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Measurement of the ion fraction and mobility of 218Po produced in 222Rn decays in liquid argon

Journal Article · · Journal of Instrumentation
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  1. University of Houston
  2. Universidade de Sao Paulo
  3. BATTELLE (PACIFIC NW LAB)
  4. Augustana College
  5. Instituto Nazionale de Fisica Nucleare
  6. Fermi National Accelerator Laboratory
  7. INFN Sezione di Roma
  8. NFN Laboratori Nazionali del Gran Sasso,
  9. INFN
  10. Istituto Nazionale di Fisica Nucleare, Sezione di Genova
  11. Universita degli Studi Roma Tre
  12. Universita DI Cagliari
  13. Università degli Studi di Cagliari
  14. Princeton University
  15. INFN Genova Genova, Italy
  16. Laboratori Nazionali del Gran Sasso
  17. INFN Cagliari
  18. Universita Degli Studi di Genova
  19. Universita Degli Studi di Sassari
  20. Universita degli Studi di Napoli Frederico II
  21. INFN, Sezione di Napoli
  22. Virginia Polytechnic Institute
  23. INFN Napoli
  24. Lomonosov Moscow State University
  25. Universita degli studi di Milano
  26. INFN Laboratori Nazionali del Gran Sasso
  27. The Petersburg Nuclear Physics Institute PNPI
  28. University of Massachusetts
  29. University of Hawaii
  30. Joint Institute for Nuclear Research
  31. Universite de Paris VII (Denis Diderot)
  32. INFN LNGS
  33. Universite de Paris VI (Pierre et Marie Curie)
  34. Temple University
  35. National Research Centre Kurchatov Institute
  36. Moscow State University
  37. Institute of High Energy Physics
  38. Università di Enna Kore
  39. University of California, Davis
  40. Black Hills State University
  41. Belgorod National Research University
  42. INFN Pisa
  43. Universidade Estadual de Campinas
  44. Saint Petersburg Nuclear Physics Institute
  45. INFN Genova
  46. Radiaition Physics Laboratory, Belgorod University
  47. Universita degli Studi di Perugia
  48. INFN, Laboratori Nazionali del Gran Sasso, Assergi, Italy
  49. Universita Degli Studi Di Pisa
  50. INFN- Cagliari
  51. Università degli Studi di Perugia
  52. Gran Sasso Science Institute
  53. National Research Centre, Kurchatov Institute, Russia
  54. Joint Institute for Nuclear Research, Russia
  55. Università degli Studi “Federico II” di Napoli
  56. Laboratori Nazionali del Gran Sasso, Italy
  57. Universita Degli Studi di Roma La Sapienza
  58. Joint Institute for Nuclear Research, Dubna, Russia
  59. Augustana University
  60. University of California, Los Angeles
  61. Uniwersytet Jagiellonski
  62. Institute of High Energy Physics CAS, China
+ Show Author Affiliations
We report measurements of the charged daughter fraction of 218Po as a result of the 222Rn alpha decay, and the mobility of 218Po+ ions, using radon-polonium coincidences from the 238U chain identified in 532 live-days of DarkSide-50 WIMP-search data. The fraction of 218Po that is charged is found to be 0.37 ± 0.03 and the mobility of 218Po+ is (8.6 ± 0.1) × 10-4 cm2/Vs.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1773038
Report Number(s):
PNNL-SA-160911
Journal Information:
Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 11 Vol. 14
Country of Publication:
United States
Language:
English

References (15)

Short-lived Rn-222 daughters in cryogenic liquids
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Radon-related Backgrounds in the LUX Dark Matter Search journal January 2015
The NUBASE2016 evaluation of nuclear properties journal March 2017
Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double- β decay journal June 2018
Imaging individual barium atoms in solid xenon for barium tagging in nEXO journal April 2019
Measurements of the ion fraction and mobility of α − and β -decay products in liquid xenon using the EXO-200 detector journal October 2015
Intrinsic backgrounds from Rn and Kr in the XENON100 experiment journal February 2018
Mobility and clustering of barium ions and dications in high-pressure xenon gas journal June 2018
The background in the $$0\nu \beta \beta $$ 0 ν β β experiment Gerda journal April 2014
Cluster ions in gas-based detectors journal July 2015
Low-Mass Dark Matter Search with the DarkSide-50 Experiment journal August 2018
Results from the first use of low radioactivity argon in a dark matter search journal April 2016
DarkSide-50 532-day dark matter search with low-radioactivity argon journal November 2018

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