Difference between revisions of "HRRL 4-13-09"
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| on + Ground strap + insulation|| 990 Hz || 3 V =60 mA || <math> \pm 2</math> mV on 1 mus scale [[Image:ScopePic_4-13-09_5.png|50px]] | | on + Ground strap + insulation|| 990 Hz || 3 V =60 mA || <math> \pm 2</math> mV on 1 mus scale [[Image:ScopePic_4-13-09_5.png|50px]] | ||
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| + | The insulation was placed between the mylar bag and the BNC conenctor on the HV board. The inside of the mylar bag is conducting. | ||
=== GEM in HRRL exp cell === | === GEM in HRRL exp cell === | ||
Revision as of 22:51, 13 April 2009
Default HRRL running Conditions
| Pulse Width | Rep Rate | Energy | |
| 8 mA | 25 ns | 1 Hz | 3 MeV |
run plan
| Date | Task |
| 4/11/09 | Vaho stil running til 7 pm, configure Motion Sliders |
| 4/12/09 | Build shutter and unstack beam line |
| 4/13/09 | Install Aluminum brick shutter and interlock with HRRL, test beam transport: Run HRRL accelerator from 3pm til 5 pm (25 ns pulse width, 3 MeV electrons, 1 Hz rep rate, 8 mA peak) |
| 4/14/09 | Repair Freon leak in Chiller, HRRL down, Install DAQ |
| 4/15/09 | Run HRRL from 9 am til 5 pm (25 ns pulse width, 3 MeV electrons, 1 Hz rep rate, 8 mA peak), Do Plateau measurements and test readout |
| 4/16/09 | Run HRRL from 2 pm til 5 pm, position studies using Drift chamber and GEM |
| 4/17/09 | Run HRRL from 2 pm til 5 pm, efficiency tests |
| 4/20/09 | Run HRRL from 9 am til 5 pm finish detector tracking studies |
4/13/09
Electron Dose tests
Shutter In
0.1 mrad/hr outside HRRL experimental door.
2.7 mrad/hr in the end of HRRL experimental hallway.
Shutter Out
0.1 mrad/hr in Dr. Forest office.
Sintillator tests
RS1 = 2 aluminum blocks are in front of Long BLue Scintillator plugged into the cable patch pannel 223A2
FS1 = Small scintillator is in 223A1
| HV SC1 | HV RS1 | Desc. |
| 840 | 840 |
GEM noise
100 ns RF pulse width
GEM in Accelerator room
| Bag | Rep Rate | Current | Peak to peak noise |
| Off No ground strap | 990 Hz | 3 V =60 mA | mV on 1 mus scale 
|
| Off + ground strap | 990 Hz | 3 V =60 mA | mV on 1 mus scale 
|
| on No Ground strap | 990 Hz | 4 V =80 mA | mV on 1 mus scale 
|
| on + Ground strap | 990 Hz | 3 V =60 mA | mV on 1 mus scale 
|
| on + Ground strap + insulation | 990 Hz | 3 V =60 mA | mV on 1 mus scale 
|
The insulation was placed between the mylar bag and the BNC conenctor on the HV board. The inside of the mylar bag is conducting.