JINST_023P_0621.pdf (1.72 MB)
Optical calibration of the SNO+ detector in the water phase with deployed sources
journal contribution
posted on 2023-06-10, 00:49 authored by Elisabeth FalkElisabeth Falk, Jeff HartnellJeff Hartnell, Charlie Mills, Martti Nirkko, James Edward PageJames Edward Page, Simon PeetersSimon Peeters, Michal RiganMichal Rigan, Sammy ValderSNO+ is a large-scale liquid scintillator experiment with the primary goal of searching for neutrinoless double beta decay, and is located approximately 2 km underground in SNOLAB, Sudbury, Canada. The detector acquired data for two years as a pure water Cherenkov detector, starting in May 2017. During this period, the optical properties of the detector were measured in situ using a deployed light diffusing sphere, with the goal of improving the detector model and the energy response systematic uncertainties. The measured parameters included the water attenuation coefficients, effective attenuation coefficients for the acrylic vessel, and the angular response of the photomultiplier tubes and their surrounding light concentrators, all across different wavelengths. The calibrated detector model was validated using a deployed tagged gamma source, which showed a 0.6% variation in energy scale across the primary target volume.
Funding
STFC Experimental Particle Physics 2018 Consolidated Grant; G2740; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/S000798/1
History
Publication status
- Published
File Version
- Accepted version
Journal
Journal of InstrumentationISSN
1748-0221Publisher
Institute of Physics PublishingExternal DOI
Volume
16Article number
aP10021Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2021-09-01First Open Access (FOA) Date
2022-10-20First Compliant Deposit (FCD) Date
2021-09-01Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC