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IEEE Transactions on Nuclear Science

Issue 5 • Date Nov. 1964

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

    Publication Year: 1964, Page(s): c1
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  • IEEE Nuclear Science Group

    Publication Year: 1964, Page(s): c2
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  • Table of contents

    Publication Year: 1964, Page(s): i
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  • Introduction

    Publication Year: 1964, Page(s): ii
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  • The Nucleus

    Publication Year: 1964, Page(s):iii - iv
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  • Photoconductivity in Organic Molecular Crystals

    Publication Year: 1964, Page(s):1 - 11
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1267 KB)

    The present status of research on photoconductivity in organic molecular crystals is reviewed. The two main problems in the field, carrier generation and carrier transport, are discussed. The intent is to discuss those aspects of the problem which might be pertinent to photoconductivity induced by high energy radiation in polymers. View full abstract»

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  • Transient Radiation Effects in Transistors

    Publication Year: 1964, Page(s):12 - 23
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1258 KB)

    The measurement, analysis and theory of primary photocurrent in transistors are discussed. Techniques for calculating or predicting primary photocurrent from pre-irradiation measurements are developed. For transistors driven into saturation by high-intensity pulses of gamma radiation, a radiation storage time is defined. A method for predicting radiation storage time entirely from non-radiation pa... View full abstract»

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  • The Transient Response of Transistors and Diodes to Ionizing Radiation

    Publication Year: 1964, Page(s):24 - 38
    Cited by:  Papers (97)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1687 KB)

    Mathematical models describing the response of diodes and transistors to ionizing radiation are derived from the continuity and diffusion equations and, in the case of the transistor, the charge control model. Solutions are obtained for both steady-state and transient radiation environments. In addition to being of use in understanding device behavior, these solutions also indicate those device pa... View full abstract»

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  • Design Tradeoffs for a Neutron Radiation-Tolerant Silicon Transistor

    Publication Year: 1964, Page(s):39 - 46
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1041 KB)

    A detailed study was conducted of the tradeoffs involved in the design of silicon planar transistors tolerant to fast-neutron irradiation up to 1 ?? 1015 nvt. Initial measurements made on irradiated 2N918 transistors indicated that breakdown voltage and collector current range must be sacrificed in order to improve device radiation resistance. The tradeoffs relating post-irradiation hFE to transis... View full abstract»

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  • Neutron-Induced Damage to Silicon Rectifiers

    Publication Year: 1964, Page(s):47 - 54
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    As transistors become more radiation tolerant, renewed importance must be attached to the degradation of diode performance in a radiation environment. The dominant effect in most rectifiers is the increase in series resistance due to the removal of majority carriers from the conduction process in the base material. The initial conductivity of the base material and recent experimental data on carri... View full abstract»

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  • An Analysis of Steady-State Nuclear Radiation Damage of Tunnel Diodes

    Publication Year: 1964, Page(s):55 - 59
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1392 KB)

    Eighteen 2.2-ma and four 10-ma P-substrate (N-on-P), and eighteen 2.2-ma and four 10-ma N-substrate (P-on-N) substrate tunnel diodes were irradiated to 1.5 ?? 1016 n/cm2 (E > 0.3 Mev) and 2.2 1010 ergs/gm-(C) to investigate their radiation-resistance. Peak currents were found to remain constant under these exposures while valley currents increased due to the increase in excess current. P-substrate... View full abstract»

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  • Radiation Damage to Solar Cells on Relay I and Relay II

    Publication Year: 1964, Page(s):60 - 68
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1027 KB)

    The short circuit currents from 1 ohm-cm silicon N/P, silicon P/N, and gallium arsenide solar cells, bearing shields up to 60 mils thick, and carried aboard the Relay I and Relay II satellites were monitored. The currents from all cells decreased because of damage by the trapped particles in the Van Allen radiation belts, The currents from unshielded cells fell to about half initial values in one ... View full abstract»

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  • A Neutron Irradiation Test of Germanium Bicrystals

    Publication Year: 1964, Page(s):69 - 76
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1744 KB)

    A neutron radiation test was performed on 12 germanium bicrystals of four different resistivities, to screen their radiation tolerance. Optical performance of four bicrystals was recorded intermittently during the test using a pulsed radiation-tolerant light source included in the test package. VI diode characteristics were also taken periodically throughout the test. The results obtained showed t... View full abstract»

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  • Evaluation of Hall Effect Multipliers in a Radiation Environment

    Publication Year: 1964, Page(s):77 - 81
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1347 KB)

    Indium Arsenide (InAs) and Indium Antimonide (InSb) Hall effect devices were tested in gamma and neutron radiation to determine if they were suitable for use in the radiation environment experienced in a typical SNAP system. Total exposures of 5 ?? 107 R (Co-60 gammas) and 1015 nvt (E > 0.1 Mev) were accumulated on one group of devices. Effects of gamma radiation were negligible; however, neutrons... View full abstract»

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  • Simulation and Verification of Transient Nuclear Radiation Effects on Semiconductor Electronics

    Publication Year: 1964, Page(s):82 - 104
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4653 KB)

    This paper demonstrates a technique of modeling semiconductor devices with a comrpatible circuit analysis program using an IBM 7094 digital computer and an S - C - 4020 for CRT display. The models and program contain means of simulating the effect of an ionizing radiation environment. Both modeling and programming are facilitated by the use of a general-purpose compiler and solver termed TRAC (Tra... View full abstract»

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  • A New Magnetic-Field Electron-Irradiation Treatment for Producing Low-Coersive-Force Rectangular Hysteresis Loops in Supermalloy

    Publication Year: 1964, Page(s):105 - 110
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (842 KB)

    True magnetic-annealing effects, i. e., hysteresis loops with high remanence and rectangularity, with no increase in coercive force, can be induced in flat ring samples of bulk .015 cm thick polycrystalline Supermalloy at low temperatures by a new electron-radiomagnetic treatment. This treatment is possible because radiation produces vacancies in excess of the thermal equilibrium number, and this ... View full abstract»

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  • Radiation Induced Electrical Transients in Strain Gage and Temperature Transducer Circuits in a Pulsed Reactor Environment

    Publication Year: 1964, Page(s):111 - 122
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1268 KB)

    Radiation induced electrical transients in strain gage, nickel temperature sensor, silicon temperature sensor, and thermocouple circuits have been studied in the Kukla Prompt Critical Pulsed Reactor environment. Induced signals, which could obscure real data, were observed in many strain gage circuits. It was determined that the observed signals were the result of a voltage appearing between the s... View full abstract»

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  • Combined Environments versus Consecutive Exposures for Insulation Life Studies

    Publication Year: 1964, Page(s):123 - 129
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1693 KB)

    The service life of an insulating material which will be used in a nuclear radiation environment cannot be predicted by the usual thermal-aging methods; neither can it be predicted from experiments in which thermal aging follows a pre-exposure to radiation at room temperature. To have any reliable significance, the experiment must be conducted in a combined environment of both thermal and nuclear ... View full abstract»

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  • Dosimetry for Radiation Damage Studies

    Publication Year: 1964, Page(s):130 - 136
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (962 KB)

    A method is presented for reporting fastneutron exposure in a meaningful and unambiguous fashion. Four steps are required: determination of the shape of the neutron spectrum, fixing its absolute magnitude, choosing a reasonable energy weighting for the neutrons, and reporting the exposure in useful units. Alternative procedures are described for performing each of these steps. The exposure unit pr... View full abstract»

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  • Neutron and Gamma-Ray Rate Sensitivities of Several Dynamic Detectors Used in Radiation Effects

    Publication Year: 1964, Page(s):137 - 144
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1277 KB)

    The absolute rate-sensitivities of several burst sensors to neutrons and to gamma-rays in the mixed field of the Sandia pulsed reactor environment have been measured, using the shielding techniques of Coppage and Snyder(1) for variation of the neutron-to-gamma ray ratio over a factor of five to ten. The spectral changes effected by the shields are discussed. The sensors which were tested are: two ... View full abstract»

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  • Use of Ferroelectrics for Gamma-Ray Dosimetry

    Publication Year: 1964, Page(s):145 - 154
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1016 KB)

    A gamma-ray dosimeter employing a poled ferroelectric as the transducer element has been studied. Irradiation with gamma rays causes a release of charge by the ferroelectric element. The magnitude of the charge released has been determined experimentally to vary linearly with gamma-ray dose. The current in a shunting resistor with no external voltage applied varies linearly with gamma-ray dose rat... View full abstract»

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  • Cobalt Glass Dosimetry

    Publication Year: 1964, Page(s):155 - 163
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (751 KB)

    The fading of radiation-induced absorbancy of cobalt glass as a function of exposure rate and time was investigated. A linear accelerator (Linac) and a 600 curie cobalt-60 source were used. The fading of the absorbancy was found to obey an empirical relationship over four orders of magnitude of the form A(t) = A(to) - n In t/to where A(to) is the absorbancy at time to. The slopes of the fading cur... View full abstract»

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  • Transactions Awards

    Publication Year: 1964, Page(s): 164
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  • Particle Accelerator Conference

    Publication Year: 1964, Page(s):164 - 165
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  • Information for authors

    Publication Year: 1964, Page(s): 165a
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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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Editor-in-Chief
Paul Dressendorfer
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