NDLI: Development of a timing detector for the TOTEM experiment at the LHC

Content Provider	Springer Nature Link
Author	Minafra, Nicola
Copyright Year	2017
Abstract	The upgrade program of the TOTEM experiment will include the installation of timing detectors inside vertical Roman Pots to allow the reconstruction of the longitudinal vertex position in the presence of event pile-up in high- $\beta^{\ast}$ dedicated runs. The small available space inside the Roman Pot, optimized for high-intensity LHC runs, and the required time precision led to the study of a solution using single crystal CVD diamonds. The sensors are read out using fast low-noise front-end electronics developed by the TOTEM Collaboration, achieving a signal-to-noise ratio larger than 20 for MIPs. A prototype was designed, manufactured and tested during a test beam campaign, proving a time precision below 100ps and an efficiency above 99%. The geometry of the detector has been designed to guarantee uniform occupancy in the expected running conditions keeping, at the same time, the number of channels below 12. The read-out electronics was developed during an extensive campaign of beam tests dedicated first to the characterization of existing solution and then to the optimization of the electronics designed within the Collaboration. The detectors were designed to be read out using the SAMPIC chip, a fast sampler designed specifically for picosecond timing measurements with high-rate capabilities; later, a modified version was realized using the HPTDC to achieve the higher trigger rates required for the CT-PPS experiment. The first set of prototypes was successfully installed and tested in the LHC in November 2015; moreover the detectors modified for CT-PPS are successfully part of the global CMS data taking since October 2016.
Starting Page	1
Ending Page	20
Page Count	20
File Format	PDF
Journal	The European Physical Journal Plus
Volume Number	132
Issue Number	9
e-ISSN	21905444
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-09-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Applied and Technical Physics Theoretical, Mathematical and Computational Physics Complex Systems Condensed Matter Physics Atomic, Molecular, Optical and Plasma Physics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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