Results from a calibration of XENON100 using a source of dissolved radon-220

6533b7d1fe1ef96bd125d969

RESEARCH PRODUCT

Results from a calibration of XENON100 using a source of dissolved radon-220

The Collaboration Xenon E. Aprile J. Aalbers F. Agostini M. Alfonsi F. D. Amaro M. Anthony F. Arneodo P. Barrow L. Baudis B. Bauermeister J. A. M. Lopes R. Itay B. Kaminsky G. Kessler A. Kish U. Oberlack H. Landsman R. F. Lang M. Lecalloch D. Lellouch F. Piastra Q. Lin S. Lindemann A. Manfredini M. Lindner I. Maris T. Marrodan Undagoitia F. V. Massoli J. Masbou D. Masson D. Mayani M. Messina Y. Meng K. Micheneau B. Miguez A. Molinario J. Schreiner M. Murra J. Naganoma S. E. A. Orrigo K. Ni E. Shockley P. Pakarha B. Pelssers J. Pienaar R. Persiani M. -C Piro G. P. Lante L. Rauch N. Priel S. Reichard C. Reuter S. Rosendahl A. Rizzo N. Rupp R. Saldanha J. M. F. Dos Santos M. L. Benabderrahmane G. Sartorelli M. Scheibelhut M. Schumann S. Schindler S. Bruenner L. Scotto Lavina M. Selvi M. Silva P. Shagin H. Simgen M. V. Sivers D. Thers A. Stein A. Tiseni G. Trinchero N. Upole C. Tunnell H. Wang Y. Wei C. Weinheimer J. M. R. Cardoso J. Wulf J. Ye T. Berger Y. Zhang A. Fieguth P. A. Breur A. Brown G. Bruno E. Brown R. Budnik L. Butikofer M. Cervantes J. Calven D. Cichon D. Coderre J. Conrad A. P. Colijn J. P. Cussonneau M. P. Decowski P. Deperio F. Gao P. Digangi A. Digiovanni S. Diglio E. Duchovni L. Levinson G. Eurin J. Fei D. Franco A. D. Ferella W. Fulgione Andrea Gallo Rosso M. Garbini M. Galloway C. Geis L. W. Goetzke Z. Greene L. Grandi C. Grignon C. Hasterok E. Hogenbirk

subject

Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors Dark matter FOS: Physical sciences chemistry.chemical_element Radon 01 natural sciences Coincidence Nuclear physics Recoil Optics Xenon XENON DARK MATTER WIMPS CALIBRATION RADON 0103 physical sciences Calibration [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]010306 general physics Physics 010308 nuclear & particles physics business.industry Detector Astrophysics::Instrumentation and Methods for Astrophysics Order (ring theory)Instrumentation and Detectors (physics.ins-det)chemistry High Energy Physics::Experiment business

description

A Rn 220 source is deployed on the XENON100 dark matter detector in order to address the challenges in calibration of tonne-scale liquid noble element detectors. We show that the Pb 212 beta emission can be used for low-energy electronic recoil calibration in searches for dark matter. The isotope spreads throughout the entire active region of the detector, and its activity naturally decays below background level within a week after the source is closed. We find no increase in the activity of the troublesome Rn 222 background after calibration. Alpha emitters are also distributed throughout the detector and facilitate calibration of its response to Rn 222 . Using the delayed coincidence of Rn 220 - Po 216 , we map for the first time the convective motion of particles in the XENON100 detector. Additionally, we make a competitive measurement of the half-life of Po 212 , t1 /2=(293.9 ±(1.0 )stat±(0.6 )sys) ns .

year	journal	country	edition	language
2017-04-11

http://hdl.handle.net/21.11116/0000-0001-2B29-2