Large -area beam tracking detectors for fast extracted beams
description
Transcript of Large -area beam tracking detectors for fast extracted beams
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1155..0404.200.2005 GSI Darmstadt5 GSI Darmstadt B.SitarB.Sitar
LargeLarge-area beam tracking detectors -area beam tracking detectors for fast extracted beamsfor fast extracted beams
B.Sitar, R.Janik, M.Pikna, P.Strmen, I SzarkaB.Sitar, R.Janik, M.Pikna, P.Strmen, I Szarka
Comenius University BratislavaComenius University Bratislava
DIRACsecondary-Beams meeting DIRACsecondary-Beams meeting GSI Darmstadt 14-15 April 2005GSI Darmstadt 14-15 April 2005
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GSI Darmstadt 15.04.2005 GSI Darmstadt 15.04.2005 B.SitarB.Sitar22//2244
Detectors for NUSTAR facilityDetectors for NUSTAR facility
• Ion trackingIon tracking
• Beam profile measurementsBeam profile measurements
• Beam position measurementsBeam position measurements
Different approach for beam intensity regions:Different approach for beam intensity regions:
1 – 101 – 1055 Individual ion tracking Individual ion tracking101055 – 10 – 1099 Beam profile mesurements in low pressure gas Beam profile mesurements in low pressure gas101099 – 10 – 101212 Beam profile measuremnts in vacuum Beam profile measuremnts in vacuum
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Our preference: gas detectorsOur preference: gas detectors
Reasons:Reasons:
• Experience Experience
• Wide Wide varietyvariety of gas detectors of gas detectors
• Possibility to cover large sensitPossibility to cover large sensitiive areasve areas
• Reasonable pricesReasonable prices
Detector choiceDetector choice
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Individual ion trackingIndividual ion tracking
Experience with TPC trackers at FRS:Experience with TPC trackers at FRS:
Several types of TPC were buit and used for FRSSeveral types of TPC were buit and used for FRS
TPC - reliable detector used in many experiments during 10 yearsTPC - reliable detector used in many experiments during 10 years
Low amount of material in the beam areaLow amount of material in the beam area
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GSI Darmstadt 15.04.2005 GSI Darmstadt 15.04.2005 B.SitarB.Sitar55//2244
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Scheme of TPC with delay line readoutScheme of TPC with delay line readout
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Beam profile measurementsBeam profile measurements
Multiwire Multiwire ProportionalProportional (Ionization) (Ionization) Chamber Chamber
Low pressure 0 – 1 barLow pressure 0 – 1 bar
Working with low gas gain up to 1Working with low gas gain up to 1
Low amount of material in the beam areaLow amount of material in the beam area
Fast flash type electronicsFast flash type electronics
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Scheme of the beam MWPCScheme of the beam MWPC
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Beam MWPC with electronicsBeam MWPC with electronics
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TPCs on the holders ready for beam pipeTPCs on the holders ready for beam pipe
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Measured time structure of the beamMeasured time structure of the beam
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Beam profile monitors for very high intensitiesBeam profile monitors for very high intensities
Fluxes over 10Fluxes over 1099 ions / bunch ions / bunch
Beam profile monitors working in vacuumBeam profile monitors working in vacuum
Secondary electron emissionSecondary electron emission
Light emissionLight emission
Residual gas ionizationResidual gas ionization
Charge inductionCharge induction
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Bunch Shape Monitor with wire target Bunch Shape Monitor with wire target
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Bunch Shape MonitorBunch Shape Monitor
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Ionization beam Profile MonitorIonization beam Profile Monitor
Scheme of IPM for beam horizontal profile measurements
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Residual Gas profile MonitorResidual Gas profile Monitor
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C-probe Beam Position MonitorC-probe Beam Position Monitor
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Bratislava Detector Lab – winding machineBratislava Detector Lab – winding machine
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Bratislava Detector Lab – assembly systemBratislava Detector Lab – assembly system
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Bratislava Detector Lab – test benchBratislava Detector Lab – test bench