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Article
January 1943

SHOCK-PROOF ROENTGEN RAY APPARATUS IN DERMATOLOGY

Author Affiliations

NEW YORK

From the Skin and Cancer Unit of the New York Post-Graduate Medical School and Hospital.

Arch Derm Syphilol. 1943;47(1):43-57. doi:10.1001/archderm.1943.01500190046006
Abstract

Shock-proof x-ray apparatus have been used by dermatologists and radiologists for several years. Leading manufacturers in the United States now furnish only this type of apparatus. This indicates the obvious advantages of shock-proof x-ray machines. The purpose of this communication is twofold: first, to relate the differences in technic between use of shock-proof and that of nonprotected apparatus in treating diseases of the skin and, second, to describe the field of irradiation and the physical characteristics of the emitted x-ray beam of the newer machines. Shock-proof apparatus are safer than the older types; nevertheless, certain precautions are necessary for their safe use. No machine is foolproof.

DESCRIPTION OF APPARATUS  A shock-proof x-ray machine consists essentially of an autotransformer, a high tension transformer, a valve tube rectifier, a filament heating transformer and an appropriate panel board containing the meters, switches and regulating devices. These elements are contained in most x-ray apparatus.

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