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GATING GEM. GDD Meeting December the 17 th Gabriele Croci. Experimental Setup. 8.9 keV Copper X-Rays. Drift. A. 13 mm. E D. Preamp GEM. B. 2 mm. E T1. Gating GEM. C. 3 mm. E T2. Bottom GEM 1. 2 mm. E T3. Bottom GEM 2. 2 mm. E I. No PreAMP GEM Measurements. C. B. Pedestal. - PowerPoint PPT Presentation
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GATING GEM
GDD Meeting December the 17th Gabriele Croci
Experimental Setup
2
8.9 keV Copper X-Rays
ED
ET1
ET2
ET3
EI
13 mm
2 mm
3 mm
2 mm
2 mm
Drift
Preamp GEM
Gating GEM
Bottom GEM 1
Bottom GEM 2
A
B
C
No PreAMP GEM Measurements
Pedestal
CB
3
No Pre GEM Scans
4
PreAmp GEM Spectrum
Pedestal
B C
A
5
PreGEM Voltage Scan
6
Gate GEM Scans with PG on
7
ET1 Scans
ΔVPreGEM = 380 V ΔVPreGEM = 400 V
ΔVPreGEM = 420 V
8
ED ScansΔVPreGEM = 380 V ΔVPreGEM = 400 V
ΔVPreGEM = 420 V
9
Current Measurements Setup
10
ED
ET1
ET2 = 0
ET3 = 0
EI = 0
13 mm
2 mm
3 mm
2 mm
2 mm
Drift
Preamp GEM
Gating GEM
Bottom GEM 1
Bottom GEM 2
8.9 KeV X-Ray
VGGb = -100
Ionization Current Measurement
11
Pre GEM Voltage Scan
12
Ed Scans
13
ET1 Scans
14
