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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/31312298
Record Status
Checked
Record Id
31312298
Title
Position Resolution of Optical Fibre-Based Beam Loss Monitors Using Long Electron Pulses
Contributors
M Kastriotou (CERN and Cockcroft Institute and Liverpool U.)
,
S Döbert (CERN)
,
FS Domingues Sousa (CERN)
,
E Effinger (CERN)
,
W Farabolini (CERN and CEA/DSM/IRFU, CEA/DSM/IRFU, France)
,
EB Holzer (CERN)
,
E Nebot Del Busto (CERN and Liverpool U.)
,
W Viganò (CERN)
,
RP Rassool (Melbourne U.)
,
CP Welsch (Cockcroft Inst., and Liverpool Univ.)
,
MJ Boland (ASCo, Clayton, and SLSA, Clayton, Australia, and Melbourne U.)
Abstract
Beam loss monitoring systems based on optical fibres (oBLM), have been under consideration for future colliders for several years. To distinguish losses between consecutive quadrupoles, a position resolution of less than 1 m is required. A resolution of better than 0.5 m has been achieved in machines with single, nanosecond long pulses. For longer beam pulses, such as the ~150 ns CLIC pulse, the longitudinal length of signals in the fibre is close to the duration of the beam pulse itself which makes loss reconstruction very challenging. In this contribution, results from experiments into the position resolution of an oBLM based on long beam pulses are presented. These measurements have been performed at the CLIC Test Facility (CTF3) and the Australian Synchrotron Light Source (ASLS). In CTF3, controlled beam losses were created at different quadrupoles in the 28 m long decelerating Test Beam Line (TBL) LINAC by altering the current supplied or misaligning them. In ASLS the flexibility of the facility allowed the location of beam losses generated by single bunches to be studied as well as losses for longer bunch trains up to 600 ns in duration.
Organisation
CI
,
STFC
Keywords
Funding Information
Related Research Object(s):
12256245
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Paper In Conference Proceedings
In 4th International Beam Instrumentation Conference (IBIC2015), Melbourne, Australia, 13-17 September, 2015, (2015).
http://accelconf.…5/papers/webla03.pdf
2015
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