Radon Concentration Measurement with a High-Sensitivity Radon Detector at the Yemilab
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911870395351040 |
|---|---|
| author | Seo, Kyungmin Kim, Hyunsoo Kim, Yeongduk Lee, Hyeyoung Lee, Jaison Lee, Moo Hyun So, Jungho Yoon, Sangcheol Yoon, Youngsoo |
| author_facet | Seo, Kyungmin Kim, Hyunsoo Kim, Yeongduk Lee, Hyeyoung Lee, Jaison Lee, Moo Hyun So, Jungho Yoon, Sangcheol Yoon, Youngsoo |
| contents | The radiation emitted from radon is a critical background in rare event search experiments conducted at the Yemi Underground Laboratory (Yemilab) in Jeongseon, Korea. A Radon Reduction System(RRS) has been developed and installed in Yemilab to reduce radon concentration in the air. The RRS primarily provides a purified air of 50 m3/h to the cleanroom used to assemble crystal detectors in the AMoRE, a neutrinoless double beta decay search experiment. RRS can reduce the radon level by a factor of 300, so a high-sensitivity radon detector was required. A highly sensitive radon detector was constructed using a 70 L chamber with a large PIN photodiode to measure radon concentration in the purified air. The radon detector shows an excellent resolution of 72 keV (FWHM) for 6.003 MeV alphas from 218Po decay and a sensitivity down to 23.8 +- 2.1 mBq/m3 with a boil-off N2 gas sample. The radon concentration level from the RRS measured by the radon detector was below 0.29 Bq/m3 with a reduction factor of about 300. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_07405 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Radon Concentration Measurement with a High-Sensitivity Radon Detector at the Yemilab Seo, Kyungmin Kim, Hyunsoo Kim, Yeongduk Lee, Hyeyoung Lee, Jaison Lee, Moo Hyun So, Jungho Yoon, Sangcheol Yoon, Youngsoo Instrumentation and Detectors Instrumentation and Methods for Astrophysics High Energy Physics - Experiment Nuclear Experiment The radiation emitted from radon is a critical background in rare event search experiments conducted at the Yemi Underground Laboratory (Yemilab) in Jeongseon, Korea. A Radon Reduction System(RRS) has been developed and installed in Yemilab to reduce radon concentration in the air. The RRS primarily provides a purified air of 50 m3/h to the cleanroom used to assemble crystal detectors in the AMoRE, a neutrinoless double beta decay search experiment. RRS can reduce the radon level by a factor of 300, so a high-sensitivity radon detector was required. A highly sensitive radon detector was constructed using a 70 L chamber with a large PIN photodiode to measure radon concentration in the purified air. The radon detector shows an excellent resolution of 72 keV (FWHM) for 6.003 MeV alphas from 218Po decay and a sensitivity down to 23.8 +- 2.1 mBq/m3 with a boil-off N2 gas sample. The radon concentration level from the RRS measured by the radon detector was below 0.29 Bq/m3 with a reduction factor of about 300. |
| title | Radon Concentration Measurement with a High-Sensitivity Radon Detector at the Yemilab |
| topic | Instrumentation and Detectors Instrumentation and Methods for Astrophysics High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2403.07405 |