User:Matthew Cordova/Notebook/Physics 307L/2010/12/01: Difference between revisions

From OpenWetWare
Jump to navigationJump to search
Line 23: Line 23:


=Set Up=
=Set Up=
A detailed set up can be found in [http://www-hep.phys.unm.edu/%7Egold/phys307L/manual.pdf Prof. Gold's lab manual].  Basically, a power source is attached to the Helmholtz coils in order to create a magnetic field.  Another (separate) power supply is attached to the electron gun.  Use voltmeters to achieve a more accurate reading on the voltage/amperage being applied to the apparatus.
*Note:  If the electron beam bends downwards instead of forming a circle, simply flip how the electron gun is attached to the power supply.


=Procedure=
=Procedure=

Revision as of 21:44, 12 December 2010

e/m Ratio <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>


Safety

  • A high voltage source is in use.
  • This lab is done primarily in a dimly lit room. Be aware of your surroundings.

Equipment

  • e/m Experimental Apparatus, composed of a tube of dilute helium gas, an electron heater, focusing magnets, and a Helmholtz coil used to provide a constant magnetic field
    • This description is from Brian Josey's lab notebook
  • SOAR DC Power Supply Model PS-3630 (Electron Gun Heater)
  • Gelman Instrument Company: Deluxe Regulated Power Supply
  • Hewlett Packard 6384A DC Power Supply (Helmholtz Coils)
  • Multiple BNC cables
  • 3 voltmeters (one of which was used as an ammeter)

Set Up

A detailed set up can be found in Prof. Gold's lab manual. Basically, a power source is attached to the Helmholtz coils in order to create a magnetic field. Another (separate) power supply is attached to the electron gun. Use voltmeters to achieve a more accurate reading on the voltage/amperage being applied to the apparatus.

  • Note: If the electron beam bends downwards instead of forming a circle, simply flip how the electron gun is attached to the power supply.

Procedure

Calculations and Results

References


Retrieved from "https://openwetware.org/mediawiki/index.php?title=User:Matthew_Cordova/Notebook/Physics_307L/2010/12/01&oldid=479586"