Title :
Vacuum chamber for the 3 GeV SPEAR injector synchrotron
Author :
Morales, H. ; Hower, N. ; Cummings, U. ; Golceff, P. ; Li, W. ; Safranek, J. ; Voss, J. ; Wiedemann, H.
Author_Institution :
Stanford Synchrotron Radiat. Lab., CA, USA
Abstract :
A 3 GeV booster has been constructed at the Stanford Synchrotron Radiation Laboratory to function as a dedicated, full energy injector into the SPEAR storage ring. Electrons are injected at 120 MeV and accelerated at a cycle rate of 10 Hz to the final energy. The vacuum chamber for this synchrotron has been constructed to avoid eddy current effects due to the rapidly changing magnetic field. The chamber consists of stainless steel tubing of 0.3 mm wall thickness, compressed to an elliptical form, with external stiffening ribs. The suitability of such a vacuum chamber for booster synchrotrons has been tested at cycling rates of up to 15 Hz without intolerable heating or detrimental effects on the magnetic field for the beam.<>
Keywords :
beam handling equipment; electron accelerators; storage rings; synchrotrons; vacuum apparatus; 3 GeV SPEAR injector synchrotron; 3 GeV booster; SPEAR storage ring; Stanford Synchrotron Radiation Laboratory; beam; booster synchrotrons; cycle rate; cycling rates; eddy current effects; electrons; external stiffening ribs; full energy injector; heating; magnetic field; rapidly changing magnetic field; stainless steel tubing; vacuum chamber; Acceleration; Eddy currents; Electrons; Heating; Laboratories; Ribs; Steel; Storage rings; Synchrotron radiation; Testing;
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.1991.164939
