File:The American journal of roentgenology, radium therapy and nuclear medicine (1906) (14734190166).jpg

Identifier: americanjournroen09ameruoft (find matches)
Title: The American journal of roentgenology, radium therapy and nuclear medicine
Year: 1906 (1900s)
Authors: American Radium Society American Roentgen Ray Society
Subjects: Radiotherapy X-rays
Publisher: Springfield, Ill. C.C. Thomas
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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Fig. 2. Lead-lined board to protect operator. radium emanation occupies the sameposition in the cone that a clapper does ina bell. At the base of the cone it is exposedand unfdtered, while in all other directionsit is filtered by the steel jacket. In order to lend further filtration for * Read at the Sixth Annual Meeting of The American Radicm Society, Boston, June 6-7, 1921. 53 54 New Type of Applicator for Radium Emanation certain cases another cone made of 2 mm.of brass with a 1 mm. brass cap to fit overthe base of the cone has been constructed(Fig. iC). While the distance afforded by the longmetal handle is considerable protectionto the operator, it is not sufficient for all radium for their treatment and a dangerousamount of exposure on the part of theoperator. Many of these are very superficial and acentimeter or less in diameter. In thetreatment of such lesions this bulb hasproved very valuable. It can be held in
Text Appearing After Image:
In.. 3. Treating skin lesion. practical purposes. To add to the safetythere has been constructed a screen linedby 6 mm. of lead, with a class window forobservation, and perforations at variouslevels to permit passage of the applicatorhandle (Fig. 2). The very large number of malignant skinlesions, usually basal cell epitheliomas,require the use of considerable filtered place readily for the short period necessary(Fig. 3). An exposure of two minutes with600 inc. of emanation is sufficient to clearup entirely a rodent ulcer 8 to 10 mm. indiameter. Since the radiation is from aBattened spherical surface, it is betteradapted to these small lesions than a tubeof radium which gives an oval field ofradiation. Being unliltered, both beta and New Type of Applicator for Radium Emanation 55 gamma radiation is utilized, resulting ina saving of radioactivity, and, since theradiation is softer, the reaction is not sodeep, and healing is much more prompt.We have found it advantageous toaccumulate th

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