Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
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Volume 27, Issue 2
Displaying 151-158 of 158 articles from this issue
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  • THE SUBJECT OF IMPROVEMENT OF THE 90-SECOND PROCESSING SYSTEM : ESPECIALLY ON PACOROL XU & FUJI X-RAY PROCESSOR, RN
    OSAMU FUJIWARA, TADORU KOGA, SHONOSUKE HIDE
    Article type: Article
    1971 Volume 27 Issue 2 Pages 144-149
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103341
    JOURNAL FREE ACCESS
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    We sent questionaries to establishments using 90-second processing systems for automatic development and have obtained replies thereto from 43 establishments using Pacorol XU and 10 using Fuji X-ray processor, RN through their cooperation. Upon the data of such replies, we discussed the subjects of improvement mainly with respect to the maintenance and adjustment of the structure and used films, to find out several remarkable tendencies. This report has been prepared for the improvement of the 90-second processing system and its routine maintenance and adjustment upon such tendencies.
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  • MEASUREMENT OF SULFUR DIOXIDE EVOLVED DURING THE PROCESS OF DEVELOPMENT
    KOUICHI ENDO, MASATSUNA ISHIZAKA
    Article type: Article
    1971 Volume 27 Issue 2 Pages 150-153
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103342
    JOURNAL FREE ACCESS
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    In the process of development and handling of a film, the process of fixation is an indispensable one. Chemicals such as sodium thiosulfate, ammonium thiosulfate and sodium sulfite undergo chemical reaction with acid, giving rise to sulfur dioxide. Sulfur dioxide is quite harmful to human health, playing an important role in air pollution. Consequently, sufficient precaution should be taken on the problem of sulfur dioxide in a dark room where a great number of X-ray films are developed over a long time. We have therefore measured the amount of sulfur dioxide released from the fixing solution. Especially in a small dark room with poor ventilation, the concentration of sulfur dioxide in the room rises. The sulfur dioxide may irritate the nasal cavity, throat, and bronchia, leading to the chronic course of inflammation. Consequently, it has been concluded that the ventilator of the dark room with a good capacity should be placed in an efficient position in order to avoid the potential hazard to workers.
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  • ON THE CHAMBER DRIVING APPARATUS
    HIDEO NAKANO, NORIYOSHI UMESAKI, TAKATOSHI YUKU
    Article type: Article
    1971 Volume 27 Issue 2 Pages 154-157
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103343
    JOURNAL FREE ACCESS
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    In the radiation therapy used medical linear accelerator and Tele-cobalt, the measurement of percentage depth dose in the water phantom and dose distribution across beams are made conveniently by the moving ionization chamber. For these measurement, a simple apparatus for ionization chamber driving is planed. The apparatus is designed to move the ionization chamber vertically and holizontally to radiation beam and the moving distance is marked at every 1cm on the recorder. Moreover, being made simple construction, cheaper production cost and light weight of the apparatus, its making and handling are easy. It's practicality for daily work of the dose measurements was proved sufficiently by the two years using experience.
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  • SYSTEMATIC CLASSIFICATION OF THE TECHNIQUES IN MEDICAL X-RAY PHOTOGRAPHY
    HIROSHI TSUCHIYA
    Article type: Article
    1971 Volume 27 Issue 2 Pages 158-175
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103345
    JOURNAL FREE ACCESS
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    1) Since the techniques in X-ray photography are identified under various names, I have ascertained what varieties there are and compiled a synoptical table listing various names. 2) These names identifying various techniques in X-ray photography may or may not be descriptively appropriate. I have studied these names from the angle of their appropriateness and chosen those which can be preserved as part of the X-ray photographic terminology. I have also proposed that competent authorities should officially announce categories for X-ray photographic techniques. 3) The techniques in X-ray photography have thus been surveyed and studied in regard to its particular aims and methods. An attempt has been made to classify them systematically.
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  • [title in Japanese]
    Article type: Appendix
    1971 Volume 27 Issue 2 Pages 176-
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103346
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    1971 Volume 27 Issue 2 Pages 177-
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103347
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    1971 Volume 27 Issue 2 Pages 178-179
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103348
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    1971 Volume 27 Issue 2 Pages Cover6-
    Published: August 31, 1971
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00003103349
    JOURNAL FREE ACCESS
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