LUDLUM 2363 Gamma-Neutron Survey Meter (0.1 mrem/hr ~ 1 rem/h; 0.1 mR/hr ~ 1 R/hr)

Indicated Use: Gamma and neutron survey

Detection Range: Model 42-41L PRESCILA Neutron Detector (External): 1 μSv/h to 10 mSv/h (0.1 mrem/hr to 1 rem/h)

Energy-Compensated Gamma GM Detector (Internal): 1 μSv/h to 10 mSv/h (0.1 mR/hr to 1 R/hr)

Sensitivity: Neutron (with Model 42-41L): 35 cpm/μSv/h (350 cpm/mrem/hr), gamma rejection up to 1 mSv/h (100 mR/hr)

Gamma (Internal Detector): 100 cpm/μSv/h (1000 cpm/mR/hr)

Neutron Energy Response: Thermal to 100 MeV

Linearity: Reading within 10% of true value with detector connected

Gamma Rejection (137Cs): Approximately 40 cpm at 1 mSv/h (400 cpm at 100 mR/hr)

Meter Dial: 0 - 100 μSv/h (0 - 10 mrem/hr), BAT OK

Meter: 6.4 cm (2.5 in.) arc, 1 mA analog type

Digital Display: 6-digit LCD with 0.64 cm (0.25 in.) digits

Multipliers: x0.1, x1, x10, x100

Response: Will vary according to the number of counts present, typically 2 to 11 s from 10% to 90% of final reading

Audio: Built-in unimorph speaker with volume control (greater than 60 dB at 61 cm [2 ft], full volume)

Power: 2 each “D” cell batteries (housed in sealed compartment that is accessible from front of instrument)

Connector: Series “C” (others available on request)

Overall Size (H x W x L):

Without PRESCILA: 19.6 x 8.9 x 21.1 cm (7.7 x 3.5 x 8.3 in.), including connector protrusion

With PRESCILA: 32.3 x 13.7 x 34.3 cm (12.7 x 5.4 x 13.5 in.), including connector protrusion

Weight:

Without PRESCILA: 2.0 kg (4.5 lb), including batteries

With PRESCILA: 4.2 kg (9.2 lb), including batteries

Datasheet

Manual 2363

Manual 42-41L