Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
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Volume 28, Issue 5
Displaying 1-14 of 14 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1973 Volume 28 Issue 5 Pages Cover13-
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368515
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    1973 Volume 28 Issue 5 Pages Cover14-
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368516
    JOURNAL FREE ACCESS
    Download PDF (693K)
  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages App5-
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368517
    JOURNAL FREE ACCESS
    Download PDF (613K)
  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages 418-435
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368518
    JOURNAL FREE ACCESS
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  • REDUCTION OF EXPOSURE DOSE IN DENTAL ROENTGENOGRAPHY
    YOSICHIKA NAITO, YOICHI WATANABE, KEIICHI HASEGAWA
    Article type: Article
    1973 Volume 28 Issue 5 Pages 436-441
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368519
    JOURNAL FREE ACCESS
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    As ICRP Publication 16 recommends, the roentgenography should be carried out in exposure to the patient as low as practical. With this respect, in order to reduce the patient dose, dental roentgenography with the intensifying screen was tried. With preliminary experiment it was concluded that the existing screens would be useless for dental roentgenography, because of its great lack of sharpness in image. New intensifying screen (Kyokko BF) which was manufactured with trial by Dainippon Toryo Co., Ltd. would substitute as the non-screen film dental roentgenography when the sharpness of the image is not stirictly required. When BF screen is applied to dental roentgenography exposure is about 80% less as compared with that in the case of non-screen dental roentgenography. The authors acknowledge Professor Dr, Toru Oka, Department of Oral Surgery, Nagoya University school of Medicine, for his kind advice to this research work.
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  • THE 8TH REPORT OF THE RESERCH FOR X-RAY CHEST PHOTOGRAPHY : A PHOTO-TIMER FOR 3 PHASE 12 PULSE EQUIPMENT
    SEN-ICHI TAKEYOSHI
    Article type: Article
    1973 Volume 28 Issue 5 Pages 442-447
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368520
    JOURNAL FREE ACCESS
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    The history of a photo-timer is not so old, in Japan, they began to produce it since 1951,already it has passed 20 years more. The utility photo-timer is limited-furnished on the condencer charged equipments mostly, then recent years, a prectical uses of the photo-timer-furnished transformer equipments are becoming widespread gradually. Although, a saving of the exposing time is the most important problem on a chest photography, capacity of existing timer is not suitable for the photography. Because the case of a long time exposing, theree has not been so many troubles, but moving to a short time exposing, the density irregular should be more increased. Consequently, exception of foreign made IONTMAT, it is the present condition that most of the 3 phase X-ray exposing equipments do not furnish the X-ray value control system on itself. Therefore the reports and references of this system have been very few. So, in our dopartment, we experienced and tried to assemble the photo-timer for chest photography using TRIAC to glade up its accuracy, which is furnished on the equipment made by Siemens GMBH, Germany. Then we were able to obtain sufficient result, and this is our report of the experimentation.
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  • THE NEW GONAD PROTECTOR FOR INFANTS
    KAZUHIDE YAMASHITA
    Article type: Article
    1973 Volume 28 Issue 5 Pages 448-452
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368521
    JOURNAL FREE ACCESS
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    In view of the genetically significant dose of the nation, the reduction of gonad dose has now come most serious problem. It is, however, urgent require for every medical facilities to carry out a sufficient and positive x-ray control to solve this problem. Accordingly, the writer has deviced the following three methods to respond the demand, hereby make a report on the result of obtaining better radiography by overcoming the difficulties of taking the hip joints of infants experienced during past years. 1. The measuring equipment for pubic bones of infants is deviced, which exactly fit to the individual pelvic cavity of the patients, capable for gonad protection accurately and to measure most simply without interferring diagnotical purpose. 2. To possible the above purpose, a special protector is deviced by clayish compound made of mainly sulfate barium. 3. A stabilized x-ray table is made for trial.
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  • ON THE OPTIMUM SCINTIPHOTOGRAPHIC DENSITY IN VARIOUS ORGANS
    SHUN-ICHI TANOUE, TOSHIKO YASUDOME
    Article type: Article
    1973 Volume 28 Issue 5 Pages 453-457
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368522
    JOURNAL FREE ACCESS
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    The authors studied the optimum density of scintiphotogram for the various organs. The results are following. 1) Density-factor, dot-factor and scanning-speed of the scintillation scanners is changed by the density of scintiphotogram exceedingly. So, we must be understood the changeness of density and must not be too much swayed by the settled idea. 2) The optimum density of scintiphotogram is about 1.0. 3) Clinically, it is doubtfull that we apply to the ratio of the density of scintiphotogram without careful thought. But it will be usefull to conclude with following expression. (ratio of the density of scintiphotogram : [numerical formula])
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    Article type: Article
    1973 Volume 28 Issue 5 Pages 458-463
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368523
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  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages 464-
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368524
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages 465-470
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368525
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages 472-473
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368526
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Appendix
    1973 Volume 28 Issue 5 Pages 474-475
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368527
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    Article type: Cover
    1973 Volume 28 Issue 5 Pages Cover15-
    Published: March 31, 1973
    Released on J-STAGE: June 25, 2017
    DOIhttps://doi.org/10.6009/jjrt.KJ00001368528
    JOURNAL FREE ACCESS
    Download PDF (293K)
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