. Radiotherapy and phototherapy : including radium and high-frequency currents, their medical and surgical applications in diagnosis and treatment ; for students and practitioners . Queen self-regulating tube in action. that palladium possesses the peculiar quality of absorbing960 times its own bulk of hydrogen at ordinary temperaturesand liberating it when heated. Self-regulating Tubes. The preceding type of tube hasbeen developed into an exceedingly ingenious self-regulating APPARATUS 71 tube, which has the facuky of hberating some of the gas inthe potash automaticaUy whenever the vacuum in
. Radiotherapy and phototherapy : including radium and high-frequency currents, their medical and surgical applications in diagnosis and treatment ; for students and practitioners . Queen self-regulating tube in action. that palladium possesses the peculiar quality of absorbing960 times its own bulk of hydrogen at ordinary temperaturesand liberating it when heated. Self-regulating Tubes. The preceding type of tube hasbeen developed into an exceedingly ingenious self-regulating APPARATUS 71 tube, which has the facuky of hberating some of the gas inthe potash automaticaUy whenever the vacuum in the maintube becomes higher than a certain previously set mark,and discontinuing the hberation of the gases as the vacuumassumes the normal. Of these tubes, the Queen self-regu-lating is a very. ^ good example, and as the principle in all Fig. Details of a Queen self-regulating tube. of them is the same, a description of one will answer for all(Figs. 16 and 17). The tube may have one or more anodes. It consists ofa tube of ordinary appearance, with which there communi-cates another smaller tube of somewhat peculiar construc-tion. This small tube is in turn surrounded by, but does not 72 GENERAL CONSIDERATIONS UPON RADIOLOGY communicate with, a small focus tube {D), and occupies theposition of the target. The cathode of the tube D is accu-rately focused on the tube X, and when it is excited thecathode stream will impinge on X and cause heating of thecontents, which may be caustic potash, as explained metal arm P is movable, so that its end may be madeto touch X, the negative attachment of the tube B, orseparated therefrom to any distance. A wire connects theanode terminal of the tube B with the anode terminal ofthe tube D. The positive terminal of the source of currentis connected with the wire, and is thus in elec
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyork, bookyear19
