IBIC2017 - List of Authors (Dehning, B.)

Paper	Title	Page
WE2AB5	First Results From the Operation of a Rest Gas Ionisation Profile Monitor Based on a Hybrid Pixel Detector	318
	J.W. Storey, D. Bodart, B. Dehning, G. Schneider, R. Veness CERN, Geneva, Switzerland W. Bertsche, H. Sandberg UMAN, Manchester, United Kingdom S.M. Gibson, S. Levasseur Royal Holloway, University of London, Surrey, United Kingdom M. Sapinski GSI, Darmstadt, Germany K. Satou J-PARC, KEK & JAEA, Ibaraki-ken, Japan
	A novel rest gas ionisation profile monitor which aims to provide a continuous non-destructive bunch-by-bunch measurement of the transverse emittance is currently under development for the CERN Proton Synchrotron (CPS). Uniquely for this type of instrument the imaging detector that measures the position of the ionisation electrons consists of an array of pixelated silicon sensors which are read-out using Timepix3 readout chips. The pixel detector is directly sensitive to single ionisation electrons and therefore removes the need for electron amplification with Multi-Channel Plates which typically suffer from aging phenomena. The use of a pixel detector also offers the promise to significantly improve the time and spatial resolution of the position measurement compared to existing instruments. An ambitious program has been undertaken to develop a pixel detector that is compatible with operation directly inside the beam pipe vacuum together with the necessary radiation hard control and data acquisition electronics. A prototype version of the instrument was recently installed in the CPS and first results from the operation of this novel instrument will be presented.
	Slides WE2AB5 [38.592 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WE2AB5
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WE3AB1	The LHC Beam Gas Vertex Detector - a Non-Invasive Profile Monitor for High Energy Machines	323
	S. Vlachos, A. Alexopoulos, C. Barschel, E. Bravin, G. Bregliozzi, N. Chritin, B. Dehning, M. Ferro-Luzzi, M. Giovannozzi, R. Jacobsson, L.K. Jensen, R.J. Jones, V. Kain, R. Matev, M.N. Rihl, V. Salustino Guimaraes, R. Veness, B. Würkner CERN, Geneva, Switzerland A. Bay, F. Blanc, S. Gianì, O. Girard, G.J. Haefeli, P. Hopchev, A. Kuonen, T. Nakada, O. Schneider, M. Tobin, Q.D. Veyrat, Z. Xu EPFL, Lausanne, Switzerland R. Greim, W. Karpinski, S. Schael, A. Schultz von Dratzig, G. Schwering, M. Wlochal RWTH, Aachen, Germany
	The Beam Gas Vertex (BGV) monitor is being developed as part of the High Luminosity LHC project with the aim of providing measurements with less than 5% error on the beam size with an integration time of 5 minutes. It will be the only instrument capable of non-invasive beam size measurement throughout the LHC acceleration cycle with high intensity physics beams. A prototype BGV monitor has been installed in the LHC since 2016. Particles emerging from beam-gas interactions are recorded by 2 planes of scintillating fibre detectors. Based on vertex reconstruction of the detected tracks, this monitor allows non-invasive measurement of beam profiles with bunch-by-bunch resolution. A dedicated computer farm performs track reconstruction and event analysis on-line so that real-time beam profile measurements can be provided. Data taken in 2016 and 2017 will be presented that demonstrate the power of the method.
	Slides WE3AB1 [2.276 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WE3AB1
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WEPCC03	Performance Assessment of Pre-Series Fast Beam Wire Scanner Prototypes for the Upgrade of the CERN LHC Injector Complex	338
	J.L. Sirvent, P. Andersson, W. Andreazza, B. Dehning, J. Emery, L. Garcia, D. Gudkov, F. Roncarolo, J. Tassan-Viol, G. Trad, R. Veness CERN, Geneva, Switzerland
	A new generation of beam wire scanner (BWS), for transversal beam profile monitoring, is under development on the framework of the LHC Injector Upgrade project at CERN. Two pre-series prototypes have been built and installed in the Super Proton Synchrotron and Proton Synchrotron Booster, to assess the performance of the upgraded BWS concept. This contribution shows the outcome of the measurement campaigns carried out on the first BWS prototypes, both in the laboratory and with proton beams. An evaluation of a high dynamic range acquisition system for the measurement of the secondary showers produced by the beam-wire interaction is also presented.
	Poster WEPCC03 [2.080 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCC03
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WEPWC03	Ionization Chambers as Beam Loss Monitors for ESS Linear Accelerator	454
	V. Grishin ESS, Lund, Sweden B. Dehning CERN, Geneva, Switzerland A.V. Koshelev, A. Larionov, V.S. Seleznev, M. Sleptsov IHEP, Moscow Region, Russia
	The European Spallation Source (ESS) to be under construction in Lund, Sweden, will provide a highest average intensity beam from a 5 MW superconducting proton linear accelerator to produce spallation neutrons. A serious problem for high current accelerators is the high density of the beam, which is able to destroy the equipment, to make a quench of super conductive magnets. Loss of even a small fraction of this intense beam would result in high radiation and destruction of the equipment. The Beam Loss Monitor (BLM) system must be sensitive to different level of losses in different accelerator locations. The main ESS beam loss detector type is ionization chamber (icBLM). The detector is originally designed for CERN LHC and 4250 monitors were produced in 2006-2008, now widely used in almost all accelerators at CERN, in IHEP (Protvino, Russia). In 2014-2017 a new production of 830 icBLM was performed to replenish spares for LHC and to make series for ESS, GSI. The requirements, design, testing and layout for ESS accelerator are presented
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPWC03
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

First Results From the Operation of a Rest Gas Ionisation Profile Monitor Based on a Hybrid Pixel Detector

318

J.W. Storey, D. Bodart, B. Dehning, G. Schneider, R. Veness
CERN, Geneva, Switzerland
W. Bertsche, H. Sandberg
UMAN, Manchester, United Kingdom
S.M. Gibson, S. Levasseur
Royal Holloway, University of London, Surrey, United Kingdom
M. Sapinski
GSI, Darmstadt, Germany
K. Satou
J-PARC, KEK & JAEA, Ibaraki-ken, Japan

A novel rest gas ionisation profile monitor which aims to provide a continuous non-destructive bunch-by-bunch measurement of the transverse emittance is currently under development for the CERN Proton Synchrotron (CPS). Uniquely for this type of instrument the imaging detector that measures the position of the ionisation electrons consists of an array of pixelated silicon sensors which are read-out using Timepix3 readout chips. The pixel detector is directly sensitive to single ionisation electrons and therefore removes the need for electron amplification with Multi-Channel Plates which typically suffer from aging phenomena. The use of a pixel detector also offers the promise to significantly improve the time and spatial resolution of the position measurement compared to existing instruments. An ambitious program has been undertaken to develop a pixel detector that is compatible with operation directly inside the beam pipe vacuum together with the necessary radiation hard control and data acquisition electronics. A prototype version of the instrument was recently installed in the CPS and first results from the operation of this novel instrument will be presented.

Slides WE2AB5 [38.592 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WE2AB5

Export •

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

WE3AB1

The LHC Beam Gas Vertex Detector - a Non-Invasive Profile Monitor for High Energy Machines

323

S. Vlachos, A. Alexopoulos, C. Barschel, E. Bravin, G. Bregliozzi, N. Chritin, B. Dehning, M. Ferro-Luzzi, M. Giovannozzi, R. Jacobsson, L.K. Jensen, R.J. Jones, V. Kain, R. Matev, M.N. Rihl, V. Salustino Guimaraes, R. Veness, B. Würkner
CERN, Geneva, Switzerland
A. Bay, F. Blanc, S. Gianì, O. Girard, G.J. Haefeli, P. Hopchev, A. Kuonen, T. Nakada, O. Schneider, M. Tobin, Q.D. Veyrat, Z. Xu
EPFL, Lausanne, Switzerland
R. Greim, W. Karpinski, S. Schael, A. Schultz von Dratzig, G. Schwering, M. Wlochal
RWTH, Aachen, Germany

The Beam Gas Vertex (BGV) monitor is being developed as part of the High Luminosity LHC project with the aim of providing measurements with less than 5% error on the beam size with an integration time of 5 minutes. It will be the only instrument capable of non-invasive beam size measurement throughout the LHC acceleration cycle with high intensity physics beams. A prototype BGV monitor has been installed in the LHC since 2016. Particles emerging from beam-gas interactions are recorded by 2 planes of scintillating fibre detectors. Based on vertex reconstruction of the detected tracks, this monitor allows non-invasive measurement of beam profiles with bunch-by-bunch resolution. A dedicated computer farm performs track reconstruction and event analysis on-line so that real-time beam profile measurements can be provided. Data taken in 2016 and 2017 will be presented that demonstrate the power of the method.

Slides WE3AB1 [2.276 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WE3AB1

Export •

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

WEPCC03

Performance Assessment of Pre-Series Fast Beam Wire Scanner Prototypes for the Upgrade of the CERN LHC Injector Complex

338

J.L. Sirvent, P. Andersson, W. Andreazza, B. Dehning, J. Emery, L. Garcia, D. Gudkov, F. Roncarolo, J. Tassan-Viol, G. Trad, R. Veness
CERN, Geneva, Switzerland

A new generation of beam wire scanner (BWS), for transversal beam profile monitoring, is under development on the framework of the LHC Injector Upgrade project at CERN. Two pre-series prototypes have been built and installed in the Super Proton Synchrotron and Proton Synchrotron Booster, to assess the performance of the upgraded BWS concept. This contribution shows the outcome of the measurement campaigns carried out on the first BWS prototypes, both in the laboratory and with proton beams. An evaluation of a high dynamic range acquisition system for the measurement of the secondary showers produced by the beam-wire interaction is also presented.

Poster WEPCC03 [2.080 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCC03

Export •

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

WEPWC03

Ionization Chambers as Beam Loss Monitors for ESS Linear Accelerator

454

V. Grishin
ESS, Lund, Sweden
B. Dehning
CERN, Geneva, Switzerland
A.V. Koshelev, A. Larionov, V.S. Seleznev, M. Sleptsov
IHEP, Moscow Region, Russia

The European Spallation Source (ESS) to be under construction in Lund, Sweden, will provide a highest average intensity beam from a 5 MW superconducting proton linear accelerator to produce spallation neutrons. A serious problem for high current accelerators is the high density of the beam, which is able to destroy the equipment, to make a quench of super conductive magnets. Loss of even a small fraction of this intense beam would result in high radiation and destruction of the equipment. The Beam Loss Monitor (BLM) system must be sensitive to different level of losses in different accelerator locations. The main ESS beam loss detector type is ionization chamber (icBLM). The detector is originally designed for CERN LHC and 4250 monitors were produced in 2006-2008, now widely used in almost all accelerators at CERN, in IHEP (Protvino, Russia). In 2014-2017 a new production of 830 icBLM was performed to replenish spares for LHC and to make series for ESS, GSI. The requirements, design, testing and layout for ESS accelerator are presented

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPWC03

Export •

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