TY - GEN
T1 - Performance of detectors using diamond sensors at the LHC and CMS
AU - Hempel, M.
AU - Baer, T.
AU - Dabrowski, A. E.
AU - Lange, W.
AU - Lohmann, W.
AU - Novgorodova, O.
AU - Odell, N. J.
AU - Stickland, D. P.
AU - Griesmayer, E.
N1 - Publisher Copyright:
Copyright © 2013 by JACoW.
PY - 2013/12/1
Y1 - 2013/12/1
N2 - Diamond detectors are used as beam loss and luminosity monitors for CMS and LHC. A time resolution in the nanosecond range allows to detect beam losses and luminosities of single bunches. The radiation hardness and negligible temperature dependence allow the usage of diamond sensors in high radiation fields without cooling. Two different diamond detector types are installed at LHC and CMS. One is based on pcCVD (polycrystalline chemical vapor deposition) diamonds and installed at different locations in the LHC tunnel for beam loss monitoring. Measurements of these detectors are used to perform a bunch-by-bunch beam loss analysis. They allow to disentangle the origin of beam losses. The second type uses scCVD (single crystal chemical vapor deposition) diamonds and is located inside CMS for van-der-Meer scan, beam halo and online luminosity monitoring and around the LHC tunnel for beam loss observation. Results on the performance of these detectors will be presented and examples of the use for analyzing the beam conditions will be given. In order to persist the enhanced requirements of the LHC after the long shutdown, e.g. higher luminosity, an upgrade of the detectors is required. The concept of the new detectors will be presented and first results will be shown.
AB - Diamond detectors are used as beam loss and luminosity monitors for CMS and LHC. A time resolution in the nanosecond range allows to detect beam losses and luminosities of single bunches. The radiation hardness and negligible temperature dependence allow the usage of diamond sensors in high radiation fields without cooling. Two different diamond detector types are installed at LHC and CMS. One is based on pcCVD (polycrystalline chemical vapor deposition) diamonds and installed at different locations in the LHC tunnel for beam loss monitoring. Measurements of these detectors are used to perform a bunch-by-bunch beam loss analysis. They allow to disentangle the origin of beam losses. The second type uses scCVD (single crystal chemical vapor deposition) diamonds and is located inside CMS for van-der-Meer scan, beam halo and online luminosity monitoring and around the LHC tunnel for beam loss observation. Results on the performance of these detectors will be presented and examples of the use for analyzing the beam conditions will be given. In order to persist the enhanced requirements of the LHC after the long shutdown, e.g. higher luminosity, an upgrade of the detectors is required. The concept of the new detectors will be presented and first results will be shown.
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M3 - Conference contribution
AN - SCOPUS:84920538383
T3 - IBIC 2013: Proceedings of the 2nd International Beam Instrumentation Conference
SP - 174
EP - 177
BT - IBIC 2013
PB - Joint Accelerator Conferences Website (JACoW)
T2 - 2nd International Beam Instrumentation Conference, IBIC 2013
Y2 - 16 September 2013 through 19 September 2013
ER -