Minutes from target meeting held July 11 2008 in 892-2-009

These minutes are available also from:

http://wwwcompass.cern.ch/compass/detector/target/Minutes/2008/

a) Vlatko: strong smell when filling small LN2 target material storage dewar 
on Wednesday. D-butanol and two socks of extra ammonia were moved to the large 
open dewar that is normally used for the LN2 trap. For pumping the isolation 
vacuum a valve port needs to be welded to the dewar. Time estimate for repair 
one week.

b) Kaori: use NMR circuit model with lossy coaxial cable to estimate nonlinear
corrections to the polarized proton NMR signal. Problem to estimate the real
signal size at the input of the Q-meter. Different approach from Gerhard with
smaller estimated non-linear correction.

c) Takuma: with coil #8 as reference polarized signal the correlation with
coils #9 and #10 is not very good probably due to different line shape. One
possibility is to use an average with other polarized coils. Yuri: the 
line shape was affected by the slowly decaying current in G2 and possibly by
microwave leakage from middle cell cavity volume.