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Data acquisition system for dark matter detectors


Progress in Ge detector technology has resulted in ultralow backgrounds of less than 0.3 counts keV−1 kg−1 d−1 at energies between 5 and 12 keV, and less than 1.0 counts kev−1 kg−1 d−1 for energies between 3 and 5 keV. Coupled with good energy resolution, 0.4 keV FWHM at 10 keV, this allows searches for DM particles with m ≥8 GeV/c2.

Electromagnetic interference and acoustical pick-up are the main sources of background in the best Ge detectors. These problems are even more important in cryogenic WIMP detectors under development. A PC-based on line pulse shape analysis system is presented which permits rejection of about 95% percent of the EMI/ acoustical background. The hardware uses a low cost, commercially available digital storage oscilloscope. The software consists of about 20,000 lines of code in Pascal and assembly language. We tested this system using a low radioactive background Ge-system on the Earth's surface. For low energy events (27 keV photons) this system permits improvement in the background from 0.1 cpm to 2 cpd.

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  1. 1)

    A.K. Drukier, L. Stodolsky, Phys. Rev.D30, 2296 (1984); M.W. Goodman and E. Witten,Phys. Rev. D31, 3059 (1985); I. Wasserman, Phys. Rev.D32, 2071 (1986); A.K. Drukier, Acta Physica Polonica,B17, 229 (1986).

  2. 2)

    R.L. Brodzinski, H.S. Miley, J.H. Reeves, F.T. Avignone “Further Reduction of Radioactive Backgrounds in Ultrasensitive Germanium Spectrometers”, Nucl. Instr. Meth. 1991.

  3. 3)

    S.P. Ahlen, F.T. Avignone, R.L. Brodzinski, A.K. Drukier, G. Gelmini, D.N. Spergel, Physics Letters B,195, 603–608 (1987).

  4. 4)

    A.K. Drukier, K. Freese, D. Spergel, Phys. Rev.D33, 3495 (1986).

  5. 5)

    See contributions of USC/PNL and UZ/USC/PNL collaboration in Proceedings of TAUP, Toledo, September 1991.

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Sagdeev, I.R., Drukier, A.K. & Welsh, D.J. Data acquisition system for dark matter detectors. J Low Temp Phys 93, 761–766 (1993).

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  • Dark Matter
  • Assembly Language
  • Storage Oscilloscope
  • Matter Detector
  • Digital Storage Oscilloscope