Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental P1 Probe reel mounted portable systems allow

reel mounted portable systems allow access to multiple monitoring wells

The legs can be easily set from 45 cm to 70 cm (17

aided by the durable sharpness of the ceramic blade

• Password protection that limits individual user access

or call 3M OH&ESD Technical Service in USA at 1-800-243-4630 and in Canada at 1-800-267-4414

Ludlum Model 2221 w/ 44-10 2x2 Nal Probe Rental P1 Probe reel mounted portable systems allowIndicated Use Low level, wide energy gamma detection Detector Type NaI(Tl) scintillator, 5. 1 cm (2 in.) dia. x 5. 1 cm (2 in.) thick Efficiency (4) 125I: 4% 57Co: 20% 137Cs: 9% 60Co: 15% Typical Sensitivity (137Cs gamma) 900 cpm per R hr Recommended Energy Range 30 keV to 3. 0 MeV Energy Response Energy dependent (see Energy Response Curve) Typical Background (10 R hr field) 9750 cpm Photomultiplier Tube 5. 1 cm (2 in.) diameter Operating Voltage 500