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Energy loss due to defect formation from 206Pb recoils in SuperCDMS germanium detectors

Agnese, R.; Aralis, T.; Aramaki, T.; Arnquist, I.J.; Azadbakht, E.; Baker, W.; Banik, S.; Barker, D.; Bauer, D.A.; Binder, T.; Bowles, M.A.; Brink, P.L.; Bunker, R.; Cabrera, B.; Calkins, R.; Cartaro, C.; Cerdenõ, D.G.; Chang, Y.-Y.; Cooley, J.; Cornell, B.; Cushman, P.; Di Stefano, P.C.F.; Doughty, T.; Fascione, E.; Figueroa-Feliciano, E.; Fink, C.W.; Fritts, M.; Gerbier, G.; Germond, R.; Ghaith, M.; Golwala, S.R.; Harris, H.R.; Hong, Z.; Hoppe, E.W.; Hsu, L.; Huber, M.E.; Iyer, V.; Jardin, D.; Jena, C.; Kelsey, M.H.; Kennedy, A.; Kubik, A.; Kurinsky, N.A.; Lawrence, R.E.; Loer, B.; Lopez Asamar, E.; Lukens, P.; MacDonell, D.; Mahapatra, R.; Mandic, V.; Mast, N.; Miller, E.H.; Mirabolfathi, N.; Mohanty, B.; Morales Mendoza, J.D.; Nelson, J.; Orrell, J.L.; Oser, S.M.; Page, W.A.; Partridge, R.; Pepin, M.; Ponce, F.; Poudel, S.; Pyle, M.; Qiu, H.; Rau, W.; Reisetter, A.; Ren, T.; Reynolds, T.; Roberts, A.; Robinson, A.E.; Rogers, H.E.; Saab, T.; Sadoulet, B.; Sander, J.; Scarff, A.; Sch...

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Authors

R. Agnese

T. Aralis

T. Aramaki

I.J. Arnquist

E. Azadbakht

W. Baker

S. Banik

D. Barker

D.A. Bauer

T. Binder

M.A. Bowles

P.L. Brink

R. Bunker

B. Cabrera

R. Calkins

C. Cartaro

D.G. Cerdenõ

Y.-Y. Chang

J. Cooley

B. Cornell

P. Cushman

P.C.F. Di Stefano

T. Doughty

E. Fascione

E. Figueroa-Feliciano

C.W. Fink

M. Fritts

G. Gerbier

R. Germond

M. Ghaith

S.R. Golwala

H.R. Harris

Z. Hong

E.W. Hoppe

L. Hsu

M.E. Huber

V. Iyer

D. Jardin

C. Jena

M.H. Kelsey

A. Kennedy

A. Kubik

N.A. Kurinsky

R.E. Lawrence

B. Loer

E. Lopez Asamar

P. Lukens

D. MacDonell

R. Mahapatra

V. Mandic

N. Mast

E.H. Miller

N. Mirabolfathi

B. Mohanty

J.D. Morales Mendoza

J. Nelson

J.L. Orrell

S.M. Oser

W.A. Page

R. Partridge

M. Pepin

F. Ponce

S. Poudel

M. Pyle

H. Qiu

W. Rau

A. Reisetter

T. Ren

T. Reynolds

A. Roberts

A.E. Robinson

H.E. Rogers

T. Saab

B. Sadoulet

J. Sander

A. Scarff

R.W. Schnee

S. Scorza

K. Senapati

B. Serfass

D. Speller

M. Stein

J. Street

H.A. Tanaka

D. Toback

R. Underwood

A.N. Villano

B. von Krosigk

S.L. Watkins

J.S. Wilson

M.J. Wilson

J. Winchell

D.H. Wright

S. Yellin

B.A. Young

X. Zhang

X. Zhao



Abstract

The Super Cryogenic Dark Matter Search experiment at the Soudan Underground Laboratory studied energy loss associated with defect formation in germanium crystals at mK temperatures using in situ 210Pb sources. We examine the spectrum of 206Pb nuclear recoils near its expected 103 keV endpoint energy and determine an energy loss of (6:08 ± 0:18)%, which we attribute to defect formation. From this result and using TRIM simulations, we extract the first experimentally determined average displacement threshold energy of 19.7+0.6−0.5 eV for germanium. This has implications for the analysis thresholds of future germanium-based dark matter searches.

Citation

Agnese, R., Aralis, T., Aramaki, T., Arnquist, I., Azadbakht, E., Baker, W., …Zhao, X. (2018). Energy loss due to defect formation from 206Pb recoils in SuperCDMS germanium detectors. Applied Physics Letters, 113(9), Article 092101. https://doi.org/10.1063/1.5041457

Journal Article Type Article
Acceptance Date Aug 13, 2018
Online Publication Date Aug 27, 2018
Publication Date Aug 27, 2018
Deposit Date Sep 21, 2018
Publicly Available Date Aug 27, 2019
Journal Applied Physics Letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 113
Issue 9
Article Number 092101
DOI https://doi.org/10.1063/1.5041457
Public URL https://durham-repository.worktribe.com/output/1348167

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Copyright Statement
© 201X American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Agnese, R., Aralis, T., Aramaki, T., Arnquist, I. J., Azadbakht, E., Baker, W., Banik, S., Barker, D., Bauer, D. A., Binder, T., Bowles, M. A., Brink, P. L., Bunker, R., Cabrera, B., Calkins, R., Cartaro, C., Cerdenõ, D. G., Chang, Y.-Y., Cooley, J., Cornell, B., Cushman, P., Di Stefano, P. C. F., Doughty, T., Fascione, E., Figueroa-Feliciano, E., Fink, C. W., Fritts, M., Gerbier, G., Germond, R., Ghaith, M., Golwala, S. R., Harris, H. R., Hong, Z., Hoppe, E. W., Hsu, L., Huber, M. E., Iyer, V., Jardin, D., Jena, C., Kelsey, M. H., Kennedy, A., Kubik, A., Kurinsky, N. A., Lawrence, R. E., Loer, B., Lopez Asamar, E., Lukens, P., MacDonell, D., Mahapatra, R., Mandic, V., Mast, N., Miller, E. H., Mirabolfathi, N., Mohanty, B., Morales Mendoza, J. D., Nelson, J., Orrell, J. L., Oser, S. M., Page, W. A., Partridge, R., Pepin, M., Ponce, F., Poudel, S., Pyle, M., Qiu, H., Rau, W., Reisetter, A., Ren, T., Reynolds, T., Roberts, A., Robinson, A. E., Rogers, H. E., Saab, T., Sadoulet, B., Sander, J., Scarff, A., Schnee, R. W., Scorza, S., Senapati, K., Serfass, B., Speller, D., Stein, M., Street, J., Tanaka, H. A., Toback, D., Underwood, R., Villano, A. N., von Krosigk, B., Watkins, S. L., Wilson, J. S., Wilson, M. J., Winchell, J., Wright, D. H., Yellin, S., Young, B. A., Zhang, X. & Zhao, X. (2018). Energy loss due to defect formation from 206Pb recoils in SuperCDMS germanium detectors. Applied Physics Letters 113(9): 092101 and may be found at https://doi.org/10.1063/1.5041457






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