|
1.
|
Measuring the Beam Profile by Counting Ionization Electrons
/ Sandberg, Hampus (Manchester U. ; CERN) ; Bertsche, William (Manchester U.) ; Bodart, Dominique (CERN) ; Dehning, Bernd (CERN) ; Gibson, Stephen (Royal Holloway, U. of London) ; Levasseur, Swann (CERN) ; Satou, Kenichirou (J-PARC ; KEK, Tsukuba ; JAEA, Ibaraki) ; Schneider, Gerhard (CERN) ; Storey, James (CERN) ; Veness, Raymond (CERN)
The principle of non-destructive beam profile measurement with rest gas ionization electrons has remained largely unchanged since the technique was first proposed in the late 1960's. Ionization electrons (or ions) are transported by an electrostatic field onto an imaging detector, where the spatial distribution of detected electrons is a direct measure of the transverse beam profile. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-IBIC2019-TUBO04
Fulltext: PDF;
In : 8th International Beam Instrumentation Conference (IBIC 2019), Malmo, Sweden, 8 - 12 Sep 2019, pp.TUBO04
|
|
|
2.
|
Measuring beam size with the LHC Beam Gas Vertex detector
/ Würkner, Benedikt (CERN) ; Alexopoulos, Andreas (CERN) ; Barschel, Colin (CERN) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Bravin, Enrico (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Ferro-Luzzi, Massimiliano (CERN) et al.
The Beam Gas Vertex detector (BGV) is an innovative beam profile monitor being developed as part of the High Luminosity LHC (HL-LHC) project at CERN. The goal is to continually measure the transverse beam size by reconstructing tracks originating from beam-gas interactions using high precision tracking detectors. [...]
CERN-ACC-2019-205.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPGW084
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPGW084
|
|
|
3.
|
A Family of Gas Ionization Chambers and SEM for Beam Loss Monitoring of LHC and Other Accelerators
/ Grishin, Viatcheslav (ESS, Lund) ; Dehning, Bernd (CERN) ; Effinger, Ewald (CERN) ; Emery, Jonathan (CERN) ; Holzer, Eva Barbara (CERN) ; Koshelev, Andrey (Serpukhov, IHEP) ; Larionov, Anatoly (Serpukhov, IHEP) ; Medvedeva, Tatiana (CERN) ; Seleznev, Vladimir (Serpukhov, IHEP) ; Sleptsov, Mikhail (Serpukhov, IHEP) et al.
A serious problem for high current accelerators is the high density of the beam, which is able to destroy the equipment and to make a quench of super conductive magnets. Loss of even a small fraction of this intense beam equipment. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-RuPAC2018-TUZMH03
Fulltext: PDF;
In : 26th Russian Particle Accelerator Conference, Protvino, Russia, 1 - 5 Oct 2018, pp.TUZMH03
|
|
|
4.
|
Ionization Chambers as Beam Loss Monitors for ESS Linear Accelerator
/ Grishin, Viatcheslav (ESS, Lund) ; Dehning, Bernd (CERN) ; Koshelev, Andrey (Serpukhov, IHEP) ; Larionov, Anatoli (Serpukhov, IHEP) ; Seleznev, Vladimir (Serpukhov, IHEP) ; Sleptsov, Mikhail (Serpukhov, IHEP)
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 [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IBIC2017-WEPWC03
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WEPWC03
|
|
|
5.
|
First Results From the Operation of a Rest Gas Ionisation Profile Monitor Based on a Hybrid Pixel Detector
/ Storey, James (CERN) ; Bertsche, William (Manchester U.) ; Bodart, Dominique (CERN) ; Dehning, Bernd (CERN) ; Gibson, Stephen (Royal Holloway, U. of London) ; Levasseur, Swann (Royal Holloway, U. of London) ; Sandberg, Hampus (Manchester U.) ; Sapinski, Mariusz (Darmstadt, GSI) ; Satou, Kenichirou (KEK, Tsukuba) ; Schneider, Gerhard (CERN) et al.
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. [...]
2018 - 5 p.
- Published in : 10.18429/JACoW-IBIC2017-WE2AB5
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WE2AB5
|
|
|
6.
|
Performance Assessment of Pre-Series Fast Beam Wire Scanner Prototypes for the Upgrade of the CERN LHC Injector Complex
/ Sirvent, Jose (CERN) ; Andersson, Patrik (CERN) ; Andreazza, William (CERN) ; Dehning, Bernd (CERN) ; Emery, Jonathan (CERN) ; Garcia, Lionel (CERN) ; Gudkov, Dmitry (CERN) ; Roncarolo, Federico (CERN) ; Tassan-Viol, Jean (CERN) ; Trad, Georges (CERN) et al.
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. [...]
2018 - 4 p.
- Published in : 10.18429/JACoW-IBIC2017-WEPCC03
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WEPCC03
|
|
|
7.
|
The LHC Beam Gas Vertex Detector - a Non-Invasive Profile Monitor for High Energy Machines
/ Vlachos, Sotiris (CERN) ; Alexopoulos, Andreas (CERN) ; Barchel, Colin (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Bravin, Enrico (CERN) ; Bregliozzi, Giuseppe (CERN) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Ferro-Luzzi, Massimiliano (CERN) et al.
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. [...]
2018 - 7 p.
- Published in : 10.18429/JACoW-IBIC2017-WE3AB1
Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.WE3AB1
|
|
|
8.
|
Performance study of little ionization chambers at the Large Hadron Collider
/ Kalliokoski, Matti (CERN) ; Dehning, Bernd (CERN) ; Effinger, Ewald (CERN) ; Grishin, Viatcheslav (CERN) ; Herranz Alvarez, Juan (CERN ; Barcelona, Polytechnic U. ; Proactive R&D;, Barcelona) ; Hjorth, Kristian (CERN ; Norwegian U. Sci. Tech.) ; Holzer, Eva Barbara (CERN) ; Nebot del Busto, Eduardo (CERN) ; Zamantzas, Christos (CERN)
The main detector type for beam loss monitoring of the LHC is a parallel plate Ionization Chamber (IC). In the locations where the beam losses could saturate the read-out electronics of the ICs, two other monitor types, Little Ionization Chambers (LIC) and Secondary Emission Monitors, have been installed to extend the dynamic range of the ICs. [...]
2017 - 5 p.
- Published in : 10.1109/NSSMIC.2016.8069744
In : IEEE Nuclear Science Symposium and Medical Imaging Conference, Strasbourg, France, 29 Oct - 6 Nov 2016, pp.8069744
|
|
|
9.
|
|
|
10.
|
The 20m/s CERN Fast Vacuum Wire Scanner Conceptual Design and Implementation
/ Herranz, Juan (Proactive Research and Development, Barcelona) ; Andreazza, William (CERN) ; Barjau, Ana (Barcelona, Polytechnic U.) ; Chritin, Nicolas (CERN) ; Dehning, Bernd (CERN) ; Emery, Jonathan (CERN) ; Gudkov, Dmitry (CERN) ; Magagnin, Paolo (CERN) ; Samuelsson, Sebastian (CERN) ; Sirvent Blasco, Jose L (CERN) et al.
In the next years the luminosity of the LHC will be significantly increased. Therefore a much higher accuracy of beam profile measurement than actually achievable by the current wire scanner is required. [...]
2017 - 3 p.
- Published in : 10.18429/JACoW-MEDSI2016-MOPE13
Fulltext: PDF;
In : 9th Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation, Barcelona, Spain, 11 - 16 Sep 2016, pp.MOPE13
|
|