2. ELENA scrapers ELENA status for BI – electronics and software
05/27/2016
Pierre Grandemange
CERN BE-BI-EA

3. ELENA

4. Scrapers geometry

5. Scrapers geometry

6. Scrapers geometry

7. Detectors pbar -> pions 255mm 70mm 200mm plastic scintillator
Polyvinyltoluene (EJ-2125)
50mm (radius)*2mm
10000 photons/MeV (e-)
rise/decay time : 0.9/2.4 ns
255mm
70mm
200mm
9/12/2018
Document reference

8. Detectors H-/protons -> electrons MCP detectors 4 detectors
18.8 mm active area
68 degree from mvmt axis
Readout at high voltage -> 3kV
9/12/2018
Document reference

9. Detectors
9/12/2018
Document reference

10. Acquisition pbar Strategy : same system as at the AD Issue Ongoing
EJ-212 scintillator (ex NE 102A) + PM
Scaler CAEN V560
HV power supplies
Issue
CAEN V560 obsolete
Software : “SCAL” in GM implementation -> obsolete
Ongoing
Open discussion with Felix Ehm (AD and ELENA coordinator) to define how to adapt AD system to ELENA
9/12/2018
Document reference

11. Acquisition (H-/protons)
DAQ at high voltage!
1 HV box with :
ELMA VME crate
VSCRAP PCB
3 HV power supplies ISEG (out of HV box)
VSCRAP : similar to IPM electronics
Photo of BIPM VME crate
9/12/2018
Document reference

12. Schedule Protons detectors VSCRAP PCB tests in lab : 3 weeks
Specifications for software mid June, similar to IPM
HV box : expected delivery in July
Control software of ISEG HV cards can start now
Pbar detectors
Scaler control to be defined, meeting with Felix Ehm soon
9/12/2018
Document reference