. Elementary and dental radiography / by Howard Riley Raper . ^A CU O X-RAY TUBES AND THE X-RAYS 63 cone ( Fig. 6o), or a pedestal with a lead glass protection shield, compres-sion cone, and plate holder < Fig. 61), or a table with a lead glass, protec-tion shield and compression cylinder. (Fig- 62.) Dr. Blum, of New York, uses a wall bracket fixture to support alead glass, protection shield and compression cylinder. The tube, oneof the water-cooled type, is seen fitting into the lead glass OO w Fig. 64. A Protection Shield. (Fig. 63.) This would be, I imagine, a very adaptable and
. Elementary and dental radiography / by Howard Riley Raper . ^A CU O X-RAY TUBES AND THE X-RAYS 63 cone ( Fig. 6o), or a pedestal with a lead glass protection shield, compres-sion cone, and plate holder < Fig. 61), or a table with a lead glass, protec-tion shield and compression cylinder. (Fig- 62.) Dr. Blum, of New York, uses a wall bracket fixture to support alead glass, protection shield and compression cylinder. The tube, oneof the water-cooled type, is seen fitting into the lead glass OO w Fig. 64. A Protection Shield. (Fig. 63.) This would be, I imagine, a very adaptable and satisfactoryapparatus. A tube stand should be heavy enough to be firm and not allow anyvibration of the tube while in use. The parts coming in contact with thetube must be made of an electric non-conducting material; otherwise thecurrent would pass from the tube into them, so puncturing the tube. The uses of the compression cone or cylinder are : (1) To cut out sec-ondary and inverse current rays (Fig. 65). (2) To aid the operator indirecting the X-rays at the correct angle. (3) In general radiography, tohold the patient immovable and compress the soft parts as when makinga picture of the kidney, for example. A protection shield, often called a Friedlanders shield (Fig. 64),which is opaque to X-rays except for the window or opening in it, andwhich is used to cover X-ray tubes, also cuts out some, but not all, second-are rays given off from the glass of the tube. Thus if the X-rays from an 64 E
Size: 2268px × 1102px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookauthorraperhowardriley, bookcentury1900, bookdecade1910
