Calibration strategy of the PROSPECT-II detector with external and intrinsic sources
Abstract
This paper presents an energy calibration scheme for an upgraded reactor antineutrino detector for the Precision Reactor Oscillation and Spectrum Experiment (PROSPECT). The PROSPECT collaboration is preparing an upgraded detector, PROSPECT-II (P-II), to advance capabilities for the investigation of fundamental neutrino physics, fission processes and associated reactor neutrino flux, and nuclear security applications. P-II will expand the statistical power of the original PROSPECT (P-I) dataset by at least an order of magnitude. The new design builds upon previous P-I design and focuses on improving the detector robustness and long-term stability to enable multi-year operation at one or more sites. The new design optimizes the fiducial volume by elimination of dead space previously occupied by internal calibration channels, which in turn necessitates the external deployment. In this paper, we describe a calibration strategy for P-II. The expected performance of externally deployed calibration sources is evaluated using P-I data and a well-benchmarked simulation package by varying detector segmentation configurations in the analysis. The proposed external calibration scheme delivers a compatible energy scale model and achieves comparable performance with the inclusion of an additional AmBe neutron source, in comparison to the previous internal arrangement. Most importantly, the estimated uncertainty contribution from the external energy scale calibration model meets the precision requirements of the P-II experiment.
Keywords
Cite
@article{arxiv.2211.09582,
title = {Calibration strategy of the PROSPECT-II detector with external and intrinsic sources},
author = {M. Andriamirado and A. B. Balantekin and C. D. Bass and D. E. Bergeron and E. P. Bernard and N. S. Bowden and C. D. Bryan and R. Carr and T. Classen and A. J. Conant and A. Delgado and M. V. Diwan and M. J. Dolinski and A. Erickson and B. T. Foust and J. K. Gaison and A. Galindo-Uribarri and C. E. Gilbert and S. Gokhale and C. Grant and S. Hans and A. B. Hansell and K. M. Heeger and B. Heffron and D. E. Jaffe and S. Jayakumar and X. Ji and D. C. Jones and J. Koblanski and P. Kunkle and C. E. Lane and T. J. Langford and J. LaRosa and B. R. Littlejohn and X. Lu and J. Maricic and M. P. Mendenhall and A. M. Meyer and R. Milincic and P. E. Mueller and H. P. Mumm and J. Napolitano and R. Neilson and J. A. Nikkel and S. Nour and J. L. Palomino and D. A. Pushin and X. Qian and C. Roca and R. Rosero and M. Searles and P. T. Surukuchi and F. Sutanto and M. A. Tyra and D. Venegas-Vargas and P. B. Weatherly and J. Wilhelmi and A. Woolverton and M. Yeh and C. Zhang and X. Zhang},
journal= {arXiv preprint arXiv:2211.09582},
year = {2023}
}
Comments
19 pages, 10 figures