PoS - Proceedings of Science
Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Posters
Silicon PIN photodiode-based radon detectors for an underground experiment environment.
K. Seo, H. Kim, H. Lee, M.H. Lee,* W. Kim, Y. Kim
*corresponding author
Full text: pdf
Published on: August 02, 2019
Abstract
It is very important to monitor the amount of radon (222Rn) in the underground experiments such as rare decay search and dark matter experiments with ultra-low background requirements. The radioactivity from the radon can be a significant background source to the experiments and need to be measured precisely. We upgraded a radon detector with a volume of ~70 L which was used in the KIMS (Korean Invisible Matter Search) experiment by replacing a Hamamatsu silicon PIN photodiode and a Hamamatsu pre-amplifier. The positively charged radon’s daughter particles (214Po and 218Po mostly) produced in the air of the detector chamber are collected by the photodiode in a negative high voltage. The energy resolutions of alpha particles emitted from the decays of the daughter particles are measured to be ~0.3% with very clean signals to be identified. In this presentation, we also made two more radon chamber detectors and have been testing them to be used in the underground experiment facility. We will present performances of the radon chamber detectors in the tests.
DOI: https://doi.org/10.22323/1.340.0803
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.