CUORE 实验中缓解铜表面污染技术的验证
核实验
2013-04-05 v4 高能物理 - 实验
仪器与探测器
摘要
在本文中，我们描述了 CUORE 实验面临的背景挑战，这些挑战源于铜等惰性探测器材料的表面污染，并介绍了为缓解这些背景而探索的三种技术。利用专为验证和比较这些技术而构建的测试装置所获得的数据，我们证明对于 238U 和 232Th，铜表面污染水平可达到优于 10E-07 - 10E-08 Bq/cm2。如果这些水平能在最终的 CUORE 装置中复现，则根据所采用的缓解技术，感兴趣区域内背景计数的预计 90% C.L. 上限为 0.02-0.03 counts/keV/kg/y。
引用
@article{arxiv.1210.1107,
title = {Validation of techniques to mitigate copper surface contamination in CUORE},
author = {F. Alessandria and R. Ardito and D. R. Artusa and F. T. Avignone and O. Azzolini and M. Balata and T. I. Banks and G. Bari and J. Beeman and F. Bellini and A. Bersani and M. Biassoni and T. Bloxham and C. Brofferio and C. Bucci and X. Z. Cai and L. Canonica and S. Capelli and L. Carbone and L. Cardani and M. Carrettoni and N. Casali and N. Chott and M. Clemenza and C. Cosmelli and O. Cremonesi and R. J. Creswick and I. Dafinei and A. Dally and V. Datskov and A. De Biasi and M. M. Deninno and S. Di Domizio and M. L. di Vacri and L. Ejzak and R. Faccini and D. Q. Fang and H. A. Farach and E. Ferri and F. Ferroni and E. Fiorini and M. A. Franceschi and S. J. Freedman and B. K. Fujikawa and A. Giachero and L. Gironi and A. Giuliani and J. Goett and A. Goodsell and P. Gorla and C. Gotti and E. Guardincerri and T. D. Gutierrez and E. E. Haller and K. Han and K. M. Heeger and H. Z. Huang and R. Kadel and K. Kazkaz and G. Keppel and L. Kogler and Yu. G. Kolomensky and D. Lenz and Y. L. Li and C. Ligi and X. Liu and Y. G. Ma and C. Maiano and M. Maino and M. Martinez and R. H. Maruyama and Y. Mei and N. Moggi and S. Morganti and T. Napolitano and S. Newman and S. Nisi and C. Nones and E. B. Norman and A. Nucciotti and F. Orio and D. Orlandi and J. L. Ouellet and M. Pallavicini and V. Palmieri and L. Pattavina and M. Pavan and M. Pedretti and G. Pessina and S. Pirro and E. Previtali and V. Rampazzo and R. Reil and F. Rimondi and C. Rosenfeld and C. Rusconi and S. Sangiorgio and N. D. Scielzo and M. Sisti and A. R. Smith and L. Sparks and F. Stivanello and L. Taffarello and M. Tenconi and W. D. Tian and C. Tomei and S. Trentalange and G. Ventura and M. Vignati and B. S. Wang and H. W. Wang and C. A. Whitten and T. Wise and A. Woodcraft and L. Zanotti and C. Zarra and B. X. Zhu and S. Zucchelli},
journal= {arXiv preprint arXiv:1210.1107},
year = {2013}
}
备注
10 pages, 6 figures, 6 tables