Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

E. Aguayo; M. Amman; F. T. Avignone; A. S. Barabash; P. J. Barton; J. R. Beene; F. E. Bertrand; M. Boswell; 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; 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

doi:10.1016/j.nima.2012.11.004

Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

E. Aguayo, M. Amman, F. T. Avignone, A. S. Barabash, P. J. Barton, J. R. Beene, F. E. Bertrand, M. Boswell, 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. EjiriS. 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, 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

Research output: Contribution to journal › Article › peer-review

52 Scopus citations

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.

Original language	English
Pages (from-to)	176-185
Number of pages	10
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	701
DOIs	https://doi.org/10.1016/j.nima.2012.11.004
State	Published - Feb 11 2013

Keywords

Dead layer
Germanium detectors
Transition layer

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10.1016/j.nima.2012.11.004

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Aguayo, E., Amman, M., Avignone, F. T., Barabash, A. S., Barton, P. J., Beene, J. R., Bertrand, F. E., Boswell, M., Brudanin, V., Busch, M., Chan, Y. D., Christofferson, C. D., Collar, J. I., Combs, D. C., Cooper, R. J., Detwiler, J. A., Doe, P. J., Efremenko, Y., Egorov, V., ... Yumatov, V. (2013). Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 701, 176-185. https://doi.org/10.1016/j.nima.2012.11.004

@article{4f1d3f13eb7f494eb60e2850bc1f5c0e,

title = "Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors",

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.",

keywords = "Dead layer, Germanium detectors, Transition layer",

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

note = "Publisher Copyright: {\textcopyright} 2012",

year = "2013",

month = feb,

day = "11",

doi = "10.1016/j.nima.2012.11.004",

language = "English",

volume = "701",

pages = "176--185",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

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Aguayo, E, Amman, M, Avignone, FT, Barabash, AS, Barton, PJ, Beene, JR, Bertrand, FE, Boswell, M, Brudanin, V, Busch, M, Chan, YD, Christofferson, CD, Collar, JI, Combs, DC, Cooper, RJ, Detwiler, JA, Doe, PJ, Efremenko, Y, Egorov, V, Ejiri, H, Elliott, SR, Esterline, J, Fast, JE, Fields, N, Finnerty, P, Fraenkle, FM, Galindo-Uribarri, A, Gehman, VM, Giovanetti, GK, Green, MP, Guiseppe, VE, Gusey, K, Hallin, AL, Hazama, R, Henning, R, Hoppe, EW, Horton, M, Howard, S, Howe, MA, Johnson, RA, Keeter, KJ, Kidd, MF, Knecht, A, Kochetov, O, Konovalov, SI, Kouzes, RT, LaFerriere, BD, Leon, J, Leviner, LE, Loach, JC, Looker, Q, Luke, PN, MacMullin, S, Marino, MG, Martin, RD, Merriman, JH, Miller, ML, Mizouni, L, Nomachi, M, Orrell, JL, Overman, NR, Perumpilly, G, Phillips, DG, Poon, AWP, Radford, DC, Rielage, K, Robertson, RGH, Ronquest, MC, Schubert, AG, Shima, T, Shirchenko, M, Snavely, KJ, Steele, D, Strain, J, Timkin, V, Tornow, W, Varner, RL, Vetter, K, Vorren, K, Wilkerson, JF, Yakushev, E, Yaver, H, Young, AR, Yu, CH & Yumatov, V 2013, 'Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 701, pp. 176-185. https://doi.org/10.1016/j.nima.2012.11.004

Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors. / Aguayo, E.; Amman, M.; Avignone, F. T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 701, 11.02.2013, p. 176-185.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

AU - Aguayo, E.

AU - Amman, M.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Barton, P. J.

AU - Beene, J. R.

AU - Bertrand, F. E.

AU - Boswell, M.

AU - Brudanin, V.

AU - Busch, M.

AU - Chan, Y. D.

AU - Christofferson, C. D.

AU - Collar, J. I.

AU - Combs, D. C.

AU - Cooper, R. J.

AU - Detwiler, J. A.

AU - Doe, P. J.

AU - Efremenko, Yu

AU - Egorov, V.

AU - Ejiri, H.

AU - Elliott, S. R.

AU - Esterline, J.

AU - Fast, J. E.

AU - Fields, N.

AU - Finnerty, P.

AU - Fraenkle, F. M.

AU - Galindo-Uribarri, A.

AU - Gehman, V. M.

AU - Giovanetti, G. K.

AU - Green, M. P.

AU - Guiseppe, V. E.

AU - Gusey, K.

AU - Hallin, A. L.

AU - Hazama, R.

AU - Henning, R.

AU - Hoppe, E. W.

AU - Horton, M.

AU - Howard, S.

AU - Howe, M. A.

AU - Johnson, R. A.

AU - Keeter, K. J.

AU - Kidd, M. F.

AU - Knecht, A.

AU - Kochetov, O.

AU - Konovalov, S. I.

AU - Kouzes, R. T.

AU - LaFerriere, B. D.

AU - Leon, J.

AU - Leviner, L. E.

AU - Loach, J. C.

AU - Looker, Q.

AU - Luke, P. N.

AU - MacMullin, S.

AU - Marino, M. G.

AU - Martin, R. D.

AU - Merriman, J. H.

AU - Miller, M. L.

AU - Mizouni, L.

AU - Nomachi, M.

AU - Orrell, J. L.

AU - Overman, N. R.

AU - Perumpilly, G.

AU - Phillips, D. G.

AU - Poon, A. W.P.

AU - Radford, D. C.

AU - Rielage, K.

AU - Robertson, R. G.H.

AU - Ronquest, M. C.

AU - Schubert, A. G.

AU - Shima, T.

AU - Shirchenko, M.

AU - Snavely, K. J.

AU - Steele, D.

AU - Strain, J.

AU - Timkin, V.

AU - Tornow, W.

AU - Varner, R. L.

AU - Vetter, K.

AU - Vorren, K.

AU - Wilkerson, J. F.

AU - Yakushev, E.

AU - Yaver, H.

AU - Young, A. R.

AU - Yu, C. H.

AU - Yumatov, V.

PY - 2013/2/11

Y1 - 2013/2/11

N2 - 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.

AB - 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.

KW - Dead layer

KW - Germanium detectors

KW - Transition layer

UR - http://www.scopus.com/inward/record.url?scp=84870809361&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2012.11.004

DO - 10.1016/j.nima.2012.11.004

M3 - Article

AN - SCOPUS:84870809361

SN - 0168-9002

VL - 701

SP - 176

EP - 185

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Aguayo E, Amman M, Avignone FT, Barabash AS, Barton PJ, Beene JR et al. Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2013 Feb 11;701:176-185. doi: 10.1016/j.nima.2012.11.004

Characteristics of signals originating near the lithium-diffused N+ contact of high purity germanium p-type point contact detectors

Abstract

Keywords

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