Accession Number : AD0712663


Title :   A RADIOFREQUENCY RADIATION EXPOSURE APPARATUS


Descriptive Note : Final rept. May 1969-Feb 1970


Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX


Personal Author(s) : Mitchell, John C


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/712663.pdf


Report Date : Jul 1970


Pagination or Media Count : 14


Abstract : A radiofrequency radiation exposure apparatus was developed and placed into operation at the USAF School of Aerospace Medicine. The rectangular coaxial device has dimensions of 4 3/4 ft. by 9 1/4 ft. by 30 ft., with a 6-ft.- wide center conductor. It is powered by a 50-kwp. transmitter and operates in a pulsed mode at frequencies of 10.5, 19.27, and 26.6 MHz. Up to 12 animals (Macaca mulatta) can be exposed simultaneously to uniform fields ranging in power density from 0.05 to 0.2 w./sq cm. The instrumentation system, consisting of portable E- and H-field probes and fixed E-field probes, was developed and calibrated by the National Bureau of Standards. Details of the system design, checkout, and operation are presented.


Descriptors :   *RADIATION MONITORS , EXPOSURE(PHYSIOLOGY) , INSTRUMENTATION , MICROWAVES , MONITORS , OPERATION , PROBES , RADIATION MEASURING INSTRUMENTS , RADIOBIOLOGY , RADIOFREQUENCY


Subject Categories : Radiobiology
      Structural Engineering and Building Technology


Distribution Statement : APPROVED FOR PUBLIC RELEASE