TRANSISTORIZED RADIATION MONITORING EQUIPMENT
J J Henry · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1960
A hermetically sealed all-transistor radiation monitor was developed to attain optimum accuracy and dependability in industrial applications. This equipment compares favorably with the better vacuum tube equipment. A cascade circuit linear amplifier, a linear base line pulseheight discriminator, and a pulse-width-modulated diodeswitched constant-current rate mater circuit are employed. These circuits provide good linearity, stability, pairedpulse resolution of < 2 - sec, and no discernible zero drift. The circuits are designed for low power consumption and are hermetically sealed in a small corrosion-resistant case. Modular plug-in construction is used to aid maintenance. (auth)