IBIC2021 - List of Authors (Zamantzas, C.)

Paper	Title	Page
TUPP21	The HL-LHC Beam Gas Vertex Monitor - Performance and Design Optimisation Using Simulations	249
	B. Kolbinger, H. Guerin, O.R. Jones, R. Kieffer, T. Lefèvre, A. Salzburger, J.W. Storey, R. Veness, C. Zamantzas CERN, Meyrin, Switzerland S.M. Gibson, H. Guerin Royal Holloway, University of London, Surrey, United Kingdom
	The Beam Gas Vertex (BGV) instrument is a novel non-invasive beam profile monitor and part of the High Luminosity Upgrade of the Large Hadron Collider (LHC) at CERN. Its aim is to continuously measure emittance and transverse beam profile throughout the whole LHC cycle, which has not yet been achieved by any other single device in the machine. The BGV consists of a gas target and a forward tracking detector to reconstruct tracks and vertices resulting from beam-gas interactions. The beam profile is inferred from the spatial distribution of the vertices, making it essential to achieve a very good vertex resolution. Extensive simulation studies are being performed to provide a basis for the design of the future BGV. The goal of the study is to ascertain the requirements for the tracking detector and the gas target within the boundary conditions provided by the feasibility of integrating it into the LHC, budget and timescale. This contribution will focus on the simulations of the forward tracking detector. Based on cutting-edge track and vertex reconstruction methods, key parameter scans and their influence on the vertex resolution will be discussed.
	Poster TUPP21 [1.105 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP21
About •	paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 02 October 2021
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TUPP32	The Beam Loss Monitoring System after LHC Injectors Upgrade at CERN	285
	M. Saccani, E. Calvo Giraldo, W. Viganò, C. Zamantzas CERN, Meyrin, Switzerland
	The LHC Injector Upgrade project aims to increase the brightness of the beams available and improve the efficiency of the whole accelerator chain. The Beam Loss Monitoring (BLM) system is a key element of CERN’s accelerator instrumentation for beam optimisation and machine protection by producing continuous and reliable beam loss measurements while ensuring safe operation. The new BLM system for the LHC Injectors aimed to provide faster measures with a higher dynamic range, to install more detectors along the beamlines and to give the operator more flexible use. A review will be given on the versatility provided by the system to cover requirements from various accelerators and their transfer lines, focusing on the measurements and the operational scenarios.
	Poster TUPP32 [2.256 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP32
About •	paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 17 October 2021
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TUPP33	Beam Loss Signal Calibration for the LHC Diamond Detectors During Run 2	290
	S. Morales Vigo, E. Calvo Giraldo, E. Effinger, B. Salvachua, C. Zamantzas CERN, Meyrin, Switzerland C.P. Welsch, J. Wolfenden The University of Liverpool, Liverpool, United Kingdom
	Chemical Vapour Deposition (CVD) diamond detectors can be used as fast beam loss monitors in particle accelerators. In the Large Hadron Collider (LHC) at CERN, they are installed in the betatron collimation region, a high-radiation environment. In addition to their high-radiation tolerance, their main advantage is a time resolution of 1 ns which makes possible not only turn-by-turn, but also bunch-by-bunch loss measurements. An analysis of the LHC diamond beam loss monitor signals recorded during the last months of Run 2 (September 2018-November 2018) is presented with the aim of obtaining a signal-to-beam loss calibration.
	Poster TUPP33 [3.728 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP33
About •	paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 20 October 2021
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TUPP34	Methodology, Characterisation and Results from the Prototype Beam Loss Monitoring ASIC at CERN	294
	F. Martina, L. Giangrande, J. Kaplon, P.V. Leitao, C. Zamantzas CERN, Meyrin, Switzerland J.W. Bradley, F. Martina, C.P. Welsch The University of Liverpool, Liverpool, United Kingdom F. Martina, C.P. Welsch Cockcroft Institute, Warrington, Cheshire, United Kingdom
	The characterisation of novel beam loss monitoring front-end converters, based on radiation-hardened application-specific integrated circuits (ASIC), is undergoing at CERN. An effective performance analysis of the newly developed ASICs plays a key role in their candidacy for the future installation in the HL-LHC complex. This work introduces the latest test-bed architecture, used to characterise such a device, together with the variety of audits involved. Special focus is given on the verification methodology of data acquisition and measurements, in order to allow a detailed study of the conversion capabilities, the evaluation of the device resolution and the linearity response. Finally, the first results of post-irradiation measurements are also reported.
	Poster TUPP34 [4.981 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP34
About •	paper received ※ 12 September 2021 paper accepted ※ 27 September 2021 issue date ※ 01 October 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

The HL-LHC Beam Gas Vertex Monitor - Performance and Design Optimisation Using Simulations

249

B. Kolbinger, H. Guerin, O.R. Jones, R. Kieffer, T. Lefèvre, A. Salzburger, J.W. Storey, R. Veness, C. Zamantzas
CERN, Meyrin, Switzerland
S.M. Gibson, H. Guerin
Royal Holloway, University of London, Surrey, United Kingdom

The Beam Gas Vertex (BGV) instrument is a novel non-invasive beam profile monitor and part of the High Luminosity Upgrade of the Large Hadron Collider (LHC) at CERN. Its aim is to continuously measure emittance and transverse beam profile throughout the whole LHC cycle, which has not yet been achieved by any other single device in the machine. The BGV consists of a gas target and a forward tracking detector to reconstruct tracks and vertices resulting from beam-gas interactions. The beam profile is inferred from the spatial distribution of the vertices, making it essential to achieve a very good vertex resolution. Extensive simulation studies are being performed to provide a basis for the design of the future BGV. The goal of the study is to ascertain the requirements for the tracking detector and the gas target within the boundary conditions provided by the feasibility of integrating it into the LHC, budget and timescale. This contribution will focus on the simulations of the forward tracking detector. Based on cutting-edge track and vertex reconstruction methods, key parameter scans and their influence on the vertex resolution will be discussed.

Poster TUPP21 [1.105 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP21

About •

paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 02 October 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPP32

The Beam Loss Monitoring System after LHC Injectors Upgrade at CERN

285

M. Saccani, E. Calvo Giraldo, W. Viganò, C. Zamantzas
CERN, Meyrin, Switzerland

The LHC Injector Upgrade project aims to increase the brightness of the beams available and improve the efficiency of the whole accelerator chain. The Beam Loss Monitoring (BLM) system is a key element of CERN’s accelerator instrumentation for beam optimisation and machine protection by producing continuous and reliable beam loss measurements while ensuring safe operation. The new BLM system for the LHC Injectors aimed to provide faster measures with a higher dynamic range, to install more detectors along the beamlines and to give the operator more flexible use. A review will be given on the versatility provided by the system to cover requirements from various accelerators and their transfer lines, focusing on the measurements and the operational scenarios.

Poster TUPP32 [2.256 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP32

About •

paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 17 October 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPP33

Beam Loss Signal Calibration for the LHC Diamond Detectors During Run 2

290

S. Morales Vigo, E. Calvo Giraldo, E. Effinger, B. Salvachua, C. Zamantzas
CERN, Meyrin, Switzerland
C.P. Welsch, J. Wolfenden
The University of Liverpool, Liverpool, United Kingdom

Chemical Vapour Deposition (CVD) diamond detectors can be used as fast beam loss monitors in particle accelerators. In the Large Hadron Collider (LHC) at CERN, they are installed in the betatron collimation region, a high-radiation environment. In addition to their high-radiation tolerance, their main advantage is a time resolution of 1 ns which makes possible not only turn-by-turn, but also bunch-by-bunch loss measurements. An analysis of the LHC diamond beam loss monitor signals recorded during the last months of Run 2 (September 2018-November 2018) is presented with the aim of obtaining a signal-to-beam loss calibration.

Poster TUPP33 [3.728 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP33

About •

paper received ※ 08 September 2021 paper accepted ※ 16 September 2021 issue date ※ 20 October 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPP34

Methodology, Characterisation and Results from the Prototype Beam Loss Monitoring ASIC at CERN

294

F. Martina, L. Giangrande, J. Kaplon, P.V. Leitao, C. Zamantzas
CERN, Meyrin, Switzerland
J.W. Bradley, F. Martina, C.P. Welsch
The University of Liverpool, Liverpool, United Kingdom
F. Martina, C.P. Welsch
Cockcroft Institute, Warrington, Cheshire, United Kingdom

The characterisation of novel beam loss monitoring front-end converters, based on radiation-hardened application-specific integrated circuits (ASIC), is undergoing at CERN. An effective performance analysis of the newly developed ASICs plays a key role in their candidacy for the future installation in the HL-LHC complex. This work introduces the latest test-bed architecture, used to characterise such a device, together with the variety of audits involved. Special focus is given on the verification methodology of data acquisition and measurements, in order to allow a detailed study of the conversion capabilities, the evaluation of the device resolution and the linearity response. Finally, the first results of post-irradiation measurements are also reported.

Poster TUPP34 [4.981 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP34

About •

paper received ※ 12 September 2021 paper accepted ※ 27 September 2021 issue date ※ 01 October 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)