TY  - CONF
AU  - Montag, C.
AU  - Stulle, F.
TI  - Simulation of Orbit Correction and Synchrotron Radiation Aspects in the Upgraded HERA Interaction Regions
IS  - DESY-M-00-04ZK
CY  - Hamburg
PB  - DESY
M1  - PUBDB-2016-02955
M1  - DESY-M-00-04ZK
SP  - 370-372
PY  - 2000
AB  - In the upgraded HERA interaction regions, about 30kW of synchrotron radiation have to be passed safely through the high energy physics detectors. At a distance of about 11m from the interaction point a fraction of this synchrotron radiation is absorbed, while the remaining part is passed further on through the separated beam pipes. To protect the vacuum chamber between the IP and the 11m absorber against accidential mis-steering of the synchrotron radiation fan, four emergency absorbers are installed. On the other hand the HERA detectors are very sensitive to backgrounds from backscattered synchrotron radiation photons. The aperture of absorbers and other elements in the downstrem beamline have to be chosen such as to guarantee acceptable background conditions even with moderately missteered electron beams. To investigate the feasibility of this scheme, extensive simulations have been carried out taking into account realistic machine errors, such as magnet misalignments, monitor errors, optics distortions, etc. It is shown that under realistic conditions the synchrotron radiationfan can be safely controlled.
T2  - The 7th European Particle Accelerator Conference EPAC 2000
CY  - 26 Jun 2000 - 30 Jun 2000, Vienna (Austria)
Y2  - 26 Jun 2000 - 30 Jun 2000
M2  - Vienna, Austria
KW  - talk: Vienna 2000/06/26 (INSPIRE)
KW  - electron p: storage ring (INSPIRE)
KW  - luminosity: upgrade (INSPIRE)
KW  - synchrotron radiation (INSPIRE)
KW  - radiation protection (INSPIRE)
KW  - shielding (INSPIRE)
KW  - alignment: error (INSPIRE)
KW  - numerical calculations (INSPIRE)
KW  - DESY HERA Stor (INSPIRE)
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)8
DO  - DOI:10.3204/PUBDB-2016-02955
UR  - https://bib-pubdb1.desy.de/record/301896
ER  -