Author :
Fishe, A.S. ; Alzofon, D. ; Amettt, D. ; Bong, E.L. ; Brugnoletti, B. ; Collins, B. ; Daly, E. ; Gioumousis, A. ; Johnson, R. ; Kulikov, A. ; Kurita, N. ; Langton, J. ; McCormick, D. ; Norieg, R. ; Smith, S. ; Smith, V. ; Stege, R. ; Bjork, M. ; Chin, M.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
PEP II is a 2.2-km-circumference collider with a 2.1-A, 3.1-GeV positron ring (the Low-Energy Ring) 1 m above a 1-A, 9-GeV electron ring (the High-Energy Ring); both are designed for 3 A maximum. We describe the beam diagnostics for HER commissioning, starting in May 1997. LER commissioning will follow in 1998. The beam size and pulse duration are measured using near-UV synchrotron light extracted by grazing-incidence mirrors that must withstand 200 W/cm
Keywords :
colliding beam accelerators; electron accelerators; particle beam diagnostics; storage rings; 1 A; 2.1 A; 3.1 GeV; 9 GeV; High-Energy Ring; Low-Energy Ring; PEP-II B factory; beam diagnostics; collider; electron ring; grazing-incidence mirrors; near-UV synchrotron light; positron ring; Current measurement; Electrons; Laboratories; Linear accelerators; Mirrors; Particle beams; Production facilities; Pulse measurements; Strontium; Structural beams;
