Nuclear Instruments and Methods in Physics Research最新文献_第7页

A gas scintillation drift chamber for heavy ion detection 一种用于重离子探测的气体闪烁漂移室

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-15 DOI: 10.1016/0167-5087(84)90279-5

K.D. Mathis, M. Simon, M. Henkel

引用次数: 1

Design and development of a computer-based continuous monitor for the determination of the short-lived decay products of radon and thoron 基于计算机的氡、钍短寿命衰变产物连续监测仪的设计与研制

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-15 DOI: 10.1016/0167-5087(84)90278-3

J. Bigu, R. Raz, K. Golden, P. Dominguez

{"title":"Design and development of a computer-based continuous monitor for the determination of the short-lived decay products of radon and thoron","authors":"J. Bigu, R. Raz, K. Golden, P. Dominguez","doi":"10.1016/0167-5087(84)90278-3","DOIUrl":"10.1016/0167-5087(84)90278-3","url":null,"abstract":"<div><p>A portable, rugged, monitor has been designed and built for measuring the short-lived decay products of radon and thoron. The monitor is computer-based and employs a continuous filter strip which can be advanced at programmable time intervals to allow unattended continuous operation with automatic sampling, analysis and recording of radiation levels. Radionuclide analysis is carried out by two silicon diffused-junction alpha-detectors and electronic circuitry with multichannel spectral analysis capabilities. Standard gross α-count methods and α-spectroscopy methods can easily be implemented. The built-in computer performs a variety of operations via a specially designed interface module, including control and data recording functions, and computations, program storage and display functions. Programs and data are stored in the built-in casette tape drive and the computer integrated CRT display and keyboard allow simple, prompted menu-type operation of standard software. Graphical presentation of α-spectra can be shown on the computer CRT and printed when required on the computer built-in thermal printer. In addition to implementing the specially developed radionuclide analysis software, the operator can interact and modify existing software, and program new ones, through BASIC language programming, or employ the computer in a totally unrelated, general purpose mode. Although the monitor is ideally suited for environmental radon (thoron) daughter monitoring, it could also be used in the determination of other airbone radionuclides provided adequate analytical procedures are developed or included in the already existing computer software.</p></div>","PeriodicalId":100972,"journal":{"name":"Nuclear Instruments and Methods in Physics Research","volume":"225 2","pages":"Pages 399-406"},"PeriodicalIF":0.0,"publicationDate":"1984-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5087(84)90278-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74347002","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: 6

The use of a nitrogen laser for observation of space charge effects in drift chambers and development of high precision vertex chambers 用氮激光观测漂移室空间电荷效应及高精度顶点室的研制

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91332-2

J. Va'vra

引用次数: 6

Two-arm semiconductor spectrometer for charged particles for the investigation of absorption by nuclei of stopped negative pions 用于研究被停止的负介子的核吸收的带电粒子的双臂半导体光谱仪

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91335-8

M.G. Gornov, Yu.B. Gurov, A.S. Lukin, P.V. Morokhov, V.A. Pechkurov, A.P. Pichugin, V.I. Saveliev, R.R. Shafigullin, F.M. Sergeev, A.A. Khomutov, K.O. Oganesian, B.P. Osipenko, V.G. Sandukovsky

{"title":"Two-arm semiconductor spectrometer for charged particles for the investigation of absorption by nuclei of stopped negative pions","authors":"M.G. Gornov, Yu.B. Gurov, A.S. Lukin, P.V. Morokhov, V.A. Pechkurov, A.P. Pichugin, V.I. Saveliev, R.R. Shafigullin, F.M. Sergeev, A.A. Khomutov, K.O. Oganesian, B.P. Osipenko, V.G. Sandukovsky","doi":"10.1016/0167-5087(84)91335-8","DOIUrl":"10.1016/0167-5087(84)91335-8","url":null,"abstract":"<div><p>A two-arm semiconductor spectrometer for the detection of secondary charged particles, such as p, d, t, <sup>3</sup>He, <sup>4</sup>He and of their correlations in the process of stopped pion absorption by nuclei is described. The spectrometer consists of two telescopes of Si-detectors with a sensitive surface of 800 mm<sup>2</sup>, two semiconductor detectors as monitors and the “live” target, a silicon surface barrier detector. The number of semiconductor detectors is 19.</p><p>A technique for pion stop selection in thin targets is described.</p><p>The problem of particle identification and of measurements of their energy with the help of a multicrystal semiconductor telescope is discussed. The technique provides an absolute normalization of spectra. The “alive” target helps to obtain more information on the process of pion absorption by Si-nuclei.</p></div>","PeriodicalId":100972,"journal":{"name":"Nuclear Instruments and Methods in Physics Research","volume":"225 1","pages":"Pages 42-50"},"PeriodicalIF":0.0,"publicationDate":"1984-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5087(84)91335-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82363506","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: 18

Behaviour of an intrinsic fission-couple in a long duration neutron pulse 长持续时间中子脉冲内禀裂变偶的行为

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91354-1

D.N. Srivastava

引用次数: 1

Bismuth germanate scintillator as a fast high-energy ion detector 锗酸铋闪烁体作为快速高能离子探测器

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91362-0

F.D. Becchetti , P.M. Lister , C.E. Thorn

引用次数: 11

Energy resolution of silicon surface-barrier detectors for oxygen and sulphur ions 氧和硫离子硅表面势垒探测器的能量分辨

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91339-5

Ernest D. Klema, Frank J. Camelio, Tillman K. Saylor

{"title":"Energy resolution of silicon surface-barrier detectors for oxygen and sulphur ions","authors":"Ernest D. Klema, Frank J. Camelio, Tillman K. Saylor","doi":"10.1016/0167-5087(84)91339-5","DOIUrl":"10.1016/0167-5087(84)91339-5","url":null,"abstract":"<div><p>A group of 9 silicon surface-barrier detectors, 4 manufactured by ORTEC and 5 fabricated by the first author and his students. has been tested for their energy resolutions with oxygen ions of 36.750 and 50 MeV energy and sulphur ions of 51.086 MeV energy from the University of Pittsburgh Van de Graaff accelerator. Six of the detectors had previously been tested with oxygen ions of 25 and 50 MeV energy at Pittsburgh, and those results are compared with the present ones. It is now possible to conclude that the energy resolution of the best detectors is independent of oxygen ion energy between 36.750 and 50 MeV and is about 100 keV (fwhm). When tested with sulphur ions, 4 of the detectors showed anomalous effects, including peaks and smudges both below and above the main peak. Some of these could be eliminated by varying the reverse bias voltage across the detector, others could not. In particular, the ORTEC detector 40, used in the previous work as the standard detector presently available, did not show a single peak at any bias. It is an excellent detector for oxygen ions, but is not useful for sulphur ions. The energy resolution of the best detectors for 51.086 MeV sulphur ions is under 300 keV (fwhm).</p></div>","PeriodicalId":100972,"journal":{"name":"Nuclear Instruments and Methods in Physics Research","volume":"225 1","pages":"Pages 72-77"},"PeriodicalIF":0.0,"publicationDate":"1984-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-5087(84)91339-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85166671","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: 6

Charge-division type position sensing with a single-wire position sensitive counter in the self-quenching streamer mode 在自猝灭流光模式下，带有单线位置敏感计数器的电荷分型位置传感

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91345-0

H. Kametani , T. Sakae , K. Komatsu , H. Ijiri , M. Matoba , N. Koori

引用次数: 13

Efficiencies of well and through-well detectors to gamma-rays 井和通井探测器对伽马射线的效率

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91353-X

F. Acanfora, R. De Leo, A. Farilla, A. Raino'

引用次数: 0

Dosimetry with HgI2 HgI2剂量测定

Nuclear Instruments and Methods in Physics Research Pub Date : 1984-08-01 DOI: 10.1016/0167-5087(84)91355-3

C. Manfredotti

引用次数: 2