| Title: |
Cosmogenic production of {37}^Ar in the context of the LUX-ZEPLIN experiment |
| Authors: |
Aalbers, J; Akerib, DS; Al Musalhi, AK; Alder, F; Alsum, SK; Amarasinghe, CS; Ames, A; Anderson, TJ; Angelides, N; Araújo, HM; Armstrong, JE; Arthurs, M; Bai, X; Baker, A; Balajthy, J; Balashov, S; Bang, J; Bargemann, JW; Bauer, D; Baxter, A; Beattie, K; Bernard, EP; Bhatti, A; Biekert, A; Biesiadzinski, TP; Birch, HJ; Blockinger, GM; Bodnia, E; Boxer, B; Brew, CAJ; Brás, P; Burdin, S; Busenitz, JK; Buuck, M; Cabrita, R; Carmona-Benitez, MC; Cascella, M; Chan, C; Chawla, A; Chen, H; Chott, NI; Cole, A; Converse, MV; Cottle, A; Cox, G; Creaner, O; Cutter, JE; Dahl, CE; David, A; De Viveiros, L; Dobson, JEY; Druszkiewicz, E; Eriksen, SR; Fan, A; Fayer, S; Fearon, NM; Fiorucci, S; Flaecher, H; Fraser, ED; Fruth, T; Gaitskell, RJ; Genovesi, J; Ghag, C; Gibson, E; Gilchriese, MGD; Gokhale, S; Van Der Grinten, MGD; Gwilliam, CB; Hall, CR; Haselschwardt, SJ; Hertel, SA; Horn, M; Huang, DQ; Hunt, D; Ignarra, CM; Jahangir, O; James, RS; Ji, W; Johnson, J; Kaboth, AC; Kamaha, AC; Kamdin, K; Khaitan, D; Khazov, A; Khurana, I; Kodroff, D; Korley, L; Korolkova, EV; Kraus, H; Kravitz, S; Kreczko, L; Kudryavtsev, VA; Leason, EA; Leonard, DS; Lesko, KT; Levy, C; Lee, J; Lin, J; Lindote, A; Linehan, R |
| Source: |
Physical Review D , 105 (8) , Article 082004. (2022) |
| Publisher Information: |
American Physical Society (APS) |
| Publication Year: |
2022 |
| Collection: |
University College London: UCL Discovery |
| Description: |
We estimate the amount of {37}^Ar produced in natural xenon via cosmic-ray-induced spallation, an inevitable consequence of the transportation and storage of xenon on the Earth’s surface. We then calculate the resulting {37}^Ar concentration in a 10-tonne payload (similar to that of the LUX-ZEPLIN experiment) assuming a representative schedule of xenon purification, storage, and delivery to the underground facility. Using the spallation model by Silberberg and Tsao, the sea-level production rate of {37}^Ar in natural xenon is estimated to be 0.024 atoms/kg/day. Assuming the xenon is successively purified to remove radioactive contaminants in 1-tonne batches at a rate of 1 tonne/month, the average {37}^Ar activity after 10 tons are purified and transported underground is 0.058 - 0.090 μ Bq/kg, depending on the degree of argon removal during above-ground purification. Such cosmogenic {37}^Ar will appear as a noticeable background in the early science data, while decaying with a 35-day half-life. This newly noticed production mechanism of {37}^Ar should be considered when planning for future liquid-xenon-based experiments. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| Relation: |
https://discovery.ucl.ac.uk/id/eprint/10148803/1/PhysRevD.105.082004.pdf; https://discovery.ucl.ac.uk/id/eprint/10148803/ |
| Availability: |
https://discovery.ucl.ac.uk/id/eprint/10148803/1/PhysRevD.105.082004.pdf; https://discovery.ucl.ac.uk/id/eprint/10148803/ |
| Rights: |
open |
| Accession Number: |
edsbas.32AFEA23 |
| Database: |
BASE |