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m43-93

m43-93

m43-93_face_693029512

Model 43-93

Alpha-Beta Scintillation Detector

Part Number: 47-2556

Specifications

Indicated Use	Simultaneous alpha and beta survey
Detector Type	ZnS(Ag) scintillator adhered to 0.25 mm (0.01 in) thick plastic scintillator
Window	1.2 mg/cm²metalized polyester
Window Area	Active: 100 cm² (15.5 in²) Open: 88 cm² (13.6 in²)
Protective Screen	0.79 mm (0.031 in.) thick, 6.5 mm (0.26 in.) square openings, 88% open Outer Dimensions (L x W): 168 x 92 mm (6.6 x 3.6 in.) Tool-less removal for quick window replacements
Efficiency (4π)	⁹⁹Tc: 15% ⁹⁰Sr/⁹⁰Y: 20% ²³⁹Pu: 20%
Typical Background (10 µR/hr field)	Alpha: 3 cpm or less Beta: 300 cpm or less
Cross Talk	Alpha to Beta: 10% or less Beta to Alpha: 1% or less
Detector Uniformity	within 15% of average reading
Gamma Sensitivity	15 to 20 cpm per µR/hr (¹³⁷Cs)
Photomultiplier Tube	29 mm (1.125 in.) diameter
Operating Voltage	typically 500 to 1200 V (1500 V max.)
Temperature Range	-20 to 40 °C (-4 to 104 °F) A version designed to be used at temperatures up to 50 °C (122 °F) is also available. See Options.
Connector	Series "C" (others available)
Construction	Aluminum with beige powder coating
Size (H x W x L)	6.4 x 9.5 x 31 cm (2.5 x 3.8 x 12.3 in.)
Weight	0.45 kg (1.0 lb)

Suggested Instruments

Model	Description	Part Number
Model 3002	Digital Survey Meter For alpha-beta counting Can store up to 1000 data points	48-4037
Model 3003 Series	Multi-Detector Digital Survey Meter Up to 4 selectable & configurable detector settings Alpha, beta, or alpha+beta measurements Single channel analyzer Can store up to 1000 data points	48-4289
Model 2360	Analog Datalogging Meter with Digital Scaler LCD Simultaneous alpha-beta measurements Can stores up to 550 data points	48-2872

Options

Protective Screens

Description	Thickness	Openings	% Open	Part Number
Protective Screen (standard)	0.79 mm (0.031 in.)	6.5 mm (0.26 in.) square	88%	7393-171
Protective Screen	0.79 mm (0.031 in.)	4.8 mm (0.19 in.) hex	83.5%	7393-208
Protective Screen	0.79 mm (0.031 in.)	4.0 mm (0.16 in.) square	81%	7393-209
Protective Screen	0.51 mm (0.020 in.)	6.5 mm (0.26 in.)	88%	7393-138
Protective Screen with Mesh	0.85 mm (0.0335 in.)	Screen: 6.5 mm (0.26 in.) square Mesh: Fine stainless steel mesh	69%	2393-381
Face Ring with Mesh (should be paired with one of the screens above)	Mesh: 0.064 mm (0.0025 in.)	Fine stainless steel mesh	78%	2393-345

Option	Description	Part Number
Model 180-15-3	Sample holder for max. 5.1 x 1.5 cm (2 x 0.6 in.) [D x L] samples.	47-3865
Model 43-93 High Temperature Version	This version has a plastic scintillator designed for use at higher temperatures, up to 50 °C (122 °F).	47-4468

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