16
Yasuo MIAKE, Univ. of Tsukuba
Segmentation of Aerogel
•TOF
–~ 100 cm2 at 5 m
–Sensitive to all > 150
MeV/c
–Backgrounds (low energy e/g’s from
yoke & EM cal)
–Occupancy 10% in Au+Au
•Aerogel of n = 1.01
–Sensitive to all g
> 7.1
–Delta rays in Aerogel (~%)
–Muon from decayed pion
–Backgrounds
•GEANT required!
–Satoshi Takagi working on.
Guestimate from pt distr. (RQMD)
TOF
Aer
300 cm2 at 4m
100 cm2 at 5m
Segmentation
33 k
158 k
Multiplicity
Aerogel
(pt>0.75)
TOF
(pt>0.18)
As R&D,
segment size of 12 x 12 cm2
- 20 x 20 cm2 will be
studied !
