From: Frank Gerigk
Sent: Wednesday, November 08, 2006 12:13 PM
To: Wim Weterings; Brennan Goddard; Tony Fowler; Jan Borburgh; Klaus Hanke
Subject: head-tail dump
Dear all,

in the last meeting we were talking about the amount of beam that goes into the head-tail dumps. For the time being we assume that the RF system will give us a head (in front of each pulse) of 10-20 us (10 is optimistic with some more controls effort, and 20 is on the pessimistic side). During this head the beam goes from 0 to 40 mA pulse current, so you can assume an average current of 20 mA during that time. The tail should be very short, we assume something like 1 us.

It may be that the head is even smaller because we loose some of it in the bending magnets of the transfer line, but this we need to look at more carefully.

Cheers, Frank