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Large -area beam tracking detectors for fast extracted beams

Large -area beam tracking detectors for fast extracted beams. B.Sitar, R.Janik, M.Pikna, P.Strmen, I Szarka Comenius University Bratislava DIRACsecondary-Beams meeting GSI Darmstadt 14-15 April 2005. Detectors for NUSTAR facility. Ion tracking Beam profile measurements

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Large -area beam tracking detectors for fast extracted beams

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  1. Large-area beam tracking detectors for fast extracted beams B.Sitar, R.Janik, M.Pikna, P.Strmen, I Szarka Comenius University Bratislava DIRACsecondary-Beams meeting GSI Darmstadt 14-15 April 2005 B.Sitar

  2. Detectors for NUSTAR facility • Ion tracking • Beam profile measurements • Beam position measurements • Different approach for beam intensity regions:1 – 105 Individual ion tracking105 – 109 Beam profile mesurements in low pressure gas109 – 1012 Beam profile measuremnts in vacuum B.Sitar

  3. Detector choice • Our preference: gas detectors • Reasons: • Experience • Wide variety of gas detectors • Possibility to cover large sensitive areas • Reasonable prices B.Sitar

  4. Individual ion tracking Experience with TPC trackers at FRS: • Several types of TPC were buit and used for FRS • TPC - reliable detector used in many experiments during 10 years • Low amount of material in the beam area B.Sitar

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  6. Scheme of TPC with delay line readout B.Sitar

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  11. Beam profile measurements Multiwire Proportional(Ionization) Chamber • Low pressure 0 – 1 bar • Working with low gas gain up to 1 • Low amount of material in the beam area • Fast flash type electronics B.Sitar

  12. Scheme of the beam MWPC B.Sitar

  13. Beam MWPC with electronics B.Sitar

  14. TPCs on the holders ready for beam pipe B.Sitar

  15. Measured time structure of the beam B.Sitar

  16. Beam profile monitors for very high intensities • Fluxes over 109 ions / bunch • Beam profile monitors working in vacuum • Secondary electron emission • Light emission • Residual gas ionization • Charge induction B.Sitar

  17. Bunch Shape Monitor with wire target B.Sitar

  18. Bunch Shape Monitor B.Sitar

  19. Ionization beam Profile Monitor Scheme of IPM for beam horizontal profile measurements B.Sitar

  20. Residual Gas profile Monitor B.Sitar

  21. C-probe Beam Position Monitor B.Sitar

  22. Bratislava Detector Lab – winding machine B.Sitar

  23. Bratislava Detector Lab – assembly system B.Sitar

  24. Bratislava Detector Lab – test bench B.Sitar

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