TABLE 4

Pitfalls in Use of a Survey Meter

Type of usePitfall
RoutineBattery power insufficient for measurement
Insufficient time allowed for reading to settle
Cable wires or thin end-window broken
Covering of thin end-window not removed for particulate radiation measurement
Unit contaminated with radioactivity
High radiation source causing dead time
Unit not close enough to source (e.g., for contamination survey)
Shielding material between source and detector
QCGeometric configuration for operational check not according to protocol
Not calibrated within regulatory time frame