The status of HERA (storage ring)

Author

Wiik, B.H.

Author_Institution

Inst. fuer Experimentalphys., Hamburg Univ., Germany

fYear

1991

fDate

6-9 May 1991

Firstpage

2905

Abstract

The preaccelerator chains are operational, delivering 13-GeV electron (positron) and 40-GeV proton beams to the HERA (Hadron Electron Ring Accelerator) rings. The electron ring has achieved 27.5 GeV at 5% of the design intensity and with a beam lifetime of several hours. The first octant of the proton ring was cooled down, the quench protection was successfully tested, and the optics was checked using a 7-GeV positron beam. The HERA proton ring was completed in early November 1990, and it has been at cryogenic temperatures since mid December. The steady-state condition at 4.4 K could easily be established, and the measured cryogenic heat load of the ring is below the predicted value.<>

Keywords

electron accelerators; proton accelerators; storage rings; HERA; Hadron Electron Ring Accelerator; beam lifetime; cryogenic heat load; positron beam; preaccelerator chains; proton ring; quench protection; storage ring; Cryogenics; Electron accelerators; Electron beams; Electron optics; Particle beams; Positrons; Protection; Proton accelerators; Storage rings; Testing;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PAC.1991.165141

Filename

165141