Observation of radon mitigation in MicroBooNE by a liquid argon filtration system
Observation of radon mitigation in MicroBooNE by a liquid argon filtration system
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DOI：
10.1088/1748-0221/17/11/p11022
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发表时间：
2022-03
影响因子：
1.3
通讯作者：
M. C. P. Abratenko;J. Anthony;L. Arellano;J. Asaadi;A. Ashkenazi;S. Balasubramanian;B. Baller;C. Barnes;G. Barr;J. Barrow;V. Basque;L. Bathe-Peters;O. Rodrigues;S. Berkman;A. Bhanderi;A. Bhat;M. Bhattacharya;M. Bishai;A. Blake;T. Bolton;J. Book;L. Camilleri;D. Caratelli;I. C. Terrazas;F. Cavanna;G. Cerati;Y. Chen;D. Cianci;J. Conrad;M. Convery;L. Cooper-Troendle;J. I. Crespo-Anadón;M. Tutto;S. Dennis;P. Detje;A. Devitt;R. Diurba;R. Dorrill;K. Duffy;S. Dytman;B. Eberly;A. Ereditato;J. Evans;R. Fine;G. A. F. Aguirre;R. Fitzpatrick;B. Fleming;N. Foppiani;D. Franco;A. Furmanski;D. Garcia-Gamez;S. Gardiner;G. Ge;S. Gollapinni;O. Goodwin;E. Gramellini;P. Green;H. Greenlee;W. Gu;R. Guenette;P. Guzowski;L. Hagaman;O. Hen;C. Hilgenberg;G. Horton-Smith;A. Hourlier;R. Itay;C. James;X. Ji;L. Jiang;J. Jo;C. Joe;R. Johnson;Y. Jwa;D. Kalra;N. Kamp;N. Kaneshige;G. Karagiorgi;W. Ketchum;M. Kirby;T. Kobilarcik;I. Kreslo;I. Lepetic;J.-Y. Li;K. Li;Y. Li;K. Lin;B. Littlejohn;W. Louis;X. Luo;K. Manivannan;C. Mariani;D. Marsden;J. Marshall;D. A. Caicedo;K. Mason;A. Mastbaum;N. McConkey;V. Meddage;T. Mettler;K. Miller;J. Mills;K. Mistry;T. Mohayai;A. Mogan;M. Mooney;A. Moor;C. Moore;L. Lepin;J. Mousseau;S. Babu;D. Naples;A. Navrer-Agasson;N. Nayak;M. Nebot-Guinot;R. Neely;D. Newmark;J. Nowak;M. Nunes;O. Palamara;V. Paolone;A. Papadopoulou;Vicky Papavassiliou;H. Parkinson;S. Pate;N. Patel;A. Paudel;Z. Pavlovic;E. Piasetzky;I. Ponce-Pinto;S. Prince;X. Qian;J. Raaf;V. Radeka;A. Rafique;M. Reggiani-Guzzo;L. Ren;L. Rice;L. Rochester;J. Rondon;M. Rosenberg;M. Ross-Lonergan;C. Rohr;G. Scanavini;D. Schmitz;A. Schukraft;W. Seligman;M. Shaevitz;R. Sharankova;J. Shi;J. Sinclair;A. Smith;E. Snider;M. Soderberg;S. Soldner-Rembold;P. Spentzouris;J. Spitz;M. Stancari;J. John;T. Strauss;K. Sutton;S. Sword-Fehlberg;A. Szelc;W. Tang;K. Terao;C.Thorpe;D. Torbunov;D. Totani;M. Toups;Y. Tsai;M. Uchida;T. Usher;B. Viren;M. Weber;H. Wei;A. White;Z. Williams;S. Wolbers;T. Wongjirad;M. Wospakrik;K. Wresilo;N. Wright;W. Wu;E. Yandel;T. Yang;G. Yarbrough;L. Yates;H. Yu;G. Zeller;J. Zennamo;C. Zhang;M. Zuckerbrot
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文献类型：
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作者：
M. C. P. Abratenko;J. Anthony;L. Arellano;J. Asaadi;A. Ashkenazi;S. Balasubramanian;B. Baller;C. Barnes;G. Barr;J. Barrow;V. Basque;L. Bathe-Peters;O. Rodrigues;S. Berkman;A. Bhanderi;A. Bhat;M. Bhattacharya;M. Bishai;A. Blake;T. Bolton;J. Book;L. Camilleri;D. Caratelli;I. C. Terrazas;F. Cavanna;G. Cerati;Y. Chen;D. Cianci;J. Conrad;M. Convery;L. Cooper-Troendle;J. I. Crespo-Anadón;M. Tutto;S. Dennis;P. Detje;A. Devitt;R. Diurba;R. Dorrill;K. Duffy;S. Dytman;B. Eberly;A. Ereditato;J. Evans;R. Fine;G. A. F. Aguirre;R. Fitzpatrick;B. Fleming;N. Foppiani;D. Franco;A. Furmanski;D. Garcia-Gamez;S. Gardiner;G. Ge;S. Gollapinni;O. Goodwin;E. Gramellini;P. Green;H. Greenlee;W. Gu;R. Guenette;P. Guzowski;L. Hagaman;O. Hen;C. Hilgenberg;G. Horton-Smith;A. Hourlier;R. Itay;C. James;X. Ji;L. Jiang;J. Jo;C. Joe;R. Johnson;Y. Jwa;D. Kalra;N. Kamp;N. Kaneshige;G. Karagiorgi;W. Ketchum;M. Kirby;T. Kobilarcik;I. Kreslo;I. Lepetic;J.-Y. Li;K. Li;Y. Li;K. Lin;B. Littlejohn;W. Louis;X. Luo;K. Manivannan;C. Mariani;D. Marsden;J. Marshall;D. A. Caicedo;K. Mason;A. Mastbaum;N. McConkey;V. Meddage;T. Mettler;K. Miller;J. Mills;K. Mistry;T. Mohayai;A. Mogan;M. Mooney;A. Moor;C. Moore;L. Lepin;J. Mousseau;S. Babu;D. Naples;A. Navrer-Agasson;N. Nayak;M. Nebot-Guinot;R. Neely;D. Newmark;J. Nowak;M. Nunes;O. Palamara;V. Paolone;A. Papadopoulou;Vicky Papavassiliou;H. Parkinson;S. Pate;N. Patel;A. Paudel;Z. Pavlovic;E. Piasetzky;I. Ponce-Pinto;S. Prince;X. Qian;J. Raaf;V. Radeka;A. Rafique;M. Reggiani-Guzzo;L. Ren;L. Rice;L. Rochester;J. Rondon;M. Rosenberg;M. Ross-Lonergan;C. Rohr;G. Scanavini;D. Schmitz;A. Schukraft;W. Seligman;M. Shaevitz;R. Sharankova;J. Shi;J. Sinclair;A. Smith;E. Snider;M. Soderberg;S. Soldner-Rembold;P. Spentzouris;J. Spitz;M. Stancari;J. John;T. Strauss;K. Sutton;S. Sword-Fehlberg;A. Szelc;W. Tang;K. Terao;C.Thorpe;D. Torbunov;D. Totani;M. Toups;Y. Tsai;M. Uchida;T. Usher;B. Viren;M. Weber;H. Wei;A. White;Z. Williams;S. Wolbers;T. Wongjirad;M. Wospakrik;K. Wresilo;N. Wright;W. Wu;E. Yandel;T. Yang;G. Yarbrough;L. Yates;H. Yu;G. Zeller;J. Zennamo;C. Zhang;M. Zuckerbrot
MicroBooNE液氩时间投影室（LArTPC）通过使用过滤系统来保持高水平的液氩纯度，该过滤系统可去除连续循环液体、再冷凝蒸发和外部供应氩气中的负电性污染物。我们使用MicroBooNE LArTPC重建兆电子伏级的放射性衰变。利用该技术，我们测量了液氩过滤系统的除氡效率。这是通过放置一个500 kBq的222 Rn源上游的过滤器和搜索的LArTPC中的放射性衰变的数量随时间的增加进行研究。在两个模型的背景下，氡缓解通过液氩过滤系统，减缓机制和捕获机制，MicroBooNE的数据支持氡减少因子分别大于97%或99.999%。此外，对过滤器的放射性调查发现，铜基过滤材料是去除222 Rn的主要介质。这是第一次观察到氡缓解液氩与大型铜基过滤器，并可能提供一个氡缓解解决方案，为未来的大型LArTPC。
The MicroBooNE liquid argon time projection chamber (LArTPC) maintains a high level of liquid argon purity through the use of a filtration system that removes electronegative contaminants in continuously-circulated liquid, recondensed boil off, and externally supplied argon gas. We use the MicroBooNE LArTPC to reconstruct MeV-scale radiological decays. Using this technique we measure the liquid argon filtration system's efficacy at removing radon. This is studied by placing a 500 kBq 222Rn source upstream of the filters and searching for a time-dependent increase in the number of radiological decays in the LArTPC. In the context of two models for radon mitigation via a liquid argon filtration system, a slowing mechanism and a trapping mechanism, MicroBooNE data supports a radon reduction factor of greater than 97% or 99.999%, respectively. Furthermore, a radiological survey of the filters found that the copper-based filter material was the primary medium that removed the 222Rn. This is the first observation of radon mitigation in liquid argon with a large-scale copper-based filter and could offer a radon mitigation solution for future large LArTPCs.