|
|
|
|
|
RICH1 |
|
RICH2 |
|
|
aerogel |
mean
ref. ind. |
total
length [mm] |
absorption
length [mm] |
full
acceptance (*) |
run
number |
full
acceptance (*) |
run
number |
|
MM-1,
MM-2 |
1.026 |
24.0 |
33.3 |
6.03 |
171 |
7.44 |
168 |
|
MD-9,
MD-6 |
1.044 |
20.7 |
45.3 |
8.81 |
168 |
10.59 |
169 |
(*) full acceptance = me1 (previous table)
= (mean of the number of photons in +-3 sigc around thc) / (geometrical acceptance for full coverage of active surface)
Comparison RICH1 / RICH2 / RICH 2001
|
|
|
|
|
RICH1 |
|
RICH2 |
|
RICH |
2001 |
|
aerogel |
mean
ref. ind. |
total
length [mm] |
absor.
length [mm] |
full
acc. (*) |
run
number |
full
acc. (*) |
run
number |
full
acc. (*) |
run
number (**) |
|
LM-1 |
1.048 |
20 |
15.4 |
6.42 |
175 |
8.27 |
50 |
8.46 |
140 |
|
LM-4 |
1.029 |
20 |
36.1 |
6.33 |
176 |
7.87 |
82 |
8.36 |
154 |
(*) full acceptance = me1 (previous table)
= (mean of the number of photons in +-3 sigc around thc) / (geometrical acceptance for full coverage of active surface)
(**) http://www-f9.ijs.si/~rok/aerorich/beamtest2001/ndet_summary.txt