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  • 1
    Digitale Medien
    Digitale Medien
    Conductivity induced in Mica by X-Rays (1955)
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 648-648 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The experiments on mica were made with sheets 0-15 mm. thick, using the d.c. amplifier technique which we have previously described1. Mica shows relatively low values of induced conductivity, of the same order as those in polymethyl methacrylate and amber. The conductivity in mica is not greatly ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/175648a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Effect of Temperature on the Conductivity induced in Insulators by X-Rays (1953)
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 1020-1021 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] These difficulties were overcome in the present tests by using a length of 6 metres of polythene-insulated cable coiled into a flat spiral and connecting the end of the cable, outside the room, to a source of voltage and a d.c. amplifier. The coil was enclosed in a 'Perspex' box through which ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1711020a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Conductivity induced in Unplasticized ‘Perspex’ by X-rays (1955)
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 516-517 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The range of dose-rates was 2-64 r./min., and the range of temperature 20 -80 C. for plasticized,and 20 -100 C. for unplasticized 'Perspex'. The measurements were made, as previously described1, using a d.c. amplifier to measure the current in a specimen placed in a chamber which could be ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/175516a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Conductivity induced in Polystyrene by X-Rays (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 800-801 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] These experiments have confirmed the long time-constant, which is comparable with those observed in polythene3 and polytetrafluorethylene4. The magnitude of the induced current, however, is smaller than in the two latter materials, being in fact of the same order as that in 'Perspex' or some types ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/174800a0
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  • 5
    Digitale Medien
    Digitale Medien
    Conductivity induced in Polytetrafluoroethylene by X-rays (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 136-137 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Dose-rate dependence. The equilibrium induced current i is related to the dose-rate R by the general relationship : % oc .,where A is a characteristic of the material. For polytetrafluoroethylene over the range R = 2 to 65 r./min., and between 20 and 110 C, we find A = 0-63 ± 0-08, with ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/174136b0
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Conductivity induced in Insulating Materials by X-Rays (1954)
    [s.l.] : Nature Publishing Group
    Nature 173 (1954), S. 317-318 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The equilibrium induced current i in polythene is found to be related to the dose-rate R by the relation- Ship: i OC #0-8?0-05 (!) over the range R = 0-05-20 r./min. and between 20? and 80? C. This is in agreement with the work of May burg and Lawrence5, who have reported the exponent in the ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/173317a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Frequency of Collision of Electrons in the Ionosphere (1935)
    [s.l.] : Nature Publishing Group
    Nature 135 (1935), S. 585-585 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] WE were much interested in a recent communication1 in which Mr. T. L. Eckersley described the way in which he had measured the collisional frequency of electrons in the F1 region of the ionosphere by comparing the absorption coefficients and group retardations of ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/135585b0
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Conductivity Induced by X-Rays in Polyethylene Terephthalate: A Possible Insulator for Radiological Apparatus (1955)
    [s.l.] : Nature Publishing Group
    Nature 175 (1955), S. 590-591 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] TV MEASUREMENTS of the conductivity induced IVX by X-rays in 'Melinex' (polyethylene tere-phthalate sheet) have been made, using the d.c. amplifier technique previously described1'2. The specimens consisted of sheets of 'Melinex' film 0-03 mm. in thickness placed in a chamber that could be ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/175590a0
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  • 9
    Digitale Medien
    Digitale Medien
    A New Type of High-Voltage Machine (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 1065-1066 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] This can be achieved in the following way. A series of condensers is attached to or incorporated in an endless moving belt and it is so arranged that they become charged on passing a certain point (A, Fig. 1), but later become connected in series as they travel away (B). In this way, it should be ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1741065b0
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  • 10
    Digitale Medien
    Digitale Medien
    A New Test of the Magneto- Ionic Theory (1935)
    [s.l.] : Nature Publishing Group
    Nature 135 (1935), S. 831-832 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] ACCORDING to the magneto-ionic theory of Appleton1, we should expect a wireless wave incident on the ionosphere to be returned to the earth as two differently polarised components (the ordinary and the extraordinary) with a slight difference in the time of travel. For ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/135831b0
    Standort Signatur Erwartet Verfügbarkeit
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