Signal Shapes from a Closed-ended Coaxial HPGe Detector

  • Published : 1997.12.01

Abstract

Signal shapes from a closed-ended coaxial HPGe detector are investigated by numerical methods. The detector used in this study has a volume of 72 ㎤ with relative efficiency of 15%. The electric field and potential distributions in the detector are determined by solving the Poisson equation at the depletion and operating bias. Hence the time dependent signal shapes induced on the electrode are obtained from the energy balance consideration and tv solving the equation of motion for the charge carriers. For various initial positions of a charge carrier pair, the collection times of induced charge vary in the range of 70 - 404 nsec.

Keywords

References

  1. Gamma and X-ray Spectrometry with Semiconductor Detectors K. Debertin;R.G. Helmer
  2. v.98 J. LIacer, Nucl. Instr.;Meth
  3. IEEE Trans. on Nucl. Sci. v.NS-24 no.1 T.W. Raudorf;T.J. Paulus;M.O. Bedwell;M. Martini
  4. IEEE Trans. on Nucl. Sci. v.NS-29 no.1 T.W. Raudorf;M.O. Bedwell;T.J. Paulus
  5. IEEE Trans. on Nucl. Sci. v.NS-29 no.4 A. Alberigi Quaranta;M. Andretta;G. Zanarini
  6. IEEE Trans. on Nucl. Sci. v.NS-30 no.3 A. Alberigi Quaranta;A. Catellani;M. Cuzzilla;G. Zanarini
  7. Numerical Recipes v.17 W.H. Press;B.P. Flannery;S.A. Teukolsky;W.T. Vetterling
  8. CERN Data Handling Division Report 63-7 J.S. Hornsby
  9. Computer Journal v.4 no.2 B.A. Carre
  10. Germanium Detectors User's Manual Canberra Industries Inc.
  11. Radiation Detection and Measurement, 2nd Ed. G.F. Knoll
  12. IEEE Trans. on Nucl. Sci. v.NS-22 no.1 G. Ottaviani;C. Canali;A. Alberigi Quaranta
  13. Nucl. Instr. and Meth. in Phys. Res. v.A 366 H.I. Bak;Y.D. Bae;M.S. Kim;H.D. Choi
  14. IEEE Trans. on Nucl. Sci. v.NS-31 no.1 A. Alberigi Quaranta;A. Catellani;G. Pizziolo;G. Zanarini