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Determining the half-life of Cs-137 - Point-by-point recording of a decay curve
  1. Introductory experiments
  2. Atomic shell
  3. Radioactivity
  4. Quantum physics

End-window counter with cable for α, β, γ and X-rays

LD 559 01
End-window counter with cable for α, β, γ and X-rays
  8  End-window counter with cable for α, β, γ and X-rays

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 This experiment/set up contains dangerous goods.
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Description

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
  • Dead time: approx. 100 µs
  • Service life: > 1010 pulses
  • Background in plateau: approx. 0.2 pulses/s
    (with 50 mm lead and 3 mm aluminium shielding)
  • Responsivity to γ radiation: approx. 1%
  • End-window: 9 mm diam.
  • Mass per unit area 1.5 ... 2 mg/cm2
  • Dimensions: 75 mm x 24 mm Ø
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