S. Ajimura , K. Akutagawa , T. Batpurev , F. Doukaku , K. Fushimi , R. Hazama , K. Ichimura , T. Iida , H. Kakubata , K. Kanagawa , S. Katagiri , B.T. Khai , T. Kishimoto , X. Li , T. Maeda , A. Masuda , K. Matsuoka , K. Mizukoshi , K. Morishita , K. Nakajima , N. Yotsunaga
{"title":"CANDLES-III 探测器：用于研究 48Ca 的无中微子双 β 衰变的低背景光谱仪","authors":"S. Ajimura , K. Akutagawa , T. Batpurev , F. Doukaku , K. Fushimi , R. Hazama , K. Ichimura , T. Iida , H. Kakubata , K. Kanagawa , S. Katagiri , B.T. Khai , T. Kishimoto , X. Li , T. Maeda , A. Masuda , K. Matsuoka , K. Mizukoshi , K. Morishita , K. Nakajima , N. Yotsunaga","doi":"10.1016/j.nima.2024.169982","DOIUrl":null,"url":null,"abstract":"<div><div>The CANDLES-III detector was installed at the Kamioka Observatory in Japan to investigate the double <span><math><mi>β</mi></math></span> decay of <sup>48</sup>Ca. This system combines an undoped calcium fluoride scintillator with a long attenuation length (larger than 100 cm), and a two-phase liquid scintillator, thereby serving as a larger-mass detector of 305 kg (contains 350 g of <sup>48</sup>Ca) while maintaining a high energy resolution (<span><math><mrow><mi>σ</mi><mo>=</mo><mn>2</mn><mo>.</mo><mn>6</mn></mrow></math></span>% at <span><math><mi>Q</mi></math></span>-value of <sup>48</sup>Ca double beta decay). Low-background conditions are achieved in the energy region of interest by improving the light yield and collection efficiency of the detector system, allowing to access a high energy resolution, as well as by installing passive and active radiation shielding, and using pulse-shape analysis. This paper describes the details of the detector including its site and data acquisition system and presents its performance characterization.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1069 ","pages":"Article 169982"},"PeriodicalIF":1.5000,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"CANDLES-III detector: Low-background spectrometer for studying neutrino-less double β decay of 48Ca\",\"authors\":\"S. Ajimura , K. Akutagawa , T. Batpurev , F. Doukaku , K. Fushimi , R. Hazama , K. Ichimura , T. Iida , H. Kakubata , K. Kanagawa , S. Katagiri , B.T. Khai , T. Kishimoto , X. Li , T. Maeda , A. Masuda , K. Matsuoka , K. Mizukoshi , K. Morishita , K. Nakajima , N. Yotsunaga\",\"doi\":\"10.1016/j.nima.2024.169982\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The CANDLES-III detector was installed at the Kamioka Observatory in Japan to investigate the double <span><math><mi>β</mi></math></span> decay of <sup>48</sup>Ca. This system combines an undoped calcium fluoride scintillator with a long attenuation length (larger than 100 cm), and a two-phase liquid scintillator, thereby serving as a larger-mass detector of 305 kg (contains 350 g of <sup>48</sup>Ca) while maintaining a high energy resolution (<span><math><mrow><mi>σ</mi><mo>=</mo><mn>2</mn><mo>.</mo><mn>6</mn></mrow></math></span>% at <span><math><mi>Q</mi></math></span>-value of <sup>48</sup>Ca double beta decay). Low-background conditions are achieved in the energy region of interest by improving the light yield and collection efficiency of the detector system, allowing to access a high energy resolution, as well as by installing passive and active radiation shielding, and using pulse-shape analysis. This paper describes the details of the detector including its site and data acquisition system and presents its performance characterization.</div></div>\",\"PeriodicalId\":19359,\"journal\":{\"name\":\"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment\",\"volume\":\"1069 \",\"pages\":\"Article 169982\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-10-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0168900224009082\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168900224009082","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
CANDLES-III detector: Low-background spectrometer for studying neutrino-less double β decay of 48Ca
The CANDLES-III detector was installed at the Kamioka Observatory in Japan to investigate the double decay of 48Ca. This system combines an undoped calcium fluoride scintillator with a long attenuation length (larger than 100 cm), and a two-phase liquid scintillator, thereby serving as a larger-mass detector of 305 kg (contains 350 g of 48Ca) while maintaining a high energy resolution (% at -value of 48Ca double beta decay). Low-background conditions are achieved in the energy region of interest by improving the light yield and collection efficiency of the detector system, allowing to access a high energy resolution, as well as by installing passive and active radiation shielding, and using pulse-shape analysis. This paper describes the details of the detector including its site and data acquisition system and presents its performance characterization.
期刊介绍：
Section A of Nuclear Instruments and Methods in Physics Research publishes papers on design, manufacturing and performance of scientific instruments with an emphasis on large scale facilities. This includes the development of particle accelerators, ion sources, beam transport systems and target arrangements as well as the use of secondary phenomena such as synchrotron radiation and free electron lasers. It also includes all types of instrumentation for the detection and spectrometry of radiations from high energy processes and nuclear decays, as well as instrumentation for experiments at nuclear reactors. Specialized electronics for nuclear and other types of spectrometry as well as computerization of measurements and control systems in this area also find their place in the A section.
Theoretical as well as experimental papers are accepted.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
