. A system of instruction in X-ray methods and medical uses of light, hot-air, vibration and high-frequency currents : a pictorial system of teaching by clinical instruction plates with explanatory text : a series of photographic clinics in standard uses of scientific therapeutic apparatus for surgical and medical practitioners : prepared especially for the post-graduate home study of surgeons, general physicians, dentists, dermatologists and specialists in the treatment of chronic diseases, and sanitarium practice . and thickness. 7. The law of inverse squares as not related to X-radiance. 8.
. A system of instruction in X-ray methods and medical uses of light, hot-air, vibration and high-frequency currents : a pictorial system of teaching by clinical instruction plates with explanatory text : a series of photographic clinics in standard uses of scientific therapeutic apparatus for surgical and medical practitioners : prepared especially for the post-graduate home study of surgeons, general physicians, dentists, dermatologists and specialists in the treatment of chronic diseases, and sanitarium practice . and thickness. 7. The law of inverse squares as not related to X-radiance. 8. The quality of any new or old fluoroscope of any make ormaterial. 9. The relation of photographic activity and fluoroscopic efficiencyto a given degree of X-radiance and to each other. To test the quality of a new fluoroscope or to detect possibledeterioration in an old screen, set up the gauge six inches from thetube. Then operate the tube with a small currrent, and only generateenough light to barely outline the ring of the window through twoshutters. If the radiance of the tube used is not easily reduced tothe exact point increase the distance between the tube and the gaugeuntil the shadow of the ring is at its faintest visible outline. Makethis test and all others requiring accuracy in an entirely darkenedroom. Keeping the tube and gauge in the same relation, compare nowthe definition of the window rim with each screen at hand, and it willplainly appear which fluoresces best. The percentage of difference.
Size: 1350px × 1851px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidsystemofinst, bookyear1902
