Atec Victoreen-660 Series - Manual

Victoreen Model 660 Series
Parallel Plate Ion Chamber
For diagnostic beam measurements
For scatter radiation measurements
Compatible with 660 readout
Ambient Dose Equivalent versions available
INTRODUCTION
The 660 series probes feature a circuit concept which provides a noise free
transmission of data. The ion chamber current output is converted to a low
impedance digital pulse train in the probe handle, so that cable flexing has no
effect on the measurement. These probes are intended for use with the Model 660
instrument only, which supplies the operating voltages, senses individual probe
sensitivity, and converts the digital pulse frequency into units of radiation. Model
numbers 660-3, 660-4A, and 660-5 are read in Roentgens. Model numbers
660-3-DE, 660-4A-DE, and 660-5-DE are read in Sieverts and are dose equivalent
versions. They have typical energy dependence curves per ICRP recommendations
for ambient dose equivalent.