55901 End - Window Counter With Cable

End - Window Counter With Cable Self-quenching Geiger-Müller counter tube, in a plastic housing, with a very thin mica end-window which also allows the registration of soft β radiation. With a permanently attached cable. Complete with a protective cap for the mica window. Additionally required: Rate meter with integrated high-voltage supply. Technical Data: • Gas filling: neon, argon, halogen • Mean operating voltage: 450 V • Connection: screened cable, 55 cm long, with coaxial plug (Amphenol-Tuchel T 3162/1) • Plateau length: 200 V • Relative plateau slope: < 0.05 % V-1 • Dead time: approx. 100 µs • Service life: > 1010 pulses • Background in plateau: approx. 0.2 pulses s-1. (with 50 mm Pb and 3 mm Al shielding) • Responsivity to γ radiation: approx. 1 % • End-window: 9 mm dia. • Mass per unit area 1.5 ... 2 mg cm-2 • Dimensions: 75 mm x 24 mm dia. INSTRUCTIONS FOR USE PLEASE CLICK HERE