Development of the Beam Conditions Monitoring Prime system for beam abort and luminosity monitoring in ATLAS based on a segmented polycrystalline CVD diamond system and dedicated front-end ASIC

The High Luminosity upgrade of Large Hadron Collider (HL-LHC) will increase the LHC luminosity and with it the density of particles on the detector by an order of magnitude. For protecting the inner silicon detectors of the ATLAS experiment and for monitoring the delivered luminosity, a radiation ha...

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Bibliographic Details
Published in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1062; p. 169204
Main Authors:	Mali, Miha, Abusareya, Mo’men, Asensi, Ignacio, Formenti, Fabio, Gorišek, Andrej, Hiti, Bojan, Kagan, Harris, Frais-Kölbl, Helmut, Maček, Boštjan, Mikuž, Marko, Oh, Alexander, Onufrena, Aleksandra, Porter, Alice Laura, Selhofer, Bernhard, Siral, Ismet, Smith, Dale Shane, Solans, Carlos, Swoboda, Anna, Veale, Kirsty
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01-05-2024
Subjects:	ATLAS detector Beam conditions monitor ITk pCVD diamond detectors Test beam ITk Beam conditions monitor pCVD diamond detectors ATLAS detector Test beam
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Summary:	The High Luminosity upgrade of Large Hadron Collider (HL-LHC) will increase the LHC luminosity and with it the density of particles on the detector by an order of magnitude. For protecting the inner silicon detectors of the ATLAS experiment and for monitoring the delivered luminosity, a radiation hard beam monitor was developed based on polycrystalline Chemical Vapor Deposition (pCVD) diamond detectors and a new dedicated rad-hard front-end ASIC. Due to the large range of particle flux through the detector, flexibility is very important. To satisfy the requirements imposed by the HL-LHC, our solution is based on segmenting diamond sensors into devices of varying size and reading them out with new multichannel readout ASICs divided into two independent parts — each of them serving one of the tasks of the system. This paper describes the system design including detectors, electronics, mechanics and services and presents preliminary results from the most recent detectors fabricated, using our prototype ASIC with data from beam tests at CERN.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2024.169204