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In-situ low-energy background measurement in D2O+salt phase of the Sudbury Neutrino Observatory, using the isotropy of ß-? Cerenkov light

journal contribution
posted on 2023-06-07, 19:39 authored by Simon PeetersSimon Peeters
In the second phase of the Sudbury Neutrino Observatory (SNO), salt was added to the D2O, increasing the sensitivity to measurement of the 8B solar neutrino flux through the neutral current reaction, in which the deuteron is split into its proton and its neutron. This reaction is detected by looking for the Cerenkov light which is produced when the neutron is captured on the salt or on the D2O. In this article, I will describe the in-situ method used for the determination of the neutron background from radioactivity within the D2O, as presented in [SNO Collaboration, ArXiv:nucl-ex/0309004, submitted to Phys. Rev. Lett.] (see also R.G.H. Robertson's contribution to this conference). This background is, when combined with ex-situ methods, found to be 0.72 +0.24 -0.23 neutrons per day.

History

Publication status

  • Published

Journal

Nuclear Physics B - Proceedings Supplements

ISSN

0550-3213

Publisher

Elsevier

Volume

138

Page range

533-535

Pages

3.0

Event name

Nuclear Physics B - Proceedings Supplements

Event type

conference

Department affiliated with

  • Physics and Astronomy Publications

Notes

In the Proceedings of the Eighth International Workshop on Topics in Astroparticle and Undeground Physics.

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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