On the Velocity of the Cathode Particles Emitted by Various Metals under the Influence of Rontgen Rays, and Its Bearing on the Theory of Atomic Disintegration . Fig. 4. Jj IGr* O. Within the upper part of the apparatus was inserted the photographicplate-holder K (fig. 3). The holder was of brass, and fitted exactly, so as toslide smoothly up and down. It could be fixed at any required distanceabove the slits by means of a thin brass rod P passing through a hole in thetop of the holder. This rod had small holes bored in it at intervals of1 cm., so that a thin brass pin could be inserted in any
On the Velocity of the Cathode Particles Emitted by Various Metals under the Influence of Rontgen Rays, and Its Bearing on the Theory of Atomic Disintegration . Fig. 4. Jj IGr* O. Within the upper part of the apparatus was inserted the photographicplate-holder K (fig. 3). The holder was of brass, and fitted exactly, so as toslide smoothly up and down. It could be fixed at any required distanceabove the slits by means of a thin brass rod P passing through a hole in thetop of the holder. This rod had small holes bored in it at intervals of1 cm., so that a thin brass pin could be inserted in any hole, and on this pinthe top of the holder rested. Thus the plate could be fixed at any requireddistance above the slit. The strip L of photographic plate inserted wasof ^-plate length and 1*9 cm. broad. This size was chosen to avoid exertingpressure on the plates while cutting them into very small parts, it havingbeen found from previous experience that such pressure tended to fog sensitiveplates considerably. Two thick smoothly planed brass plates 1 cm. thick were taken, and oneof them soldered to the top of the apparatus. Holes were bored in theseplat
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectproceedingsoftheroya
