🚀 go-pugleaf

Bruce Dunn has asked about the cost of liquid Helium in large quantities.  

Sorry Bruce, I could not get the cost of Helium on our large contract.  It is
apparently tied in with a lot of other things, including operation and service.

I did find out about our "small" contract.  It is a three year contract for 
200 to 300 five hundred liter dewars per year.  In this quantity (100000 liters per year for three years) it is $2.35 per liter.  I assume this is vented off
to the atmosphere.  While we have a collection system here at Fermilab, there
are a lot of places where it is used where it is uneconomical to collect the
gas.

If you are really serious about large quantities for your "Bombastotron" 
proposal, I can try to run down an expert for you.  We have a very large main
liquifier, and many small satelite refrigerators, a collection system, and it
also seems like we have some sort of operating contract with Air Products.  
Let me know.  

Tom Droege