Mounting of silicon strips and telescopes
The solid angle has to be increased because of the low multiplicity. The strips
will be mounted at 15 cm target distance under 32 degree in the x-y-plane. With
a 1cm beamspot there will be no overlapp between Silicon strips and ZDO.
Acoording to Simulations the integral multiplicity will be in the order of
10 -> 2 adjacaent strips will be read out together -> 48 instead of 96
channels.
Four telescopes will be put in the gap between two Si strips, two will be under
40 degree, two under backward angle (Have a look at the
Pictures of the
setup).
HV interlock
Discussion whether a pressure interlock for TOF and ZDO HV should make sense.
Alternatively one could think about a (loud) warning bell.
Miscallenous
- Readout of Si strips horizontal or vertical?
- Preamps of telescopes inside or outside of target chamber? Some resolution
tests will be done by Xi.
- New safety regulations: Experimentalists have
to read the saftey instructions and to signed the sheet which will be in the
Cave B safety book at the beginning of the beam time.
Next meeting: 6.12.1994 - 10:00