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CLINICAL CONSIDERATIONS

JULIUS E. GINSBERG, M.D.; ROBERT S. LANDAUER, Ph.D.

Arch Derm Syphilol. 1939;40(1):53-58.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

During the past several years there has been an increasing use of small unrectified x-ray machines by dermatologists. This type of equipment has been used over a period sufficiently long to permit evaluation, and we feel that a critique would be of value to dermatologists contemplating purchasing new machines in the near future.

The several types of x-ray apparatus available for treatment may be classified in the following groups: full wave rectified, either mechanically or by means of four valve tubes; half wave suppressed by means of one or two valves, and half wave suppressed (so-called unrectified) by means of the x-ray tube itself. An understanding of what rectification is and why it is employed is necessary to an intelligent understanding of the problem. There is still a rather widespread impression among both radiologists and dermatologists that a machine with an unrectified circuit is unsuitable for treatment. This impression is . . . [Full Text PDF of this Article]

Author Affiliations
CHICAGO; HIGHLAND PARK, ILL.

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