Ludlum Model 44-9-18

  Alpha Beta Gamma Telescoping Pancake G-M Detector

Introduction

The Ludlum Model 44-9-18 is an alpha beta gamma radiation pancake G-M detector with a telescoping handle and flexible neck that can be used with several different instruments including radiation survey meters, scalers, ratemeters, and alarm ratemeters.

Specifications

PART NUMBER: 47-2940

INDICATED USE: Alpha beta gamma radiation survey; Frisking
RADIATION DETECTOR: Pancake type halogen quenched G-M
WINDOW: 1.7 ± 0.3 mg/cm² mica
WINDOW AREA:
     Active - 15 cm²
     Open - 12 cm²
EFFICIENCY(4pi geometry): Typically 5%-¹⁴C; 22%-⁹⁰Sr/⁹⁰Y; 19%-⁹⁹Tc; 32%-³²P; 15%-²³⁹Pu
SENSITIVITY: Typically 3300 cpm/mR/hr (¹³⁷Cs gamma)
ENERGY RESPONSE: Energy dependent
DEAD TIME: Typically 80 microseconds
COMPATIBLE INSTRUMENTS: General purpose radiation survey meters, ratemeters, and scalers
OPERATING VOLTAGE: 900 volts
CONNECTOR: Series "C" (others available)
CONSTRUCTION: Aluminum housing with beige polyurethane enamel paint
TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
May be certified for operation from -40° F(-40° C) to 150° F(65° C)
SIZE: 1.8" (4.6 cm) H X 2.7" (6.9 cm) W X 23" (58.4 cm) L; 36"(91.4cm) fully extended
WEIGHT: 1.5 lb (0.7kg)

This Product is CE Certified

Replacement Parts

• Pancake G-M Tube

• Protective Screen

Technical Information

• Model 44-9-18 Data Sheet

• Model 44-9-18 Manual

• Model 44-9 Energy Response Curve

• Model 44-9 Beta Source Efficiencies

• Model 44-9 CE Certificate

Alternate Detectors

• Model 44-9 - Standard pancake G-M detector

• Model 44-40 - Pancake G-M detector with a lead housing to reduce background

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training