Simultaneous high resolution meausurement of phonons and ionization created by particle interactions in a 60 g germanium crystal at 25 mK

T. Shutt; N. Wang; B. Ellman; Y. Giraud-Héraud; C. Stubbs; P. D. Barnes, Jr; A. Cummings; A. Da Silva; J. Emes; E. E. Haller; A. E. Lange; J. Rich; R. R. Ross; B. Sadoulet; G. Smith; W. Stockwell; S. White; B. A. Young; D. Yvon

doi:10.1103/PhysRevLett.69.3531

Simultaneous high resolution meausurement of phonons and ionization created by particle interactions in a 60 g germanium crystal at 25 mK

T. Shutt, N. Wang, B. Ellman, Y. Giraud-Héraud, C. Stubbs, P. D. Barnes, Jr., A. Cummings, A. Da Silva, J. Emes, E. E. Haller, A. E. Lange, J. Rich, R. R. Ross, B. Sadoulet, G. Smith, W. Stockwell, S. White, B. A. Young, and D. Yvon

Phys. Rev. Lett. 69, 3531 – Published 14 December 1992

Abstract

We demonstrate simultaneous high energy resolution (rms≊800 eV) measurements of ionization and phonons created by particle interactions in a semiconductor crystal of macroscopic size (60 g germanium) at 25 mK. We present first studies of charge collection at biases below 1 V/cm, and find that, contrary to commonly held opinion, the full recoil energy of particle interactions is recovered as phonons when charge trapping is negligible. We also report an unanticipated correlation between charge collection and phonon energy at very low bias, and discuss this effect in terms of charge trapping.

Received 24 September 1992

DOI:https://doi.org/10.1103/PhysRevLett.69.3531

Authors & Affiliations

T. Shutt, N. Wang, B. Ellman, Y. Giraud-Héraud, C. Stubbs, P. D. Barnes, Jr., A. Cummings, A. Da Silva, J. Emes, E. E. Haller, A. E. Lange, J. Rich, R. R. Ross, B. Sadoulet, G. Smith, W. Stockwell, S. White, B. A. Young, and D. Yvon

Center for Particle Astrophysics, University of California at Berkeley, Berkeley, California 94720
Department of Physics, University of California at Berkeley, Berkeley, California 94720
Department of Material Science Mineral Engineering, University of California at Berkeley, Berkeley, California 94720
Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720
Department of Physics, University of California at Santa Barbara, Santa Barbara, California 93106
Department d’Astrophysique, de Physique des Particules, de Physique Nucleaire et de l’Instrumentation Associée-Service Physique des Particles Centre I’Etudes Nucléaires de Saclay, 91191 Gif-sur-Yvette, CEDEX, France
Department of Physics, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia V6T 1Z1, Canada
Laboratoire de Physique Corpusculaire, College de France, 75231 Paris, France