Title :
Beam measurement systems for the CERN antiproton decelerator (AD)
Author :
Chohan, V. ; Angoletta, M. ; Ludwig, M. ; Marqversen, O. ; Odier, P. ; Pedersen, F. ; Transquille, G. ; Raich, U. ; Soby, L. ; Spickermann, T.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
The new, low-energy antiproton physics facility at CERN has been successfully commissioned and has been delivering decelerated antiprotons at 100 MeV/c since July 2000. The AD consists of one ring where the 3.5 GeV/c antiprotons produced from a production target are injected, rf manipulated, stochastically cooled, decelerated (with further stages involving additional stochastic and electron cooling and rf manipulation) and extracted at 100 MeV/c. While proton test beams of sufficient intensity could be used for certain procedures in AD commissioning, this was not possible for setting-up and routine operation. Hence, special diagnostics systems had to be developed to obtain the beam and accelerator characteristics using the weak antiproton beams of a few 107 particles at all momenta from 3.5 GeV/c down to 100 MeV/c. These include systems for position measurement, intensity, beam size measurements using transverse aperture limiters and scintillators and Schottky-based tools. This paper gives an overall view of these systems and their usage
Keywords :
particle beam diagnostics; position measurement; proton accelerators; storage rings; antiproton beams; antiproton decelerator; beam size measurements; diagnostics; intensity measurements; position measurement; resonant Schottky pickup; scintillators; transverse aperture limiters; Cooling; Electrons; Particle accelerators; Particle beams; Physics; Position measurement; Production; Proton accelerators; Stochastic processes; Testing;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987359
