David Notebook: Difference between revisions

'''8/26/14'''

Replaced the deuterium cylinder. It was taking a lot more from the old one to get to the same pressure than it used to (we usually fill a small tube between the cylinder and a secondary valve and put in multiples of that amount). Since it was taking more, the cylinder must have been lower pressure. We probably could have used the old one for a bit longer, but since the cavity hasn't been behaving well I thought it was worth switching now. Maybe something weird was going on, like the deuterium pressure was low enough that a significant amount of air or nitrogen was getting into the cavity through small leaks in the tubing.

 

'''8/25/14'''