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KIAE detectors test & restoration

KIAE detectors test & restoration. Restoration of the detectors Characterization of KIAE detectors Next steps and modernization suggestions. Electronic scheme. 6 μ s. Ortec 672. Master Ortec 919. 6 μ s. Ortec 672. 6 μ s. Ortec 672. 6 μ s. Ortec 672. HV Power Supplies:

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KIAE detectors test & restoration

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  1. KIAE detectorstest & restoration Restoration of the detectors Characterization of KIAE detectors Next steps and modernization suggestions M.Shirchenko, JINR

  2. Electronic scheme 6 μs Ortec 672 Master Ortec 919 6 μs Ortec 672 6 μs Ortec 672 6 μs Ortec 672 HV Power Supplies: Ortec 659 EM 7245 6 μs M.Shirchenko, JINR

  3. Final characteristics M.Shirchenko, JINR

  4. Cumulative spectra 0 -500 keV 1000 -1500 keV 2500 -3000 keV β - β region M.Shirchenko, JINR

  5. Background suppression M.Shirchenko, JINR

  6. 137Cs contamination Detector 1 Detector 5 M.Shirchenko, JINR

  7. Conclusion • All 5 detectors are in operation • No doubling of the peak on D2 • There is some kind of puzzle with background suppression on the D5 Future steps: • Recycling the detector 1 (possibly D3 ) • Long run measurement with 20 cm Pb shield for checking absence of the contamination more efficiently • New DAQ system based in VME logic • Additional electronics is needed • Comparison of the measured data with MaGe simulation M.Shirchenko, JINR

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