Title :
Stripping foil losses and space charge blowup in the FNAL booster
Author :
Johnstone, C. ; Bogert, D. ; Lackey, J. ; Tomlin, R.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
A automated profile measuring system using single wire scanners has been implemented in the Fermilab Booster synchrotron. It allows the beam profile to be measured on a turn-by-turn basis. More than 30 profiles after injection can be accumulated before the wire degrades the beam significantly. As the Fermilab booster utilizes a multiturn injection scheme, foil losses can be studied by comparing one- and two-turn injection and varying the number of passes a low-intensity beam makes through the foil. By using the low-intensity results, foil losses can be eliminated from high-intensity, multiturn injection data, thereby allowing a quantitative look at space-charge blowup. The results obtained for foil losses and space-charge blow-up in the Fermi National Accelerator Laboratory (FNAL) booster are presented here.<>
Keywords :
beam handling equipment; beam handling techniques; synchrotrons; FNAL booster; Fermi National Accelerator Laboratory; Fermilab Booster synchrotron; automated profile measuring system; beam profile; low-intensity beam; multiturn injection scheme; one-turn injection; single wire scanners; space charge blowup; stripping foil losses; turn-by-turn basis; two-turn injection; Apertures; Data analysis; Degradation; Extraterrestrial measurements; Laboratories; Particle beam injection; Particle beams; Space charge; Synchrotrons; Wire;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164470
