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IEEE Transactions on Nuclear Science

Issue 1  Part I and II • Feb. 1970

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Displaying Results 1 - 25 of 99
  • [Front cover]

    Publication Year: 1970, Page(s): c1
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    Freely Available from IEEE
  • IEEE Nuclear Science Group

    Publication Year: 1970, Page(s): c2
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  • Table of contents

    Publication Year: 1970, Page(s):i - v
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  • Nuclear Science Symposium

    Publication Year: 1970, Page(s):vi - viii
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  • Session Chairmen

    Publication Year: 1970, Page(s):ix - x
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  • The Nucleus

    Publication Year: 1970, Page(s): xi
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  • Addendum

    Publication Year: 1970, Page(s): xi-a
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  • Low Dose Radiation and Cancer

    Publication Year: 1970, Page(s):1 - 9
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1617 KB)

    Contrary to a widespread notion that only leukemia plus certain rare cancers are radiation-induced in man, the evidence now points strongly to the induction of all forms of human cancer plus leukemia by ionizing radiation. These data amply justify the following three general laws of radiation-induction of cancer in man. View full abstract»

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  • Fast Breeder Reactors Status and Prospects

    Publication Year: 1970, Page(s):10 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (681 KB)

    First Page of the Article
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  • Infrared Evaluation Techniques for Ge(Li) Detectors

    Publication Year: 1970, Page(s):16 - 23
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1336 KB)

    The types of Ge(Li) detector spectrum degradation due to "trapping effects" are first considered, and a model is presented which explains this degradation in terms of specific phenomena. Then two detector evaluation techniques which utilize infrared light for studying these phenomena are outlined and the significant results obtained using these techniques are presented. The infrared absorption mea... View full abstract»

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  • Characteristics and Window Thicknesses of Ion Implanted Semiconductor Detectors

    Publication Year: 1970, Page(s):24 - 32
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1141 KB)

    A study of the main characteristics of boron ion implanted N-type silicon detectors is presented : a FWHM of 3.1 keV has been obtained at 77¿¿K for 1 MeV conversion electrons. Special emphasis is given to the window thickness of these counters, which is deduced from the pulse height defect observed for low energy protons as compared to ¿¿-rays of the same energy. The variation of the window thickn... View full abstract»

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  • The Planar Pair Geometry for Ge(Li) Detectors

    Publication Year: 1970, Page(s):33 - 38
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    Some of the more desirable features of large volume coaxial and smaller volume planar detectors are combined in a planar pair configuration of planar lithium drifted germanium diodes. The present work examines some of the more important considerations involved and presents data obtained using a 27 cm3 planar pair with energy resolution of 3.0 keV FWHM at 1.33 MeV. View full abstract»

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  • Variation of the Effective Fano Factor in a Ge(Li) Detector

    Publication Year: 1970, Page(s):39 - 43
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Variations in the value of the effective Fano factor, F, have been observed in Ge(Li) detectors using a collimated beam of ??-rays to irradiate selected areas in the sensitive region between the n+-and p-contacts. For regions near the n+-contact where the trapping of electrons is minimized, F was found to be statistically less than 0.11. View full abstract»

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  • Characteristics of a Funnel Type Electron Channel Multiplier with a Grid Entrance Window

    Publication Year: 1970, Page(s):44 - 48
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (598 KB)

    The response uniformity across the entrance window of a 1 cm diam funnel electron channel multiplier has been increased by installing a high transparency grid in front of the multiplier and operating at the same potential. The funnel surface was scanned by a 1/8 diam 1-20 keV hydrogen atom beam. With either a negative potential applied to the front edge or positive potential to the collector, the ... View full abstract»

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  • X-Ray Image Intensifier Tubes Using Rare Earth Oxysulfide Phosphors

    Publication Year: 1970, Page(s):49 - 56
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1751 KB)

    Inproved utilization of incident x-ray quanta in medical x-ray image intensifier tubes will allow operation at reduced x-ray dose levels and/or yield pictures with higher signal-to-noise ratio. This paper describes the characteristics and performances of experimental screens and image intensifier tubes using La2O2S(Tb) and Gd2O2S(Tb) phosphors. Inproved quantum utilization by a factor of 2 to 3 is... View full abstract»

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  • Rare Earth Oxysulfide X-Ray Phosphors

    Publication Year: 1970, Page(s):57 - 60
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    Two rare earth materials, La2O2S:Tb and Gd2O2S:Tb, have significant potential as inputscreen phosphors for x-ray image intensifier use. These materials exhibit high luminescent efficiencies and high x-ray absorption. In this paper we present a detailed discussion of the properties of these new phosphors and suggestions for further improving their performance in image intensifier tubes. View full abstract»

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  • Double-Drift Thin-Window Planar Ge(Li) Detectors

    Publication Year: 1970, Page(s):61 - 64
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (970 KB)

    An improved method for fabricating a thin-window planar detector was developed at Lawrence Radiation Laboratory, Livermore. This detector is designed to analyze spectra of low-energy as well as high-energy gamma and x rays. The detector has a planar configuration with a relatively large gold surface barrier entry window. The main advantage of this detector is its faster drifting time coupled with ... View full abstract»

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  • Applications of Cadmium Telluride Nuclear Radiation Detectors

    Publication Year: 1970, Page(s): 65
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    First Page of the Article
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  • Radial Resistivity Profile in High-Purity Silicon

    Publication Year: 1970, Page(s):66 - 71
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (885 KB)

    The radial profile of ionized impurities concentration was determined in different high purity silicon wafers, used for manufacturing solid state detectors. The measurement was carried on by determining as a function of radial position the depletion voltages of surface barrier dE/dx detectors made on the samples under study and whose circular useful surfaces were concentric with the wafers. The ra... View full abstract»

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  • Long-Term Stability Characteristics of Commonly Used Channel Electron Multipliers

    Publication Year: 1970, Page(s):72 - 80
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1261 KB)

    The gains of seven units of a commonly used channel electron multiplier model have been observed as a function of total accumulated counts in a clean, ion-pumped vacuum station at 3 ?? 10-10 Torr. After decreasing by a factor of two to three during the first 5 ?? 107 counts of operation, all gains remained relatively constant until the channel multipliers had each accumulated about 1010 counts at ... View full abstract»

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  • Approximate Methods for Calculation of Intrinsic Total-Absorption-and Double-Escape-Peak Efficiencies for Ge(Li) Detectors

    Publication Year: 1970, Page(s):81 - 90
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1351 KB)

    Approximate methods are presented for calculation of intrinsic total-absorption-and double-escape-peak efficiencies of Ge(Li) detectors. These methods utilize "average" characteristics of gamma-ray photon interactions with matter, and, while developed in this paper for specific application to the Ge(Li) detector efficiency problem, should be applicable to any gamma-ray detector or absorptive mediu... View full abstract»

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  • A High-Sensitivity Particle Spectrometer for the Measurement of Polar-Cap-Absorption Events

    Publication Year: 1970, Page(s):91 - 96
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1648 KB)

    A hybrid particle spectrometer possessing high-sensitivity and high-time resolution for the measurement of precipitating protons, electrons, and alpha particles during Polar-Cap-Absorption (PCA) events has been successfully operating in space aboard the OV1-18 satellite since 23 March 1969. Detection of protons in the energy range 1.2 to 46 MeV and integral above 70 MeV, electrons in the range 0.4... View full abstract»

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  • Large Area Beryllium Proportional Counters

    Publication Year: 1970, Page(s):97 - 101
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1529 KB)

    Proportional counters have been developed for use in satellite X-ray astronomy experiments. The counters are all beryllium with 2.5 mil (63.5 micron) windows, using epoxy seals. They are shown to have excellent long-term stability and resistance to environmental stress, except for 100% humidity. View full abstract»

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  • A Low-Power Memory System for Pulse-Height-Analyzer Systems

    Publication Year: 1970, Page(s):102 - 109
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    This paper describes the design techniques used in producing two magnetic-core memories for space-flight applications. The design stresses low power, dense packaging and wide operating temperature range. Data showing secure operation for temperatures between -50?? C and +80??C are presented. Typical power consumption exclusive of programming logic for a 1024 ?? 8-bit core array is 57 mW plus 9.8 ?... View full abstract»

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  • In-Flight Calibration Systems for Particle Detector Experiments

    Publication Year: 1970, Page(s):110 - 116
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1084 KB)

    This paper briefly reviews some in-flight calibration systems used on satellite particle detector experiments and gives a detailed description of the technique used to calibrate the IMP-I Solar Proton Monitoring Experiment (SPME). A short discussion of each calibration technique is presented in an attempt to inform the reader of the potential uses of in-flight calibration systems. The SPME in-flig... View full abstract»

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Aims & Scope

IEEE Transactions on Nuclear Science focuses on all aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.

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