Equipment List:
- Electron Diffraction Set up
- Electron Diffraction Tube
- Tube Holder S
- Kilovolt Power Supply
- Power Cord
- Wires:
- Red Banana Cord (Male to female needed for the older Tube Holders with a male banana plug at G7)
- 2 x Black Banana Plug (Shrouded Preferred)
- Blue Banana Plug (Shrouded Preferred)
- Yellow Banana Plug (Shrouded Preferred)
- Light Wave Interference Set up
- Optics Track
- Green Diode Laser
- Green Diode Laser Power Supply
- Wireless Diffraction Scanner
- 2 x Wireless Diffraction Scanner Screw
- USB A to Micro cable (plug this in to the computer and scanner immediately to begin charging)
- Track Nuts There needs to be at least 2 in the track
- Caliper
- Bar Magnet
Electron Diffraction Bulb Wiring Guide:
- Red Banana Cord: G7 to ( + ) Red High Voltage Terminal
- Black Banana Cord: F3 to 6.3V AC Terminal (polarity does not matter)
- Black Banana Cord: F4 to 6.3V AC Terminal (polarity does not matter)
- Blue Banana Cord: C5 to ( - ) Blue High Voltage Terminal
- Yellow Banana Cord: C5 to ( ⏚ ) High Voltage Terminal
(this cord will be plugged into the back of the blue cord already in C5)
Notes and tests:
- Only Install The Bulb With Gloves On
- To test the Electron Diffraction Setup:
- Double check the wiring.
- Turn on the power supply and wait 10 seconds for the heater to warm up. There should be a red glow in the tube when it's ready
- Slowly turn the voltage up to 5000 Volts. Be sure not to exceed 5000 V!
- Let the lamp sit for a minute or two then check how bright the rings are. You may need to dim the room lights.
- Slowly reduce the voltage to 0 Volts. The diffraction rings should get larger as the voltage goes down, and turn off completely around 2000 V.
- Turn off the power supply
- To set up and test the Light Wave Interference Setup:
- Unplug the charing USB cable from the light-sensing scanner (light sensor henceforth). The bluetooth connection needs to be tested without the sensor plugged in.
- Place the light sensor on the right side of the track with the yellow measuring tape side of the track facing you.
- Screw the two long screws into the track nuts in the track.
- Turn on the light sensor.
- Open Capstone on the computer and choose the "Light Intensity vs Position" QuickStart Experiment
- Connect the light sensor to Capstone:
- Open Hardware Setup
- Select the Diffraction Position Sensor with the code matching the one on the back of the light sensor at your table
- If there are issues connecting, try connecting it while the USB cord is plugged in first to see if the issue is with the sensor or the computer
- The computers need to have a bluetooth dongle plugged into a USB port somewhere. Check to see that it is there
- Place the laser on the left side of the track and plug the power cord into the Laser.
- Place the diffraction slit accessory about 5 cm from the laser with the printed side facing the laser and rotate the wheel until it is set to the 0.02mm single slit.
- Turn on the laser and use the vertical and horizontal adjustment screws to aim the laser at the slit.
- Center the light sensor's slit on the middle of the diffraction pattern
- Click Record in Capstone and move the light sensor through the diffraction pattern to ensure that the sensor is taking data. Stop recording.
- Close Capstone then turn off the laser and sensor.
- Plug the light sensor back into the computer to allow it to charge.

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