|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
27 April 2024 |
|
| | | | |
|
Article forum
| |
|
|
Demonstration of Surface Electron Rejection with Interleaved Germanium Detectors for Dark Matter Search | | R. Agnese
; A.J. Anderson
; D. Balakishiyeva
; R. Basu Thakur
; D.A. Bauer
; A. Borgland
; D. Brandt
; P.L. Brink
; R. Bunker
; B. Cabrera
; D.O. Caldwell
; D.G. Cerdeno
; H. Chagani
; M. Cherry
; J. Cooley
; B. Cornell
; C.H. Crewdson
; P. Cushman
; M. Daal
; P.C.F. Di Stefano
; E. Do Couto E Silva
; T. Doughty
; L. Esteban
; S. Fallows
; E. Figueroa-Feliciano
; J. Fox
; M. Fritts
; G.L. Godfrey
; S.R. Golwala
; J. Hall
; H.R. Harris
; J. Hasi
; S.A. Hertel
; B.A. Hines
; T. Hofer
; D. Holmgren
; L. Hsu
; M.E. Huber
; A. Jastram
; O. Kamaev
; B. Kara
; M.H. Kelsey
; S.A. Kenany
; A. Kennedy
; C.J. Kenney
; M. Kiveni
; K. Koch
; B. Loer
; E. Lopez Asamar
; R. Mahapatra
; V. Mandic
; C. Martinez
; K.A. McCarthy
; N. Mirabolfathi
; R.A. Moffatt
; D.C. Moore
; P. Nadeau
; R.H. Nelson
; L. Novak
; K. Page
; R. Partridge
; M. Pepin
; A. Phipps
; K. Prasad
; M. Pyle
; H. Qiu
; R. Radpour
; W. Rau
; P. Redl
; A. Reisetter
; R.W. Resch
; Y. Ricci
; T. Saab
; B. Sadoulet
; J. Sander
; R. Schmitt
; K. Schneck
; R.W. Schnee
; S. Scorza
; D. Seitz
; B. Serfass
; B. Shank
; D. Speller
; A. Tomada
; A.N. Villano
; B. Welliver
; D.H. Wright
; S. Yellin
; J.J. Yen
; B.A. Young
; J. Zhang
; | | Date: |
10 May 2013 | | Abstract: | SuperCDMS, a direct search for WIMPs, is currently operating a 9-kg array of
cryogenic germanium (Ge) detectors in the Soudan Underground Laboratory. These
detectors, known as iZIPs, use ionization and phonon sensors placed
symmetrically on both sides of a Ge crystal to measure both charge and athermal
phonons from each particle interaction. The information from each event
provides excellent discrimination between electron recoils and nuclear recoils,
as well as discrimination between events on the detector surface and those in
the interior. To demonstrate the surface electron rejection capabilities, two
$^{210}$Pb sources were installed facing detectors, producing $sim$130 beta
decays/hr. In $sim$800 live hours, no events leaked into the WIMP signal
region in the recoil energy range 8--115 keVr, providing an upper limit to the
surface event leakage fraction of $1.7 imes 10^{-5}$ at 90% C.L. This
rejection factor demonstrates that surface electrons would produce $< 0.6$
event background in the 0.3 ton-year exposure for the proposed 200-kg iZIP
array in SuperCDMS SNOLAB. | | Source: | arXiv, 1305.2405 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No message found in this article forum.
You have a question or message about this article?
Ask the community and write a message in the forum.
If you want to rate this article, please use the review section..
To add a message in the forum, you need to login or register first. (free): registration page
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER