Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment最新文献_第5页

Automatic optimization design of the in-focus varied line space plane-grating monochromator beamline for soft X-ray applications 软x射线聚焦变线距平面光栅单色光束线的自动优化设计

IF 1.4 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 : 2026-06-01 Epub Date: 2026-01-27 DOI: 10.1016/j.nima.2026.171325

Yingbo Shi

引用次数: 0

Absorber Clamp for Microcalorimeter Decay Energy Spectrometry 用于微热计衰减能谱的吸收钳

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-06 DOI: 10.1016/j.nima.2026.171368

Sophie L. Weidenbenner , Katrina E. Koehler , Mark P. Croce , Matthew H. Carpenter , Rico U. Schoenemann , Katherine A. Schreiber , Daniel T. Becker , Jason E. Nobles , Daniel R. Schmidt , Joel N. Ullom , Camille J. Palmer

{"title":"Absorber Clamp for Microcalorimeter Decay Energy Spectrometry","authors":"Sophie L. Weidenbenner , Katrina E. Koehler , Mark P. Croce , Matthew H. Carpenter , Rico U. Schoenemann , Katherine A. Schreiber , Daniel T. Becker , Jason E. Nobles , Daniel R. Schmidt , Joel N. Ullom , Camille J. Palmer","doi":"10.1016/j.nima.2026.171368","DOIUrl":"10.1016/j.nima.2026.171368","url":null,"abstract":"<div><div>Microcalorimeter Decay Energy Spectrometry (DES) is of interest to nuclear safeguards due to its ability to provide high precision isotopic compositions of nanogram-to microgram-scale samples of Pu and U and related daughter products. The DES method is able to record decay energy of each alpha-decay event in a sample that is embedded in a metal matrix (absorber) and thermally linked to a microcalorimeter detector. This work optimizes the DES technique used to thermally link the absorber and microcalorimeter detector element to allow for more rapid assembly and to increase detector performance and operating life. Optimized attachment methods are crucial for enhancing the viability of DES in high-sample-throughput facilities, such as those that support international nuclear safeguards measurements. Here, we designed and implemented a pressure-based absorber clamp and evaluated the performance of this new attachment method relative to pressed indium bond attachment. Results using the absorber clamp demonstrate a streamlined detector assembly procedure that minimizes accidental damage to detectors, as well as increasing detector pulse speeds by 57%. Spectral comparison shows the clamp preserves detector performance relative to indium attachment.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171368"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191074","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

In-beam characterization of ELISSA: The 4π position-sensitive silicon strip array at ELI-NP ELISSA的束内表征：elisa - np上的4π位置敏感硅条阵列

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-02 DOI: 10.1016/j.nima.2026.171317

T. Petruse , C. Matei , D.L. Balabanski , M. Costa , G.L. Guardo , I. Kuncser , M. La Cognata , D. Lattuada , A. Lupoae , H. Pai , A. Tumino , E. Udup , S. Aogaki

{"title":"In-beam characterization of ELISSA: The 4π position-sensitive silicon strip array at ELI-NP","authors":"T. Petruse , C. Matei , D.L. Balabanski , M. Costa , G.L. Guardo , I. Kuncser , M. La Cognata , D. Lattuada , A. Lupoae , H. Pai , A. Tumino , E. Udup , S. Aogaki","doi":"10.1016/j.nima.2026.171317","DOIUrl":"10.1016/j.nima.2026.171317","url":null,"abstract":"<div><div>Extreme Light Infrastructure Silicon Strip Array (ELISSA), the silicon strip detector array developed at the Extreme Light Infrastructure - Nuclear Physics (ELI-NP) facility in collaboration with the Instituto Nazionale de Fisica Nucleare - Laboratori Nazionali del Sud (INFN-LNS), is a 4<span><math><mi>π</mi></math></span> position-sensitive silicon strip array. The array is specifically designed to measure charged particles coming from photodisintegration reactions relevant for p-process nucleosynthesis and supernova explosions. The first in-beam tests of the ELISSA experimental set-up were performed at the 3 MV Tandetron accelerator of National Horia Hulubei National Institute for Research and Development in Physics and Nuclear Engineering (NIPNE). During this in-beam performance test, both analog and digital electronic modules were used to process the data. The performances (such as angular coverage, energy, and position resolution) of the silicon strip array are detailed in this paper. Alongside the measured characteristics, the simulation of the ELISSA array and a comparison of two read-out electronic chains and the two DAQ systems were also included.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171317"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191071","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

Initial results of hard X-ray spectroscopy by LaBr3 (Ce) detector for runaway electron study at the HL-3 tokamak LaBr3 （Ce）探测器用于HL-3托卡马克失控电子研究的硬x射线光谱初步结果

IF 1.4 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 : 2026-06-01 Epub Date: 2026-01-29 DOI: 10.1016/j.nima.2026.171321

Shikui Cheng , Qiubin Tang , Qiulei Yang , Yipo Zhang , Jie Zhang , Shuai Guan , Hongbing Xu

{"title":"Initial results of hard X-ray spectroscopy by LaBr3 (Ce) detector for runaway electron study at the HL-3 tokamak","authors":"Shikui Cheng , Qiubin Tang , Qiulei Yang , Yipo Zhang , Jie Zhang , Shuai Guan , Hongbing Xu","doi":"10.1016/j.nima.2026.171321","DOIUrl":"10.1016/j.nima.2026.171321","url":null,"abstract":"<div><div>The runaway electron (RE) diagnostic system in the HL-3 tokamak has been equipped with a Lanthanum Bromide (LaBr<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span>(Ce)) detector and a full digital data acquisition system, ensuring that this system can achieve high energy resolution and spectral temporal resolution. During the HL-3 plasma discharges with pulsed gas injection, the hard X-ray (HXR) diagnostic signals exhibit rapid response characteristics. In the auxiliary heating experiments with electron cyclotron resonance wave, low hybrid wave or neutral beam injection, the population of runaway electrons can be significantly enhanced. Moreover, it has been observed that the fluctuation of unstable modes with frequencies between 100–400 kHz are positively correlated with the intensity of HXR radiation. The enhancement of REs loss induced by the growth of the unstable modes may provide a potential method to mitigate plasma disruptions and inhibit the formation of runaway current plateaus.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171321"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081862","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

Implementation of a timing filter algorithm for double exponential kernel pulses in FPGA 双指数核脉冲定时滤波算法的FPGA实现

IF 1.4 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 : 2026-06-01 Epub Date: 2026-01-29 DOI: 10.1016/j.nima.2026.171326

Qing Qin , Qiang He , Shichang Zhang , Kaihong Fang , Meiying Zhu , Yao Wu , Jianxiong Shao

{"title":"Implementation of a timing filter algorithm for double exponential kernel pulses in FPGA","authors":"Qing Qin , Qiang He , Shichang Zhang , Kaihong Fang , Meiying Zhu , Yao Wu , Jianxiong Shao","doi":"10.1016/j.nima.2026.171326","DOIUrl":"10.1016/j.nima.2026.171326","url":null,"abstract":"<div><div>Accurate timing of the trigger signal is critical in coincidence measurements and other applications that require precise acquisition of signal timing information. We designed a bipolar filter suitable for fast signals by discretizing the double-exponential nuclear pulse into impulses. This process synthesizes two bilateral symmetric arbitrary triangular pulses, which are then delayed, subtracted, and finally passed through a moving-average filter to produce the output. This work uses MATLAB to simulate the filter algorithm, investigating the shaping results of nuclear signals under both noiseless and noisy conditions. In the experiment, our designed filter successfully achieves zero-crossing timing detection for fast pulses and enables the separation of pile-up pulses. Compared to the conventional RC-CR-CR filter, the bipolar restoration exhibits a fluctuation at the baseline that is reduced by approximately a factor of 5–6. These results demonstrate the filter's excellent pile-up rejection and baseline stabilization capabilities, conferring it strong potential for application in high-count-rate conditions.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171326"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190243","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

Characterization of 2′′×2′′ CeBr3 scintillator detectors 2个“×2”CeBr3闪烁体探测器的表征

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-03 DOI: 10.1016/j.nima.2026.171357

S. Manna , T.K. Rana , Deepak Pandit , Sudip Ghosh , Saswata Roy , S. Kundu , K. Banerjee , P. Pant , R. Shil , R. Pandey

{"title":"Characterization of 2′′×2′′ CeBr3 scintillator detectors","authors":"S. Manna , T.K. Rana , Deepak Pandit , Sudip Ghosh , Saswata Roy , S. Kundu , K. Banerjee , P. Pant , R. Shil , R. Pandey","doi":"10.1016/j.nima.2026.171357","DOIUrl":"10.1016/j.nima.2026.171357","url":null,"abstract":"<div><div>Characterization of a cylindrical CeBr<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> detector, 2<span><math><mrow><msup><mrow></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> crystal coupled to a photomultiplier tube (PMT) Hamamatsu R13089-100, has been carried out using various <span><math><mi>γ</mi></math></span>-ray sources with energies ranging from 81 to 4440 keV. The measured energy response of the detector has been compared with <span>Geant4</span> simulation. The time response of the crystal, essential for several nuclear physics applications, has also been studied, yielding a time resolution of 260(1) ps for a single detector for 1173–1333 keV <span><math><mi>γ</mi></math></span>-ray cascade. Furthermore, the intrinsic efficiency of the detector has been determined and compared with simulation results—reported for the first time for this crystal size.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171357"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190891","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}

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Calibration and characterisation of 2286 3-inch photomultiplier tubes for the water Cherenkov detector array of the LHAASO experiment LHAASO实验水切伦科夫探测器阵列中2286根3英寸光电倍增管的校准与表征

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-04 DOI: 10.1016/j.nima.2026.171361

Kun Jiang , Zehua Cao , Cheng Li , Xin Li , Xiurong Li , Yang Li , Ziwei Li , Ziyang Li , Zheng Liang , Pengzhong Lu , Kaifeng Shen , Kaiyang Wang , Yan Wang , Xin Wu , Zongkang Zeng , Cheng Liu , Zebo Tang

{"title":"Calibration and characterisation of 2286 3-inch photomultiplier tubes for the water Cherenkov detector array of the LHAASO experiment","authors":"Kun Jiang , Zehua Cao , Cheng Li , Xin Li , Xiurong Li , Yang Li , Ziwei Li , Ziyang Li , Zheng Liang , Pengzhong Lu , Kaifeng Shen , Kaiyang Wang , Yan Wang , Xin Wu , Zongkang Zeng , Cheng Liu , Zebo Tang","doi":"10.1016/j.nima.2026.171361","DOIUrl":"10.1016/j.nima.2026.171361","url":null,"abstract":"<div><div>The water Cherenkov detector array (WCDA) of the LHAASO experiment aims to survey gamma-ray sources with energies from 100 GeV to 30 TeV. 2220 3-inch photomultiplier tubes (PMTs) XP72B22 from Hainan Zhanchuang Photonics Technology Co., Ltd (HZC) are installed in the WCDA, detecting the Cherenkov photons generated by air shower particles in the water. The PMTs must have good single photoelectron resolution and a dynamic range of up to 3000 photoelectrons. Before installation, all PMTs were tested in the laboratory to determine their basic characteristics, which served as input to the WCDA experiment, to verify their compliance with the required specifications, and to provide feedback to the manufacturer. This paper presents the high-dynamic-range base design for the PMT XP72B22, the PMT batch test system, and test results for 2286 PMTs. 15 PMTs (0.66%) did not meet the required specifications and were rejected. The test results are compared with data measured by the HZC and by the Institute of High Energy Physics. Good consistency is achieved.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171361"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190883","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

Monte Carlo simulation of recoil trajectories in the gas-filled recoil separator SHANS2 using Geant4 toolkit 利用Geant4工具对充气后坐力分离器SHANS2的后坐力轨迹进行蒙特卡罗仿真

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-10 DOI: 10.1016/j.nima.2026.171376

M.M. Zhang , D.I. Solovyev , S. Kuzovlev , S.Y. Xu , Z.Y. Zhang , Z.G. Gan

{"title":"Monte Carlo simulation of recoil trajectories in the gas-filled recoil separator SHANS2 using Geant4 toolkit","authors":"M.M. Zhang , D.I. Solovyev , S. Kuzovlev , S.Y. Xu , Z.Y. Zhang , Z.G. Gan","doi":"10.1016/j.nima.2026.171376","DOIUrl":"10.1016/j.nima.2026.171376","url":null,"abstract":"<div><div>A Monte Carlo simulation model based on Geant4 toolkit has been developed to simulate the production of heavy-nuclei recoils and their trajectories through the gas-filled recoil separator SHANS2 (Spectrometer for Heavy Atoms and Nuclear Structure-2). Methods of the simulation model are presented and several physics processes were implemented in Geant4. A set of average charge states of heavy ions measured at SHANS2 in helium gas are presented and a new empirical formula based on the experimental data was derived to describe the charge-exchange process. The simulated results for the focal plane image size of recoils, magnetic rigidity dispersion, and transmission efficiency were compared with the data obtained in <sup>169</sup>Tm(<sup>40</sup>Ar, 4-5n)<span><math><msup><mrow></mrow><mrow><mn>204</mn><mo>,</mo><mn>205</mn></mrow></msup></math></span>Fr and <sup>208</sup>Pb(<sup>48</sup>Ca, 2n)<sup>254</sup>No reactions. Good agreement between simulation and experimental results is found, which allows us to use the model for tuning the separator in future experiments aimed at investigations of the heaviest nuclei.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1086 ","pages":"Article 171376"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146190888","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}

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Transforming Antarctic ice into a Cherenkov neutrino detector: From concept to discovery 把南极冰变成切伦科夫中微子探测器：从概念到发现

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-11 DOI: 10.1016/j.nima.2026.171372

Francis Halzen

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LACT: Status and future plans 现状和未来计划

IF 1.4 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 : 2026-06-01 Epub Date: 2026-02-09 DOI: 10.1016/j.nima.2026.171373

Shoushan Zhang

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