||Development and Evaluation of an Automatic Collimator for Medical Diagnostic X-Ray Machines.
Walchl, Ray L. ;
Stewar, Harold F. ;
More, Joseph M. ;
||National Center for Radiological Health, Rockville, Md. Medical and Occupational Radiation Program.
( X-ray photography ;
Diagnostic agents ;
X rays ;
Safety devices ;
Medical technicians ;
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A prototype automatic collimator for diagnostic X-ray machines was developed by the X-ray Exposure Control Laboratory. A second prototype was developed at XECL and installed in the Clinical Center of the National Institutes of Health for clinical evaluation. Subsequent use of this device has demonstrated technician acceptance. Modifications, based upon the X-ray technicians' evaluations, were made in the automatic collimator installed at the NIH. (Author)