)-NEED to CHECK as not pressure rated
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Wire planes
•	Wire clamped through hole in screw (see pix) not sure how this works
•	JW recommend a simple slotted frame
•	DECISION TO MAKE- do we start with wires or with mesh
•	JW used a frame pretensioner to minimize frame distortion upon tension release

Mesh planes
•	JW has design already for 2-piece selft tensioning frame
•	they can use an existing clamp ring to hold pretension at low level while tightening frame
•	possible problem with rods and spacers- suggestion by TM for split holes- not desirable for stress reasons -DS
•	we need to quantify voltage holding and temp range of bakeout to design- see initial e.note by DS
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