Antiproton Decelerator (AD)
The decelerator
Table from https://indico.cern.ch/event/361413/
| Momentum pbar | 300 MeV/c | 100 MeV/c |
|---|---|---|
| Electron energy | about 27 keV | about 3 keV |
| Electron current | about 2.2 A | about 200 mA |
| Cooling length | 1.5 m | |
| Drift magnet field | 590 Gauss | |
| Electron beam radius | 25 mm | |
| Cooling time | 16 s | 15 s |
| $\epsilon_x$ / $\epsilon_y$ | 3 / 3 ($\pi$ × mm × mrad) | 0.8 / 0.5 ($\pi$ × mm × mrad) |
| dp/p | 10-4 | < 7 × 10-5 |
Technical drawings
They can be found on CDD under AD_ project, under “beecn0” folder. Of interest is the overall layout also available here
AD E-COOLER
Powering scheme
Detailed electrical schematics available here (by A. Frassier)
New AD E-COOLER
Some links
- 14 Oct 2020: New AD Electron Cooler : Kick-off meeting - indico
Old AD E-COOLER
Some links
- SY-BI repository of documentation on EDMS
- 1997: R. Brown and G. Tranquille, Magnetic Field Measurements of the LEIR Electron Cooling Device EDMS #2340163
- Description of magnetic measurements performed on the now-AD electron cooler. The document gives mainly a description of the measurements, but not much info about the actual results.
- Jun 1984: A. Wolf, Magnetic field measurements in the electron cooling device for LEAR - metadata CDS