Ampola 7237
Características da Ampola utilizada pelos Geigers MRA
 
     Nos monitores de radiação Geiger MRA utilizamos ampolas fabricadas pelos mais conceituados fabricantes de detectores de radiação do mundo. Segue abaixo as especificações técnicas fornecidas pelos fabricantes.
 
End Window-Alpha-Beta-Gamma Detector

GENERAL SPECIFICATIONS

Gas Filling Ne +Halogen
Cathode Material 446 Stainless Steel
Maximum Length (inch/mm) 4.85 / 123.1
Effective Length (inch/mm) 2.6 / 66.0
Maximum Diameter (inch/mm) 1.38 / 34.9
Effective Diameter (inch/mm) 1.13 / 28.6
Connector MHV
Operating Temperature Range 0C -55 to +75

WINDOW SPECIFICATIONS

Areal Density (mg/cm2) 2.0
Effective Diameter (inch/mm) 1.13 / 28.6
Material Mica

ELECTRICAL SPECIFICATIONS

Recommended Anode Resistor (meg ohm) 1
Maximum Starting Voltage (volts) 800
Recommended Operating Voltage (volts) 900
Operating Voltage Range (volts) 850-1000
Maximum Plateau Slope (%/100 volts) 10
Minimum Dead Time (microsec) 150
Gamma Sensitivity Co60 (cps/mR/hr) 45
Maximum Background Sheilded 50mmPb + 3mmAl (cpm) 50
Tube Capacitance (pf) 3
Weight (grams) 155

COMPLEMENT


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