Edit Fenyvesi, Gábor Gyula Kiss, Dénes Molnár, Péter Lévai, Gergely Gábor Barnaföldi
{"title":"Status report on long-time decay measurements of 137Cs radioisotope","authors":"Edit Fenyvesi, Gábor Gyula Kiss, Dénes Molnár, Péter Lévai, Gergely Gábor Barnaföldi","doi":"arxiv-2409.00182","DOIUrl":null,"url":null,"abstract":"The constancy of nuclear decay rates can be investigated via long-duration\nprecision measurements. It is still an open question whether any (annual)\nmodulation can be observed. Long-lasting nuclear decay rate measurements have\nbeen the subject of considerable research effort. A decay rate measurement with\na 137Cs source is currently being conducted 30 meters below the ground at the\nJ\\'anossy Underground Research Laboratory (JURLab, Csilleb\\'erc, Hungary)\nutilizing a High-purity Germanium (HPGe) detector. The laboratory is the\nlow-radiation-background part of the Vesztergombi High Energy Laboratory (VLAB)\non the KFKI campus, Csilleb\\'erc, Hungary. From October 2022 to April 2024,\ndata of 18 months' worth have been collected, providing a new opportunity to\nlook for variations in decay rates. The experimental setup, data processing\nmethod, and the first results of this measurement are presented here.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.00182","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The constancy of nuclear decay rates can be investigated via long-duration
precision measurements. It is still an open question whether any (annual)
modulation can be observed. Long-lasting nuclear decay rate measurements have
been the subject of considerable research effort. A decay rate measurement with
a 137Cs source is currently being conducted 30 meters below the ground at the
J\'anossy Underground Research Laboratory (JURLab, Csilleb\'erc, Hungary)
utilizing a High-purity Germanium (HPGe) detector. The laboratory is the
low-radiation-background part of the Vesztergombi High Energy Laboratory (VLAB)
on the KFKI campus, Csilleb\'erc, Hungary. From October 2022 to April 2024,
data of 18 months' worth have been collected, providing a new opportunity to
look for variations in decay rates. The experimental setup, data processing
method, and the first results of this measurement are presented here.
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