Email from Roger:
From carlini@jlab.org Thu Oct 7 13:10:36 2004 Date: Thu, 07 Oct 2004 11:02:18 -0400 From: Roger D. CarliniTo: Neven Simicevic Cc: Dave Mack , Mark Pitt , Jim Birchall , Juliette Mammei , Klaus Grimm , Greg Smith , Allena Opper , Tony Forest , Norman Morgan , Mike Finn , David Armstrong , Yongguang Liang , Shelley Page , Richard Jones Subject: Re: Qweak working group: House shaped Cerenkov detector Hi Neven: What about simple bars (say a 15cm wide case and 18 cm wide case) attached optically with a tilt of ~3 degrees. What happens if there are mirrors in the middle? Also, can we make the light collection more uniform by re-optimizing the overall rotation angle w.r.t. incident electrons? Best Regards Roger Neven Simicevic wrote: > Hi Folks: > > I looked at the properties of a house shaped Cerenkov detector shape of > which is attached to this mail. The result is that we have sufficient > number of photoelectrons, but there is a slight position dependence of > the number of photoelectrons, also attached. > > > Neven