User:Brian P. Josey/Notebook/Junior Lab/2010/09/27: Difference between revisions

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==Neon==
==Neon==
This week we are doing the excitation and ionization levels of Neon.
This week we are doing the excitation and ionization levels of Neon. The purpose of this experiment is to demonstrate the energy quantization of atoms. To do this, we bombarded neon atoms with electrons generated by a power supply. By varying the potential of the electrons bombarding the neon, we were able to measure the current across the neon and plot the two sets of data against each other. From these plots we were able to determine the ionization points for neon.


===Equipment and Set Up===
===Equipment and Set Up===
This is all of the equipment that we used in today's lab:
This is all of the equipment that we used in the experiment:


* The tube containing the Neon, and a wire ring
* The tube containing the Neon, and a wire ring

Revision as of 09:32, 10 October 2010

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Neon

This week we are doing the excitation and ionization levels of Neon. The purpose of this experiment is to demonstrate the energy quantization of atoms. To do this, we bombarded neon atoms with electrons generated by a power supply. By varying the potential of the electrons bombarding the neon, we were able to measure the current across the neon and plot the two sets of data against each other. From these plots we were able to determine the ionization points for neon.

Equipment and Set Up

This is all of the equipment that we used in the experiment:

  • The tube containing the Neon, and a wire ring
  • Alarm Meter
  • Picoamplifier
  • SOAR Corporation DC Power Supply 7403
  • Digital Multimeter
  • Battery and Battery Unit
  • Kepco Power Supply

We connected them with wires in the following way:

  • The ground from the Soar power supply was input into ground, middle of three connectors, on the picoamplifier
  • Third of three on picoamplifier connected to negative of the battery.
  • Positive of battery connected to positive on kepco power supply.
  • Also from positive on kepco power supply:
    • Red input on multimeter
    • A1 on neon tube stand
  • Kepco Negative:
    • f3 on stand
    • black input on multimeter
  • From stand
    • F3 to possitive on soar
    • F4 to C5 on stand
    • negative on soar

Procedure

We then set the voltage on the Soar Power Supply to 2.1 V, and starting at zero increased the voltage on the Kepco Power Supply in incriminates of 1V each. There we measured the current on picoamplifier.

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PICTURES!



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