
The setup; note that speakers are necessary
to hear the click associated with counts
(Jeff has the speakers!) |

3-prong beaker clamp, a.k.a. The Claw |

The radiation monitor is held by the claw;
note RJ-11 cable connected to side
|

Sort metal pieces into piles, place on
front bench
|

Connect 8-pin serial adapter to COM1;
connect RJ-11 cable |

If necessary, use 8-pin to 25-pin adapter |
The
following demo is set up on the right front bench: |

The demo setup
|

The scope trace
|

The Geiger counter in action |

Connections on back of counter:
Middle wire to Geiger Tube
Bottom wire to Oscilloscope
Gray wire to Timer
Brown wire to 120V AC |

See-thru oscilloscope |

Connection from counter |

Geiger tube with Radium source
(in small oval containers: Watson has them!) |

Geiger tube in stand over source |

High voltage gets set to 1000 volts |

Turn timer on, or counter won't work! |