Characteristics of Signals Originating Near the Lithium-Diffused N+ Contact of High Purity Germanium P-Type Point Contact Detectors

The MAJORANA Collaboration: E. Aguayo , M. Amman , F. T. Avignone III , A. S. Barabash , P. J. Barton , J. R. Beene , F. E. Bertrand , M. Boswell

show 77 more authors

V. Brudanin M. Busch Y-D. Chan C. D. Christofferson J. I. Collar D. C. Combs R. J. Cooper J. A. Detwiler P. J. Doe Yu. Efremenko V. Egorov H. Ejiri S. R. Elliott J. Esterline J. E. Fast N. Fields P. Finnerty F. M. Fraenkle A. Galindo-Uribarri V. M. Gehman G. K. Giovanetti M. P. Green V. E. Guiseppe K. Gusey A. L. Hallin R. Hazama R. Henning E. W. Hoppe M. Horton S. Howard M. A. Howe R. A. Johnson K. J. Keeter M. F. Kidd A. Knecht O. Kochetov S. I. Konovalov R. T. Kouzes B. D. LaFerriere J. Leon L. E. Leviner J. C. Loach Q. Looker P. N. Luke S. MacMullin M. G. Marino R. D. Martin J. H. Merriman M. L. Miller L. Mizouni M. Nomachi J. L. Orrell N. R. Overman G. Perumpilly D. G. Phillips II A. W. P. Poon D. C. Radford K. Rielage R. G. H. Robertson M. C. Ronquest A. G. Schubert T. Shima M. Shirchenko K. J. Snavely D. Steele J. Strain V. Timkin W. Tornow R. L. Varner K. Vetter K. Vorren J. F. Wilkerson E. Yakushev H. Yaver A. R. Young C.-H. Yu V. Yumatov

Authors on Pith no claims yet

classification ⚛️ physics.ins-det hep-exnucl-ex

keywords contactenergygermaniumdetectorshighlithium-diffusednearoriginating

0 comments

read the original abstract

A study of signals originating near the lithium-diffused n+ contact of p-type point contact (PPC) high purity germanium detectors (HPGe) is presented. The transition region between the active germanium and the fully dead layer of the n+ contact is examined. Energy depositions in this transition region are shown to result in partial charge collection. This provides a mechanism for events with a well defined energy to contribute to the continuum of the energy spectrum at lower energies. A novel technique to quantify the contribution from this source of background is introduced. Experiments that operate germanium detectors with a very low energy threshold may benefit from the methods presented herein.

This paper has not been read by Pith yet.

Characteristics of Signals Originating Near the Lithium-Diffused N+ Contact of High Purity Germanium P-Type Point Contact Detectors

discussion (0)