1. Runprogram: Survey Report
All chambers (BPC and MWPC): distance from HEC known
HEC1/HEC2: horizontal position: cm, in consequence ‘x=0’ at tick =
HEC1/HEC2: vertical position: 8 mm lower, i.e. beam in ‘official 3D drawing’ in beamhut is up by 8 mm!
May 1, 2019
CBTEC2 Run Preparation Meeting

2. Run: Status HV (after LAr filling)
Many problems with OPC server: few crashes per day, then difficult to restart, no read-out
HEC 2: short in Mod#3 of HEC2, EST1
HEC 1: ‘sick channels’: Mod#1 and 7, LSEG=2, 1600 and 1500 rather than 1800
FCAL: ISEG problems (see above…), module replaced
EMEC: tests underway using CAEN HV, plan to replace ISEG module
CTC: OK
May 1, 2019
CBTEC2 Run Preparation Meeting

3. Intercalibration of subdetectors!
Runprogram: Proposal
Intercalibration of subdetectors!
Grid of impact points for high statistics energy scans: electrons and pions (+ and -) at 10, 20, 40, 60, 80, 100, 120, 150, 200 and muons (120?) in EMEC/HEC region and FCAL.
Y=10
X=+70
X = - 70
Y=70
X= 0
X=+160
X=-160
EMEC/HEC
Y=-150
X= ??
Y=-250
FCAL
May 1, 2019
CBTEC2 Run Preparation Meeting

4. CBTEC2 Run Preparation Meeting
Runprogram: Proposal
Signal shape studies
EMEC/HEC: Scan around each ‘standard grid point’ with electrons (120) and pions (150/200) 12 points with Δx = 20 and Δy = 20 (up to ± 60)!
FCAL: dito with 4 points with Δx = 60 and Δy = 60 ??
General running: 16 time slices and medium gain (or autogain) for HEC and high+medium fixed gains (or autogain) for EMEC+FCAL. Special signal shape studies: 32 time slices
May 1, 2019
CBTEC2 Run Preparation Meeting

5. CBTEC2 Run Preparation Meeting
Runprogram: Proposal
Try to get electrons directly into HEC to obtain αem : E=120/150
Stability Runs: electrons (120) and pions (150) at two EMEC/HEC and two FCAL standard grid points. Typically every third-fourth (?) day.
Y=+150
x=+200
x=-200
May 1, 2019
CBTEC2 Run Preparation Meeting

6. CBTEC2 Run Preparation Meeting
Runprogram: Proposal
Horizontal scans with electrons (120 and 150) and pions (120 and 200) and muons (120):
EMEC/HEC
Y=10
X = → +250
Δ = 10
Y=70
Y=-80 ?
Δ = 60 ?
Crack!
FCAL
May 1, 2019
CBTEC2 Run Preparation Meeting

7. CBTEC2 Run Preparation Meeting
Runprogram: Proposal
Vertical scans with electrons (120 and 150) and pions (120 and 200) and muons (120):
Scan with normal beam in small steps from EMEC/HEC until FCAL, then step back to EMEC/HEC and redo with wide beam and larger stepsize.
X = 0
y = → +250
Δ = 10 / 60
X = +160
X = - 160
May 1, 2019
CBTEC2 Run Preparation Meeting