Kudryavtsev, V.A. orcid.org/0000-0002-7018-5827, Lehner, M.J., Peak, C.D. et al. (9 more authors) (1999) Characteristics of alpha, gamma and nuclear recoil pulses from NaI(Tl) at 10-100 keV relevant to dark matter searches. Physics Letters B, 452 (1-2). pp. 167-172. ISSN 0370-2693
Abstract
Measurements of the shapes of scintillation pulses produced by nuclear recoils, alpha particles and photons in NaI Tl Ž . crystals at visible energies of 10–100 keV have been performed in order to investigate possible sources of background in NaI Tl dark matter experiments and, in particular, the possible origin of the anomalous fast time constant events observed in Ž . the UK Dark Matter Collaboration experiments at Boulby mine P.F. Smith et al., Phys. Rep. 307 1998 275 . Pulses w Ž . x initiated by X-rays via photoelectric effect close to the surface of the crystal were found not to differ from those produced Ž . by high-energy photons via Compton electrons inside the crystal within experimental errors. However, pulses induced by Ž . alpha particles degraded from an external MeV source were found to be Ž . ;10% faster than those of nuclear recoils, but insufficiently fast to account for the anomalous events.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 1999 Published by Elsevier B.V. This is an author produced version of a paper subsequently published in Physics Letters B. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | Scintillation detectors; Dark matter; WIMP; Radioactive sources; Pulse-shape discrimination |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 05 Oct 2017 15:53 |
Last Modified: | 27 Mar 2018 05:00 |
Published Version: | https://doi.org/10.1016/S0370-2693(99)00270-1 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/S0370-2693(99)00270-1 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:122082 |