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  • 1
    Digitale Medien
    Digitale Medien
    Ionization in Hydrogen by Fast Hydrogen Neutrals (1943)
    [s.l.] : Nature Publishing Group
    Nature 151 (1943), S. 137-138 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] RECENT work by Varney and his collaborators1,2,3, also earlier work by Beeck4, have shown that gases can be ionized by their own accelerated neutral molecules or atoms. A classical theoretical treatment of the problem was given by Zwicky5, who showed ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/151137b0
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  • 2
    Digitale Medien
    Digitale Medien
    Afterglow Effects in High-Pressure Gases (1945)
    [s.l.] : Nature Publishing Group
    Nature 156 (1945), S. 21-22 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WE have recently demonstrated1 the existence of afterglows following intense spark discharges in argon, hydrogen and other gases at pressures of 1–2 atmospheres. The submission of this further note, in advance of a more detailed publication2, is prompted by Lord ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/156021a0
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  • 3
    Digitale Medien
    Digitale Medien
    Measurement of Out-of-Phase Magnetic Fields in Betatrons (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 229-230 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] FIG. 1 gives a plot (Curve A) of the magnetic field at the orbit (19 cm. radius) of a 20-MeV. betatron for the first thirty minutes of arc of the quarter period during which the electrons are accelerated. The peak field is 3,600 gauss, reached at 90°, corresponding to 20 MeV. Fig. 1 also shows, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/159229a0
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  • 4
    Digitale Medien
    Digitale Medien
    Observation of Spectral Lines with Electron Multiplier Tubes (1946)
    [s.l.] : Nature Publishing Group
    Nature 158 (1946), S. 618-618 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] CONSIDERABLE interest has been shown within the last two or three years in technical developments relating to spectroscopic analysis. Since the advent of several new controlled sources1,2, including a circuit devised by Mr. C. J. Braudo, in this Laboratory and recently described ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/158618a0
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  • 5
    Digitale Medien
    Digitale Medien
    Initiation of Glow Discharges (1943)
    [s.l.] : Nature Publishing Group
    Nature 152 (1943), S. 386-387 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE form of the breakdown voltage/pressure curve for various gases in the pressure range 0–5 cm. mercury has been established by several investigators. The breakdown voltage usually measured is that at which a galvanometer in series with the experimental tube indicates a current of 0–1 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/152386b0
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  • 6
    Digitale Medien
    Digitale Medien
    Pre-Breakdown Discharges in D.C. Positive Point to Plane Corona (1951)
    [s.l.] : Nature Publishing Group
    Nature 168 (1951), S. 859-861 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] PREVIOUS workers1"4 have shown that D.C. positive point to plane corona in air and in other gases of moderate purity consists of several forms of discharge. These are, in order of appearance with increasing voltage, burst pulses and pre-onset streamers, burst corona and finally streamers the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/168859a0
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  • 7
    Digitale Medien
    Digitale Medien
    Electrical and Optical Characteristics of D.C. Corona Discharge (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 647-648 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The apparatus used included a conventional amplifier, having a rise time of 0*05 {xsec., and an oscilloscope9'10 using a 10,000-volt cathode-ray tube. The light pulses from pre-breakdown streamers in corona in air at atmospheric pressure are similar in shape but much longer (0-4 jjLsec. at 30 ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/167647b0
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  • 8
    Digitale Medien
    Digitale Medien
    Use of Radioactive Cobalt for Sphere Gap Irradiation (1949)
    [s.l.] : Nature Publishing Group
    Nature 164 (1949), S. 356-357 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN many cases where sphere gaps are used for voltage measurement, and particularly where the impressed voltage wave is a short impulse, it is important to provide adequate external irradiation, or the behaviour of the test gap may be erratic and the measurements accordingly inaccurate. If a ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/164356b0
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  • 9
    Digitale Medien
    Digitale Medien
    X-Radiation from a 20-Mev. Betatron (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 1022-1023 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IT is of interest and importance to know the energy distribution of the radiation emitted from betatrons and synchrotrons, since such knowledge is necessary in cases where cross-sections of nuclear reactions are to be determined1, and in estimating the clinical effect of such radiation. For some ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1611022a0
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  • 10
    Digitale Medien
    Digitale Medien
    Non-isothermal Plasmas in the Rare Gases (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 367-368 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Bayet2 suggests that effects due to metastable excited atoms may be ignored at sufficiently high pressures. Moreover, Biondi4 has shown that increased afterglow ionization due to metastable atom collision processes would tend to increase with increasing pulse-length (up to a limiting pulse-length, ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/174367b0
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