Journal of the Spectroscopical Society of Japan
Online ISSN : 1884-6785
Print ISSN : 0038-7002
ISSN-L : 0038-7002
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Volume 12, Issue 5
Displaying 1-4 of 4 articles from this issue
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  • Spectro-Isotopic Analysis
    Tokunosuke NAKAZIMA, Masao TAKAHASHI
    1964 Volume 12 Issue 5 Pages 181-191
    Published: May 30, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.181
    JOURNAL FREE ACCESS
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  • Radiation Trapping in He-Ne Gas Laser
    Norihito SUZUKI
    1964 Volume 12 Issue 5 Pages 192-196
    Published: May 30, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.192
    JOURNAL FREE ACCESS
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    In the He-Ne gas laser operation, the radiation trapping by Ne atoms in a metastable state is found to reduce the laser action;in the metastable state 1S5, the trapping is confirmed to vary with the wall temperature of the laser discharge tube.A relation obtained between the intensity of spectral lines related to the laser transition and the wall temperature tells that the laser output becomes.maximum at 150-200°C of the tube wall temperature.
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  • Atomic Absorption Spectrophotometer
    Masao TAKAHASHI
    1964 Volume 12 Issue 5 Pages 197-200
    Published: May 30, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.197
    JOURNAL FREE ACCESS
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    The construction of a single-beam atomic absorption spectrophotometer is described.A hollowcathode tube is operated by a stabilized d.c.power supply.The emitted radiation, after being chopped at 75 c/s, is passes through the atomic vapour in flame and falls on a monochromator.The output from the photomultiplier is led to a narrow band amplifier with “Twin-T net work.” The amplified signal is rectified and displayed on a recorder.By this procedure, only the signal due to radiation from the source is amplified without the effect of radiation orginated in the flame.
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  • Flame Analysis of Silver in KCl
    Atsuo FUKUDA, Kaichi INOHARA, Ryumyo ONAKA
    1964 Volume 12 Issue 5 Pages 201-204
    Published: May 30, 1964
    Released on J-STAGE: June 28, 2010
    DOIhttps://doi.org/10.5111/bunkou.12.201
    JOURNAL FREE ACCESS
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    To determine the oscillator strength of some induced absorption bands by doping silver in KC1, the amount of silver contained in a crystalline sample is determined by means of the flame spectrochemical analysis.The facts that the absolute amount of silver contained in a sample is as small as of the order of magnitude of microgram and that the amount of the matrix material is about 104 times larger than that of silver make it difficult to perform a chemical analysis.The flame analysis is, however, successfully carried out within an error of a fraction of p.p.m.
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