Privacy and Security Notice
Settings for fpp_1h_q04
-
Goal
To meas
-
Beam Energy
1.67 GeV
-
Carbon Blocks
3"
-
Beam position
less than 0.25 for x and y for 3A and 3B
-
Raster size
2.0x2.0mm in SPOT .
-
Beam Current
2 microA. or maximum possible with deadtime < 30%. Expect rate
of 2,200 hz at 2 microA.
-
Target
15cm LH2
-
Spectrometer settings
| Spectrometer |
Momentum |
Angle |
Collimator |
| Electron |
1.438 GeV |
58.97° |
6msr |
|
|
|
|
| Proton |
0.6946 GeV |
24.45° |
6msr |
-
Data taking
-
The T5 prescale should be one. The prescales for T1,T2,T3
and T4 should be set to give less than 2 Hz trigger rate for each. The
T8 prescale should be set to maximum.
The trigger setup needs to be set for proton momentum.
The data taking time is estimated to be 3 hours. Will need to update after
looking at carbon scattering efficiency.
Need 2.2x10+6 total triggers with good fpp and scattering between
5 and 20 degrees in carbon .