Three bad news items (thats what we get for trying to plan)

1) Helium contamination. The contamination does not allow the new debuncher 
   pickups to stay at their design operating temperature. It also affects 
   the E835 cryostat (the dewar can provide helium for a small period of 
   time). The helium is expect to be better on Monday and liquid helium
   temperature will be possible.

2) The refrigeration engine used by the new debuncher cooling system to
   produce liquid helium has self destructed (not due to item 1). The 	   
   rebuilding the engine will start on Monday. Stacking can occur with the
   debuncher at liquid Nitrogen temperature...rate will not be as high. At
   this time I don't know if helium gas flow to the E835 cryo system will
   be affected or not while this rebuid occurs.

3) The reason why stacking did not get going is that the aperture of the 
   debuncher is ~3(~2) smaller in the horizontal(vertical) plane. The new
   cooling pickups are the new items in the ring and appear to be the problem. 
   Each tank has upstream and downstream position motors. However, the 5mm
   travel distance is not enough; moving a single tank can make the aperture
   smaller but not better. Work continues to try and understand; it may take 
   another round of surveying.

Needless to say, I would not expect beam Sun, Mon and possibly Tue. I'll
send out more information tomorrow.

					Keith