학술논문
Development of a $^{127}$Xe calibration source for nEXO
Document Type
Working Paper
Author
Lenardo, B. G.; Hardy, C. A.; Tsang, R. H. M.; Ondze, J. C. Nzobadila; Piepke, A.; Triambak, S.; Jamil, A.; Adhikari, G.; Kharusi, S. Al; Angelico, E.; Arnquist, I. J.; Belov, V.; Bernard, E. P.; Bhat, A.; Bhatta, T.; Bolotnikov, A.; Breur, P. A.; Brodsky, J. P.; Brown, E.; Brunner, T.; Caden, E.; Cao, G. F.; Cao, L.; Chana, B.; Charlebois, S. A.; Chernyak, D.; Chiu, M.; Cohen, J. R.; Collister, R.; Dalmasson, J.; Daniels, T.; Darroch, L.; DeVoe, R.; di Vacri, M. L.; Ding, Y. Y.; Dolinski, M. J.; Echevers, J.; Eckert, B.; Elbeltagi, M.; Fabris, L.; Fairbank, D.; Fairbank, W.; Farine, J.; Fu, Y. S.; Gallina, G.; Gautam, P.; Giacomini, G.; Gillis, W.; Gingras, C.; Gornea, R.; Gratta, G.; Harouaka, K.; Heffner, M.; Hein, E.; Hößl, J.; House, A.; Iverson, A.; Jiang, X. S.; Karelin, A.; Kaufman, L. J.; Krücken, R.; Kuchenkov, A.; Kumar, K. S.; Larson, A.; Leach, K. G.; Leonard, D. S.; Li, G.; Li, S.; Li, Z.; Licciardi, C.; Lindsay, R.; MacLellan, R.; Masbou, J.; McMichael, K.; Peregrina, M. Medina; Mong, B.; Moore, D. C.; Murray, K.; Nattress, J.; Natzke, C. R.; Ngwadla, X. E.; Ni, K.; Ning, Z.; Orrell, J. L.; Ortega, G. S.; Ostrovskiy, I.; Overman, C. T.; Perna, A.; Franco, T. Pinto; Pocar, A.; Pratte, J. F.; Priel, N.; Raguzin, E.; Ramonnye, G. J.; Rasiwala, H.; Raymond, K.; Richardson, G.; Richman, M.; Ringuette, J.; Rowson, P. C.; Saldanha, R.; Sangiorgio, S.; Shang, X.; Soma, A. K.; Spadoni, F.; Stekhanov, V.; Sun, X. L.; Thibado, S.; Tidball, A.; Todd, J.; Totev, T.; Tyuka, O. A.; Vachon, F.; Veeraraghavan, V.; Viel, S.; Wamba, K.; Wang, Y.; Wang, Q.; Wei, W.; Wen, L. J.; Wichoski, U.; Wilde, S.; Wu, W. H.; Yan, W.; Yang, L.; Zeldovich, O.; Zhao, J.; Ziegler, T.
Source
Subject
Language
Abstract
We study a possible calibration technique for the nEXO experiment using a $^{127}$Xe electron capture source. nEXO is a next-generation search for neutrinoless double beta decay ($0\nu\beta\beta$) that will use a 5-tonne, monolithic liquid xenon time projection chamber (TPC). The xenon, used both as source and detection medium, will be enriched to 90% in $^{136}$Xe. To optimize the event reconstruction and energy resolution, calibrations are needed to map the position- and time-dependent detector response. The 36.3 day half-life of $^{127}$Xe and its small $Q$-value compared to that of $^{136}$Xe $0\nu\beta\beta$ would allow a small activity to be maintained continuously in the detector during normal operations without introducing additional backgrounds, thereby enabling in-situ calibration and monitoring of the detector response. In this work we describe a process for producing the source and preliminary experimental tests. We then use simulations to project the precision with which such a source could calibrate spatial corrections to the light and charge response of the nEXO TPC.
Comment: 24 pages, 16 figures
Comment: 24 pages, 16 figures