Ludlum Model 43-1-1

  Alpha Beta Radiation Scintillation Detector

Introduction

The Ludlum Model 43-1-1 is a large area dual phosphor alpha beta radiation scintillation detector that is designed to be used for simultaneously counting alpha and beta radiation contamination.

Specifications

PART NUMBER: 47-2336

INDICATED USE: Alpha beta radiation survey
RADIATION SCINTILLATOR: ZnS(Ag) adhered to 0.010" thick

plastic scintillation material
WINDOW: Typically 0.8 mg/cm² aluminized mylar (1.2 mg/cm² recommended for outdoor use)
WINDOW AREA:
     Active - 83 cm²
     Open - 75 cm²
EFFICIENCY (4pi geometry): Typically 30% - ²³⁹Pu; 30% - ⁹⁰Sr/⁹⁰Y; 5% - ¹⁴C
BACKGROUND:
     Alpha - Less than 3 cpm
     Beta - Typically 300 cpm or less (10 microR/hr field)
NON-UNIFORMITY: Less than 10%
CROSS TALK:
     Alpha to Beta - Less than 10%
     Beta to Alpha - Less than 1%
COMPATIBLE INSTRUMENTS: Models 2224-1, Model 2360
TUBE: 1.5"(3.8cm) diameter magnetically shielded photomultiplier
OPERATING VOLTAGE: Typically 500 - 1200 volts
DYNODE STRING RESISTANCE: 100 megohm
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: 4.8" (12.2cm) diameter X 9.8" (24.9cm)L
WEIGHT: 2 lb (0.9 kg)

This Product is CE Certified

Replacement Parts

• Mylar Window

• Photomultiplier Tube

• Scintillator

Technical Information

• Model 43-1-1 Data Sheet

• Model 43-1-1 Manual

• Model 43-1-1 CE Certificate

Other Ludlum Products

• Other Ludlum Products

Ludlum Information

• Ludlum Introduction

• Ludlum Resources

• Ludlum Warranty

• Ludlum Repair and Calibration

• Ludlum Training