TY - JOUR
T1 - Upgraded fast beam conditions monitor for CMS online luminosity measurement
AU - Leonard, Jessica Lynn
AU - Bellt, Alan
AU - Hempelt, Maria
AU - Henschel, Hans
AU - Karachebant, Olena
AU - Lange, Wolfgang
AU - Lohmannt, Wolfgang
AU - Novgorodova, Olga
AU - Penno, Marek
AU - Walsh, Roberval
AU - Dabrowski, Anne
AU - Guthoff, Moritz
AU - Loos, Rob
AU - Ryjov, Vladimir
AU - Burtowy, Piotr
AU - Lokhovitskiy, Arkady
AU - Odell, Nathaniel
AU - Przyborowski, Dominik
AU - Stickland, David
AU - Zagozdzinska, Agnieszka
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
PY - 2014
Y1 - 2014
N2 - The CMS beam condition monitoring subsystem BCM1F during LHC Run I consisted of 8 individual diamond sensors situated around the beam pipe within the tracker detector volume, for the purpose of fast monitoring of beam background and collision products. Effort is ongoing to develop the use of BCM1F as an online bunch-by-bunch luminosity monitor. BCM1F will be running whenever there is beam in LHC, and its data acquisition is independent from the data acquisition of the CMS detector, hence it delivers luminosity even when CMS is not taking data. To prepare for the expected increase in the LHC luminosity and the change from 50 ns to 25 ns bunch separation, several changes to the system are required, including a higher number of sensors and upgraded electronics. In particular, a new real-time digitizer with large memory was developed and is being integrated into a multi-subsystem framework for luminosity measurement. Current results from Run II preparation will be discussed, including results from the January 2014 test beam.
AB - The CMS beam condition monitoring subsystem BCM1F during LHC Run I consisted of 8 individual diamond sensors situated around the beam pipe within the tracker detector volume, for the purpose of fast monitoring of beam background and collision products. Effort is ongoing to develop the use of BCM1F as an online bunch-by-bunch luminosity monitor. BCM1F will be running whenever there is beam in LHC, and its data acquisition is independent from the data acquisition of the CMS detector, hence it delivers luminosity even when CMS is not taking data. To prepare for the expected increase in the LHC luminosity and the change from 50 ns to 25 ns bunch separation, several changes to the system are required, including a higher number of sensors and upgraded electronics. In particular, a new real-time digitizer with large memory was developed and is being integrated into a multi-subsystem framework for luminosity measurement. Current results from Run II preparation will be discussed, including results from the January 2014 test beam.
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M3 - Conference article
AN - SCOPUS:85011545543
SN - 1824-8039
VL - 0
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 346
T2 - 3rd Technology and Instrumentation in Particle Physics Conference, TIPP 2014
Y2 - 2 June 2014 through 6 June 2014
ER -