Journal of Instrumentation最新文献_第8页

Proton spectroscopy for 11B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure 利用 RCF 薄膜进行 11B(p,α)2α 核聚变反应的质子光谱学：校准和展开程序

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04046

M. Guarrera, G. Petringa, G. Milluzzo, R. Catalano, V. Kantarelou, C. Siragusa, F. Midili, M. La Cognata, L. Guardo, D. Lattuada, D. Passarello, G. Angemi, S. Arjmand, G. Cantone, E. Caruso, G. Cuttone, F. Farokhi, S. Fattori, O. Giampiccolo, L. Giuffrida, A. Kurmanova, D. Margarone, D. Oliva, A. Pappalardo, A. Pizzino, F. Schillaci, A. Sciuto, J. Suarez, G. Cirrone

{"title":"Proton spectroscopy for 11B(p,α)2α fusion reaction with RCF films: calibration and unfolding procedure","authors":"M. Guarrera, G. Petringa, G. Milluzzo, R. Catalano, V. Kantarelou, C. Siragusa, F. Midili, M. La Cognata, L. Guardo, D. Lattuada, D. Passarello, G. Angemi, S. Arjmand, G. Cantone, E. Caruso, G. Cuttone, F. Farokhi, S. Fattori, O. Giampiccolo, L. Giuffrida, A. Kurmanova, D. Margarone, D. Oliva, A. Pappalardo, A. Pizzino, F. Schillaci, A. Sciuto, J. Suarez, G. Cirrone","doi":"10.1088/1748-0221/19/04/c04046","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/c04046","url":null,"abstract":"\u0000 The reaction occurring between protons and 11B isotope (p+11B → 3α+8.7 MeV) has recently attracted attention as a possible candidate to overcome the generation of high-energy neutrons via the more studied Deuterium-Tritium fusion reaction. Since the early 2000s, several experiments have been carried out to investigate the viability of triggering this aneutronic reaction in laser-target interaction schemes. During these experiments, the total number of escaping α particles is measured to infer fusion reaction efficiency. However, the accurate detection of α particles in such experiments poses a real challenge.\u0000\u0000In this scenario, \u0000RadioChromic Films\u0000(RCFs) arranged in a stack configuration can be used for the fluence and energy spectra reconstruction of generated protons, being this mandatory information in both “pitcher-catcher” and “in plasma” p-11B irradiation schemes. Nevertheless, RCF response exhibits a dependence on Linear Energy Transfer (LET), which leads to an underestimation of the response in high-LET conditions. This can result in dosimetric errors if not properly taken into account.\u0000In this work, an analytical procedure able to reconstruct the incident energy spectra in an RCF stack was developed and validated thanks to a calibration procedure that was established for high and low proton energy (4–60 MeV) beams to properly reconstruct the incident spectra in the “pitcher-catcher” irradiation scheme.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140787609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 method for efficiently measuring the non-proportionality of scintillators between light output and alpha particle energies from 1.8 MeV to 5.2 MeV 有效测量闪烁体的光输出与 1.8 兆电子伏至 5.2 兆电子伏α粒子能量之间不成正比关系的新方法

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/p04011

S. Yamamoto, Masao Yoshino, K. Nakanishi, Kei Kamada, Akira Yoshikawa, J. Kataoka

{"title":"A novel method for efficiently measuring the non-proportionality of scintillators between light output and alpha particle energies from 1.8 MeV to 5.2 MeV","authors":"S. Yamamoto, Masao Yoshino, K. Nakanishi, Kei Kamada, Akira Yoshikawa, J. Kataoka","doi":"10.1088/1748-0221/19/04/p04011","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/p04011","url":null,"abstract":"\u0000 It is known that scintillators exhibit non-proportional\u0000 behavior between light output and the energy of gamma photons or\u0000 beta particles. However, the non-proportionality between light\u0000 output in scintillators and the energy of alpha particles has not\u0000 been extensively measured, likely due to the challenges associated\u0000 with preparing alpha particles with varying energies. To address\u0000 this issue, we propose a novel method to modulate the energy of\u0000 alpha particles using an americium-241 (Am-241) source covered with\u0000 different numbers of Mylar films. By irradiating various\u0000 scintillators, including GAGG, GGAG, YAP(Ce), and plastic\u0000 scintillator, with alpha particles of different energies, we\u0000 measured and evaluated the non-proportional response of these\u0000 scintillators. We then compared the measured response as a function\u0000 of incident energy to a simulation, which assumes a proportional\u0000 response to evaluate the non-proportionality. For all the\u0000 scintillators tested, non-proportionality was observed; the light\u0000 output per MeV at 1.8 MeV ranged from 0.60 to 0.81 of the values\u0000 observed at 5.2 MeV. The non-proportional response was largest\u0000 for plastic scintillator (0.60) and smallest for GAGG (0.81). We\u0000 conclude that the proposed method could be an efficient means of\u0000 measuring the non-proportionality of scintillators between light\u0000 output and alpha particle energies","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140797305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The far-field diffraction of a plane wave on a system of randomly and in average periodically located point scatterers: the Debye-Waller factor 平面波在随机且平均周期性分布的点散射体系统上的远场衍射：Debye-Waller 因子

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04037

A.Zh. Khachatrian

引用次数: 0

Characterization of the FOOT neutron detectors for nuclear fragmentation measurements at the n_TOF facility 用于 n_TOF 设施核碎裂测量的 FOOT 中子探测器的特性分析

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04006

R. Zarrella, A. Manna, S. Amaducci, M. Bacak, A. Casanovas, S. Colombi, C. D'Orazio, F. García-Infantes, N. Malekinezhad, M. Marafini, C. Massimi, A. Mengoni, A. Musumarra, N. Patronis, J. Pavón-Rodriguez, M. Pellegriti, R. Spighi, E. Stamati, M. Villa

{"title":"Characterization of the FOOT neutron detectors for nuclear fragmentation measurements at the n_TOF facility","authors":"R. Zarrella, A. Manna, S. Amaducci, M. Bacak, A. Casanovas, S. Colombi, C. D'Orazio, F. García-Infantes, N. Malekinezhad, M. Marafini, C. Massimi, A. Mengoni, A. Musumarra, N. Patronis, J. Pavón-Rodriguez, M. Pellegriti, R. Spighi, E. Stamati, M. Villa","doi":"10.1088/1748-0221/19/04/c04006","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/c04006","url":null,"abstract":"\u0000 FOOT (FragmentatiOn Of Target) is an applied nuclear physics experiment with the aim of performing high precision cross section measurements for fragmentation reactions of interest in hadrontherapy and radiation protection in space. The physics program of the experiment foresees a set of measurements with light ion beams, such as C and O, in the energy range of 100–800 MeV/u interacting with tissue-like and shielding material targets. The setup was initially conceived for the detection of charged fragments and, in 2021, the Collaboration started the study of possible solutions for neutron detection. Two detection systems have been proposed: one based on BC-501A liquid scintillators with neutron/γ discrimination capabilities and a system based on BGO crystals operated in phoswich mode. In 2022, a dedicated data acquisition campaign was carried out at the n_TOF facility at CERN to evaluate the capabilities of the two systems. First, the neutron/γ discrimination efficiency of the BC-501A system was studied using radioactive sources. Then, the two systems were placed in the n_TOF experimental area to study their neutron detection efficiency under a well characterized neutron beam. In this work, the first preliminary results concerning the characterization of the two possible neutron detectors of FOOT are presented.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140756029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MightyPix at the LHCb Mighty Tracker — verificationof an HV-CMOS pixel chip's digital readout LHCb Mighty Tracker 的 MightyPix--验证 HV-CMOS 像素芯片的数字读数

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04045

S. Scherl, N. Striebig, K. Hennessy, I. Perić, E. Vilella

引用次数: 0

Simulation of a semiconductor voxelized helmet brain PET scanner 模拟半导体体素化头盔脑 PET 扫描仪

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/p04030

Machiel Kolstein, Mokhtar Chmeissani, Divya Saini, Juan Carlos Martín Miramón

{"title":"Simulation of a semiconductor voxelized helmet brain PET scanner","authors":"Machiel Kolstein, Mokhtar Chmeissani, Divya Saini, Juan Carlos Martín Miramón","doi":"10.1088/1748-0221/19/04/p04030","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/p04030","url":null,"abstract":"\u0000 Alzheimer's disease (AD) is a mental deterioration that severely impacts memory, disrupts brain functionality and induces physical changes to the brain.\u0000It is at present an incurable disease but a timely diagnosis of AD can help to slow down its progression.\u0000Invasive methods to collect cerebrospinal fluid (CSF) biomarkers are increasingly being used for the diagnosis of AD.\u0000Alternatively, because of the growing effort in trying to detect the early markers of AD,\u0000 nowadays there are many neuroimaging projects developing\u0000 non-invasive dedicated brain positron emission tomography (PET) scanners with a helmet shape.\u0000In this work, a helmet shaped brain PET is proposed with high spatial and energy resolutions, which could play a vital role in the early diagnosis of AD.\u0000It consists of highly 3D segmented detector modules with a density of more than 350 channels/cm3 and a seamless geometry based on trapezoidal-shaped modules equipped with semiconductor CdTe detectors.\u0000The proposed helmet brain PET scanner has an axial field-of-view (FOV) of 154 mm, and inner and outer radii of 133 mm and 206 mm respectively.\u0000Its performance has been evaluated via simulations based on NEMA protocols and compared to other brain PET scanners.\u0000Additionally, brain PET/CT images in DICOM format were used for a more realistic and stringent test of the imaging quality of the proposed PET scanner and the reconstruction of regional FDG uptakes.\u0000Results are presented that show that the proposed PET scanner\u0000 can detect deviations in uptake of 2% or larger from a reference image.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140783680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

(H3O)Li2(IO3)3: crystal structure and IR spectrum (H3O)Li2(IO3)3：晶体结构和红外光谱

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04018

R.P. Sukiasyan, A. Danghyan, R.A. Apreyan, N.S. Gharibyan, A.K. Atanesyan

引用次数: 0

Integration of EDWARD readout architecture in full-field fluorescence imaging detector 在全场荧光成像探测器中集成 EDWARD 读出架构

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04035

D. Gorni, G. Carini, G. Deptuch, A. Kuczewski, P. Maj, S. Mandal, G. Pinaroli, A. Rumaiz, D. Siddons, N.St. John

引用次数: 0

Universal test system for boards hosting bPOL12V DC-DC converters 用于安装 bPOL12V DC-DC 转换器的电路板的通用测试系统

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04032

K. Stachon, G. Dissertori, T. Gadek, W. Lustermann

引用次数: 0

Overview of the ATLAS High-Granularity Timing Detector: project status and results ATLAS 高粒度定时探测器概述：项目现状和成果

Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04008

M. Missio

引用次数: 0