File:Radiography, x-ray therapeutics and radium therapy (1915) (14754520491).jpg

Identifier: radiographyxrayt00knoxuoft (find matches)
Title: Radiography, x-ray therapeutics and radium therapy
Year: 1915 (1910s)
Authors: Knox, Robert, 1868-1928
Subjects: Radiography Radiotherapy X-rays
Publisher: London : A. & C. Black
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: MSN

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be the dutyof those responsible for the X-ray department to see that efficient pro-tection is provided. The X-ray tube should be completely enclosed in a lead-lined box, ora lead-glass shield of sufficient size should be provided, so that no strayX-rays are allowed to fall outside the area it is desired to treat. Glovesshould be used whenever the operator comes AA-ithin the range of the rays.A large lead-lined screen should be placed between the active tube and theworker. This should have a lead-glass ^vindow for purposes of observa-^tion on patient and tube. The control apparatus should be kept at aconsiderable distance from the tube stand so that the operator need notcome near the active ray. Protection of the patient must be carefully attended to, especially whenadministering the heavy doses of more recent days. Thick lead-rubbershields should cover the parts of the body in close proximity to the tube box.A window is cut in the middle of the lead rubber to allow of the rays passing
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ARKANGEMENT OF APPARATUS 267 to the part under treatment. Tlie efficiency of the protective measuresemployed may be tested by means of an electroscope. This, when placedin the \acinity of an active X-ray tube, quickly becomes discharged, thusenabling the ionisation effect to be estimated. All protective devicesshould be tested in this manner before it is assumed that thev are efficient. Arrangement of Apparatus In the early days it was sufficient to have a coil, control apparatus, anda tube, the dose being calculated in minutes, in many instances quite irre-spective of the condition of the tube. Even with this crude technique resultswere obtained which served to call attention to the great potentiality behindthe new remedy. Increasing complexity of apparatus accompanied eachsucceeding development, so that the equipment for an X-ray therapeuticdepartment has now become exceedingly comphcated. The control of the X-ray tube is a matter of ease when precautions aretaken and sufficient aux

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