Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment最新文献_第7页

On-ground energy calibration of the Gamma-ray Transients Monitor (GTM) of the Formosat-8B satellite

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-17 DOI: 10.1016/j.nima.2025.170312

Chien-You Huang , Hsiang-Kuang Chang , Chih-Hsun Lin , Che-Chih Tsao , Chin-Ping Hu , Hao-Min Chang , Yan-Fu Chen , An-Hsuan Feng , Yi-Wen Huang , Tzu-Hsuan Lin , Yi-Ning Tsao , Chih-En Wu , Chun-Wei Wu

{"title":"On-ground energy calibration of the Gamma-ray Transients Monitor (GTM) of the Formosat-8B satellite","authors":"Chien-You Huang , Hsiang-Kuang Chang , Chih-Hsun Lin , Che-Chih Tsao , Chin-Ping Hu , Hao-Min Chang , Yan-Fu Chen , An-Hsuan Feng , Yi-Wen Huang , Tzu-Hsuan Lin , Yi-Ning Tsao , Chih-En Wu , Chun-Wei Wu","doi":"10.1016/j.nima.2025.170312","DOIUrl":"10.1016/j.nima.2025.170312","url":null,"abstract":"<div><div>The Gamma-ray Transients Monitor (GTM) on board the Formosat-8B (FS-8B) satellite is designed to detect and localize Gamma-Ray Bursts (GRBs). By utilizing two identical detector units with four sensor modules each, which are composed of GAGG(Ce) scintillators coupled with Silicon Photomultipliers (SiPMs) and oriented in various directions, the all-sky coverage is achieved. The GRB saturation fluences of GTM in the 50 keV to 1 MeV range for Short GRBs (SGRBs) and Long GRBs (LGRBs) are estimated to be about <span><math><mrow><mn>3</mn><mo>.</mo><mn>1</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></mrow></math></span> and <span><math><mrow><mn>5</mn><mo>.</mo><mn>0</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup><mspace></mspace><mi>erg</mi><mo>/</mo><msup><mrow><mi>cm</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span>, respectively, based on simulations. To precisely interpret the GTM readout signal in terms of energy, several measurements with isotopes and gain calibration were conducted to calibrate the ADC-to-energy relation of all readout channels. With careful analyses for crosstalk and SiPM saturation effects in the data, the energy spectrum can be mapped with a good readout ADC-to-energy relation. An approximate 16% energy resolution is achieved at the 662 keV gamma-ray energy.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170312"},"PeriodicalIF":1.5,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel low-background photomultiplier tube developed for xenon based detectors

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-16 DOI: 10.1016/j.nima.2025.170290

Youhui Yun , Zhizhen Zhou , Baoguo An , Zhixing Gao , Ke Han , Jianglai Liu , Yuanzi Liang , Yang Liu , Yue Meng , Zhicheng Qian , Xiaofeng Shang , Lin Si , Ziyan Song , Hao Wang , Mingxin Wang , Shaobo Wang , Liangyu Wu , Weihao Wu , Yuan Wu , Binbin Yan , Xinning Zeng

{"title":"A novel low-background photomultiplier tube developed for xenon based detectors","authors":"Youhui Yun , Zhizhen Zhou , Baoguo An , Zhixing Gao , Ke Han , Jianglai Liu , Yuanzi Liang , Yang Liu , Yue Meng , Zhicheng Qian , Xiaofeng Shang , Lin Si , Ziyan Song , Hao Wang , Mingxin Wang , Shaobo Wang , Liangyu Wu , Weihao Wu , Yuan Wu , Binbin Yan , Xinning Zeng","doi":"10.1016/j.nima.2025.170290","DOIUrl":"10.1016/j.nima.2025.170290","url":null,"abstract":"<div><div>Photomultiplier tubes (PMTs) are essential in xenon detectors like PandaX, LZ, and XENON experiments for dark matter searches and neutrino properties measurement. To minimize PMT-induced backgrounds, stringent requirements on PMT radioactivity are crucial. A novel 2-inch low-background R12699 PMT has been developed through a collaboration between the PandaX team and Hamamatsu Photonics K.K. corporation. Radioactivity measurements conducted with a high-purity germanium detector show levels of approximately 0.08 mBq/PMT for <sup>60</sup>Co and 0.06 mBq/PMT for the <sup>238</sup>U late chain, achieving a 15-fold reduction compared to R11410 PMT used in PandaX-4T. The radon emanation rate is below 3.2 <span><math><mi>μ</mi></math></span>Bq/PMT (@90% confidence level), while the surface <sup>210</sup>Po activity is less than 18.4 <span><math><mi>μ</mi></math></span>Bq/cm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>. The electrical performance of these PMTs at cryogenic temperature was evaluated. With an optimized readout base, the gain was enhanced by 30%, achieving an average gain of <span><math><mrow><mn>4</mn><mo>.</mo><mn>23</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>6</mn></mrow></msup></mrow></math></span> at -1000 V and -100 °C. The dark count rate averaged 2.5 Hz per channel. Compactness, low radioactivity, and robust electrical performance in the cryogenic temperature make the R12699 PMT ideal for next-generation liquid xenon detectors and other rare event searches.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1073 ","pages":"Article 170290"},"PeriodicalIF":1.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of a large-scale superconducting dipole magnet for the CEE spectrometer

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-16 DOI: 10.1016/j.nima.2025.170324

Yuquan Chen , Wei You , Jiaqi Lu , Yujin Tong , Luncai Zhou , Beimin Wu , Enming Mei , Wentian Feng , Xianjin Ou , Wei Wu , Qinggao Yao , Peng Yang , Yuhong Yu , Zhiyu Sun

{"title":"Design of a large-scale superconducting dipole magnet for the CEE spectrometer","authors":"Yuquan Chen , Wei You , Jiaqi Lu , Yujin Tong , Luncai Zhou , Beimin Wu , Enming Mei , Wentian Feng , Xianjin Ou , Wei Wu , Qinggao Yao , Peng Yang , Yuhong Yu , Zhiyu Sun","doi":"10.1016/j.nima.2025.170324","DOIUrl":"10.1016/j.nima.2025.170324","url":null,"abstract":"<div><div>The CSR External-target Experiment (CEE) is a large-scale spectrometer under construction at the Heavy Ion Research Facility in Lanzhou (HIRFL) for studying the phase structure of nuclear matter at high baryon density and the equation of states of nuclear matter at supra-saturation densities. One of the key components is a large acceptance dipole magnet with a central field of 5000 Gauss and the homogeneity of 5% within a 1 m long, 1.2 m wide, and 0.9 m high aperture. Detectors will be installed within this aperture. An innovative design for the superconducting detector magnet that goes beyond the conventional approach is proposed. The magnet is designed as a coil-dominant type, with conductors discretized on a racetrack-shaped cross-section to generate the necessary fields. A warm iron yoke is used to enhance the central field and minimize the stray field. The magnet has overall dimensions of 3.4 m in length, 2.7 m in height, and 4.3 m in width. The coils will be wound using a 19-strand rope cable comprised of 12 NbTi superconducting wires and 7 copper wires. The ratio of copper to superconductor of the cable is 6.9. The keel supports serve as the primary structural support for the coils to withstand the electromagnetic force. The superconducting coils will be indirectly cooled by liquid helium within three external helium vessels. To ensure reliable protection of the magnet during a quench, an active protection method combined with a quench-back effect is employed. This paper presents a detailed design of the magnetic field, structure, quench protection, and cryostat for the spectrometer magnet.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170324"},"PeriodicalIF":1.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online measurement system for natural water radioactivity with array CeBr3 detector

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-16 DOI: 10.1016/j.nima.2025.170334

Maolin Xiong , Liangquan Ge , Liquan Ge , Guoqiang Zeng , Qingxian Zhang , Yi Gu , Peng Yu , Zhipeng Deng , Shengliang Guo

{"title":"Online measurement system for natural water radioactivity with array CeBr3 detector","authors":"Maolin Xiong , Liangquan Ge , Liquan Ge , Guoqiang Zeng , Qingxian Zhang , Yi Gu , Peng Yu , Zhipeng Deng , Shengliang Guo","doi":"10.1016/j.nima.2025.170334","DOIUrl":"10.1016/j.nima.2025.170334","url":null,"abstract":"<div><div>With the development of power and non-power-related nuclear technologies, measurements of radioactivity levels in natural water have become an important part of environmental radioactivity monitoring. To improve the ability to monitor radioactivity levels in water and provide rapid warning for nuclear accidents, an online water radioactivity measurement system has been developed. The system is a gamma-ray detector array composed of three 45 mm × 50 mm CeBr<sub>3</sub> crystals coupled each to a photomultiplier tube (PMT). The detection efficiency and the minimum measurement time of the system were determined by numerical simulation, and <sup>241</sup>Am automatic spectrum stabilization technology was established to eliminate peak drift during long-term monitoring. The minimum detectable activity concentration (MDAC) of the system for the common artificial radionuclides <sup>131</sup>I, <sup>60</sup>Co, <sup>137</sup>Cs, <sup>192</sup>Ir and <sup>152</sup>Eu can reduce to 0.0161 Bq/L, 0.0149 Bq/L, 0.0142 Bq/L, 0.0458 Bq/L and 0.1067 Bq/L, respectively, for 12 h measurement time, within which the peak drift is less than ±1 channel. The measurement accuracy of the system was verified by a low-background gas-flow proportional counter, and the results show that the online measurement and laboratory analysis are found to be in very good agreement within uncertainties. The system was evaluated through the continuous measurement of the Qingyi River in Sichuan Province, the measurement results show that radionuclides in the Qingyi River included <sup>40</sup>K, <sup>214</sup>Bi, <sup>208</sup>Tl, <sup>214</sup>Pb, <sup>224</sup>Ra and <sup>226</sup>Ra, which ranged from 0.0024 to 0.21 Bq/L, and the gross α/β<sup>−</sup> activity concentration remains around 0.0145 Bq/L and 0.22 Bq/L, respectively.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170334"},"PeriodicalIF":1.5,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel tool for advanced analysis of Geant4 simulations of charged particles interactions in oriented crystals

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-15 DOI: 10.1016/j.nima.2025.170277

R. Negrello , L. Bandiera , N. Canale , P. Fedeli , V. Guidi , V.V. Haurylavets , A. Mazzolari , G. Paternò , M. Romagnoni , V.V. Tikhomirov , A. Sytov

引用次数: 0

Impact of neutron irradiation on LGADs with a carbon-enriched shallow multiplication layer: Degradation of timing performance and gain

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-15 DOI: 10.1016/j.nima.2025.170309

E. Navarrete Ramos , J. Duarte-Campderros , M. Fernández , G. Gómez , J. González , S. Hidalgo , R. Jaramillo , P. Martínez Ruiz del Árbol , M. Moll , C. Quintana , A.K. Sikdar , I. Vila , J. Villegas

{"title":"Impact of neutron irradiation on LGADs with a carbon-enriched shallow multiplication layer: Degradation of timing performance and gain","authors":"E. Navarrete Ramos , J. Duarte-Campderros , M. Fernández , G. Gómez , J. González , S. Hidalgo , R. Jaramillo , P. Martínez Ruiz del Árbol , M. Moll , C. Quintana , A.K. Sikdar , I. Vila , J. Villegas","doi":"10.1016/j.nima.2025.170309","DOIUrl":"10.1016/j.nima.2025.170309","url":null,"abstract":"<div><div>In this radiation tolerance study, Low Gain Avalanche Detectors (LGADs) with a carbon-enriched broad and shallow multiplication layer were examined in comparison to identical non-carbonated LGADs. Manufactured at IMB-CNM, the sensors underwent neutron irradiation at the TRIGA reactor in Ljubljana, reaching a fluence of 1.5×10 <sup>15</sup>n<sub>eq</sub>cm<sup>−2</sup>. The results revealed a smaller deactivation of boron and improved resistance to radiation in carbonated LGADs. The study demonstrated the potential benefits of carbon enrichment in mitigating radiation damage effects, particularly the acceptor removal mechanism, reducing the acceptor removal constant by more than a factor of two. Additionally, time resolution and collected charge degradation due to irradiation were observed, with carbonated samples exhibiting better radiation tolerance. A noise analysis focused on baseline noise and spurious pulses showed the presence of thermal-generated dark counts attributed to a too narrow distance between the gain layer end and the p-stop implant at the periphery of the pad for the characterized LGAD design; however, without significant impact of operation performance.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170309"},"PeriodicalIF":1.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FEL performance and tolerance studies of the EuPRAXIA@SPARC_LAB beamline AQUA

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-15 DOI: 10.1016/j.nima.2025.170291

Federico Nguyen , Luca Giannessi , Michele Opromolla , Alberto Petralia

引用次数: 0

Characterization of 2′′×2′′ LaBr3(Ce) scintillators for fast-timing spectroscopy

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-15 DOI: 10.1016/j.nima.2025.170308

Dhananjaya Sahoo , Madhu , A.Y. Deo , Yashraj , U.S. Ghosh , Indu Bala , R.P. Singh , Prince Raj Yadav , Mohit Kumar , A. Jhingan , Mamta Jain

{"title":"Characterization of 2′′×2′′ LaBr3(Ce) scintillators for fast-timing spectroscopy","authors":"Dhananjaya Sahoo , Madhu , A.Y. Deo , Yashraj , U.S. Ghosh , Indu Bala , R.P. Singh , Prince Raj Yadav , Mohit Kumar , A. Jhingan , Mamta Jain","doi":"10.1016/j.nima.2025.170308","DOIUrl":"10.1016/j.nima.2025.170308","url":null,"abstract":"<div><div>The present study primarily reports on the complete characterization of <span><math><mrow><msup><mrow><mn>2</mn></mrow><mrow><mo>′</mo><mo>′</mo></mrow></msup><mo>×</mo><msup><mrow><mn>2</mn></mrow><mrow><mo>′</mo><mo>′</mo></mrow></msup></mrow></math></span> LaBr<sub>3</sub>(Ce) scintillators coupled to fast Hamamatsu R2083 photomultiplier tubes (PMTs). The energy characteristics of the detector, such as linearity response, energy resolution, and intrinsic efficiency, are thoroughly investigated using standard radioactive sources (<sup>137</sup>Cs, <sup>60</sup>Co, and <sup>152</sup>Eu). The experimentally measured energy spectra and the intrinsic efficiency are compared with the GEANT4 simulations, indicating an overall good agreement between the measured and simulated results. In addition, the timing characteristics of the detectors are studied with a <sup>60</sup>Co source. The time resolution is optimized by varying the PMT bias voltages and Constant Fraction Discriminator (CFD) delays. The best time resolution for an individual LaBr<sub>3</sub>(Ce) scintillator coupled to R2083 PMT is measured to be 243(2) ps for 1173–1332 keV <span><math><mi>γ</mi></math></span>-ray energies. The measured time resolution is compared with the best values reported for different sizes of LaBr<sub>3</sub>(Ce) scintillators coupled to various PMTs.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170308"},"PeriodicalIF":1.5,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the impact of metalloporphyrins on DNA damage during electron beam irradiation

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-14 DOI: 10.1016/j.nima.2025.170328

A. Avetisyan , L. Mkrtchyan , S. Khosrovyan , L. Aloyan

{"title":"Investigating the impact of metalloporphyrins on DNA damage during electron beam irradiation","authors":"A. Avetisyan , L. Mkrtchyan , S. Khosrovyan , L. Aloyan","doi":"10.1016/j.nima.2025.170328","DOIUrl":"10.1016/j.nima.2025.170328","url":null,"abstract":"<div><div>This study explores the dose-dependent effects of ultrashort electron beams on DNA damage and the role of Zn-containing porphyrins in modulating this interaction. As advancements in electron beam technology continue to emerge, their potential applications in fields such as medicine and genetic engineering are becoming increasingly significant. However, the complex mechanisms governing the interaction between ultrashort electron beams and DNA remain largely uncharted. We investigated the influence of varying electron beam doses on DNA isolated from the calf thymus, as well as on DNA/porphyrin complexes. The presence of ZnTOEPyP porphyrin and its effects on radiation-induced DNA damage were examined at different relative concentrations of the complexes (r = 0.01; 0.02; 0.04, where r = C<sub>porph.</sub>/C<sub>DNA</sub>) and compared to previous findings. The study sought to uncover the potential potentiating effects of porphyrins on DNA damage, dependent on both porphyrin concentration and radiation dose. Utilizing spectroscopic melting methods in a 10<sup>−3</sup> M NaCl buffer solution. We identified the dependence of porphyrin-induced protective or radiation-enhancing effects on the combination of relative concentration and irradiation dose.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170328"},"PeriodicalIF":1.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Power-free tritium detector for DT fuels in fusion research

IF 1.5 3区物理与天体物理

Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment Pub Date : 2025-02-14 DOI: 10.1016/j.nima.2025.170332

Zhilin Chen, Yang Yang, Ping Chen, Shenghan Cheng, Yu Li, Wenxiang Jiang

{"title":"Power-free tritium detector for DT fuels in fusion research","authors":"Zhilin Chen, Yang Yang, Ping Chen, Shenghan Cheng, Yu Li, Wenxiang Jiang","doi":"10.1016/j.nima.2025.170332","DOIUrl":"10.1016/j.nima.2025.170332","url":null,"abstract":"<div><div>A novel kind of tritium detector for in-line tritium measurements for DT fuels recycling system in fusion research has been developed, which is capable of measuring tritium concentration by detecting the signal induced by electrons emitted in tritium beta decay directly without the application of voltage. This power-free tritium detector (PTD) is a compact type with sensitive volume only 0.7 mL, and it can be installed in-line and provide the real-time tritium concentration for the tritium processing. The response time of PTD is around 4.8 s when it is used as the detector of micro Gas Chromatography (micro-GC) in isotope separation system for fusion fuel system. Furthermore, the sensitivity of PTD is estimated to be as low as 3.2 ppm in the experiments. Characterized by a compact design, fast response time and high sensitivity, the PTD is able to be directly integrated within tritium fuel systems to facilitate the achievement of process control, tritium accountancy and radiation protection in fusion research.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1074 ","pages":"Article 170332"},"PeriodicalIF":1.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0