Atec Victoreen-660 Series - Manual (Page 2)

APPLICATIONS
The 660 probes make use of ion chamber technology, ideal for use in standard
radiology, fluoroscopy, and mammography quality assurance programs where
inbeam
exposure and exposure rate measurements over a broad range of kVp energies
are required. The 660-5 Scatter Probe is designed primarily for Health Physics
exposure assessments of scattered radiation.
FEATURES
• Circular parallel plate ion chambers have assured atmospheric communication
• The 660 family of chambers also maintain precision within 1% short
term and 2% per year at 20°C exclusive of air density or energy response
• The 660 series converts the ion chamber current to a pulse train thereby
eliminating effects from flexing cables
• Ambient Dose Equivalent versions of these probes have energy response
curves per the ICRP recommendations
SPECIFICATIONS
Series Number
660-3
660-3-DE
660-4A
660-4A-DE
660-5
660-5-DE
Application
Diagnostic Beam
Measurement Diagnostic Beam
Measurement Scatter
Probe Volume
4cc
4cc
400 cc
Measurement Area 10 cm2 10 cm2
100 cm2
Maximum Rate
999 R/min 99.9 R/min 9.99 R/hr
Maximum Exposure
99.9 R 99.9 R 99.9 mR
Resolution on most
sensitive range
Rate
10 mR/min 1 mR/min 0.1 mR/hr
Resolution on most
sensitive range
Exposure 1 mR 0.1 mR 1 µR
Intensity Limit for
99% Collection
Efficiency
4 R/sec 1.8 R/sec 10.8 R/hr