Initial performance of the high sensitivity alpha particle detector at the Yangyang underground laboratory
| Autor: | Y. D. Kim, David Leonard, Woon Gu Kang, C. Ha, P. Adhikari, B.H. Kim, J.S. Park, J.H. Lee, Hyo-Suk Lee, Y. S. Yoon, Yong Hamb Kim, Eunju Jeon, H. J. Kim, Govinda Adhikari, Stephen L. Olsen, Moo Hyun Lee, S.H. Yong |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics - Instrumentation and Detectors Argon Physics::Instrumentation and Detectors Detector FOS: Physical sciences chemistry.chemical_element Instrumentation and Detectors (physics.ins-det) Alpha particle Sample (graphics) Computational physics chemistry Ionization chamber Calibration High Energy Physics::Experiment Sensitivity (control systems) Instrumentation Helium |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 913:15-19 |
| ISSN: | 0168-9002 |
| Popis: | Initial performance of the UltraLo-1800 alpha particle detector at the 700 m deep Yangyang underground laboratory in Korea is described. The ionization detector uses Argon as a counting gas for measuring alpha events of a sample. We present initial calibration results and low-activity sample measurements based on the detector's pulse discrimination method and a hardware veto. A likelihood analysis that shows a separation of a bulk component from a surface component with a contamination depth from $^{210}$Po alpha particles using simulated models is presented. Comment: 14 pages, 11 figures, nima accepted |
| Databáze: | OpenAIRE |
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