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SUMMARY:Development and prototype of a new luminometer for the ATLAS exper
 iment during Run 3 and Run 4 of the LHC
DTSTART;VALUE=DATE-TIME:20230907T100000Z
DTEND;VALUE=DATE-TIME:20230907T102000Z
DTSTAMP;VALUE=DATE-TIME:20260717T045055Z
UID:indico-contribution-2809@indico.tlabs.ac.za
DESCRIPTION:Speakers: Marco Bruschi  (CERN)\nThe Beam Monitor for ATLAS de
 tector (BMA) is an additional luminosity monitor for the ATLAS experiment\
 , targeting the luminosity determination in Run 4 of the Large Hadron Coll
 ider (LHC). The detector is composed of small square pads with about 1mm p
 er side of Low Gain Avalanche Detector (LGAD) silicon sensors\, intended t
 o be placed in the ATLAS detector forward shielding at about 16m from the 
 interaction point.\nThe detector is innovative in several aspects: It does
  not need an external cooling system\, and its readout preamplifiers are m
 eant to be placed at about 25m distance from the sensors\, in an area in w
 hich the radiation levels for the electronics can be neglected. Moreover\,
  the tiny acceptance of the small pads is supposed to minimize systematic 
 effects in the luminosity determination due to pile-up of several interact
 ions in a single or consecutive proton-bunch crossings.\nA two-channels pr
 ototype of the detector has been installed already for Run 3 of the LHC an
 d recorded data in the year 2022. A modified version is set up for data-ta
 king in the current year 2023.\nThe talk will present the technical detail
 s of the project regarding the sensors\, their cooling\, and the readout s
 ystem. A short summary of the performances obtained during the detector op
 eration periods so far will be given in addition.\n\nhttps://indico.tlabs.
 ac.za/event/112/contributions/2809/
LOCATION: Meeting Room 2.61 - 2.63
URL:https://indico.tlabs.ac.za/event/112/contributions/2809/
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