Fan-less long range alpha detector
Far infrared photoconductor array
Fast atomic line filter
Fast charge digitizer and digital data acquisition system for me
Fiber-type dosimeter with improved illuminator
Fire detector having means for heating the support member of an
Fire detectors utilizing an ionization chamber not subject to co
Fire identification and discrimination method and apparatus
Flow contoured electron capture detector cell
Focused multielement detector for x-ray exposure control
Frequency-programmed electron-capture detector