Equipment List:

1. Spectrometer
   • Crosshair Lens
   • Diffraction Grating Setup
     • Optical Stage
     • Grating holder
     • Diffraction Grating
     • Binder Clip
     • 2 x holder attachment screws
   • Parts of the spectrometer that don't usuallly need replacing:
     • Slit
     • Levelling Screws
     • Tightening Screws (The long ones)
     • More to come
2. Emission Tube Setups
   
   

   • Sodium Emission Lamp
     • Self Contained Sodium Lamp
     • May need a power cord
     • 2 x Metal Light Shields
     • 2 x Plastic light Shields
     • Wooden Elevation Blocks
   • Hydrogen Emission Lamp
     • Spectrum Tube Power Supply
     • Hydrogen Tube
     • May need a power cord
     • Scissor Lift
   • Mercury Emission Lamp
     • Spectrum Tube Power Supply
     • Hydrogen Tube
     • May need a power cord
     • Scissor Lift
   • If we run out of Hg tubes: Mercury Emission Lamp
     • Self Contained Mercury Lamp
     • May need a power cord
     • 2 x Metal Light Shields
     • 2 x Plastic light Shields
     • Wooden Elevation Blocks
3. Loupe (for magnifying the vernier scale)
4. 2 x Wooden "Legs"
5. Wooden platform
6. Table Lamp
   • Standard bulb for table lamp

General Class Use:

1. Atomic Spectra Poster on the wall.
2. Human readable name in case of failure another item

Setup Instructions

Spectrometer Setup and Calibration

1. Place all of the Emission Lamps at the back of the table. Put Hydrogen and sodium on their block or lift.
   Open this accordion for tables across from one another

   Additional Required Equipment

   1. Wooden platform
   2. 4 x Large Table Clamp

   
   

   Platform installation

   1. Position the wooden platform so that it spans the two tables in a spot that has a clear view from both tables.
   2. Clamp the platform securely to both tables using the large table clamps.
   3. Place the sodium lamp in the middle of the platform oriented so that the bulb hole is visible to both tables.
   4. Make sure the metal covers are in place covering the bulb hole.
2. Turn on all of the sodium lamps. They need to be on for 15 minutes to properly warm up.
3. Carefully remove the spectrometer, wooden legs, and loupe from the wooden case. For inventory purposes, check that the VT tag number on the case matches the sticker on the spectrometer
4. Insert the legs into the front and back of the spectrometer base and align the whole setup so that the collimator is pointing at the center of the hydrogen tube.
5. Turn on the hydrogen lamp
6. Put on gloves for the rest of the setup
7. Loosen the optical stage locking screw (labelled as 1 in the diagram) and remove the optical stage. Check that the diffraction grating is present. Carefully place the stage on the table.
8. Check that the crosshair is present by looking down the telescope. Rotate the eyepiece so that the crosshair has one line vertical and one line horizontal
9. Loosen the telescope locking screw and rotate the Telescope so that it is Pointing at a bright object in the distance. Adjust the focus by turning knob A until the image of the object coincides with the crosshairs
10. Open the slit to fairly wide by turning the knob next to it (C on the diagram).
11. Rotate the telescope until light from the slit is visible and centered.
12. Move the spectrometer setup until the light from the sodium lamp is the only light you see coming through the slit (The telescope should be parallel to the collimator).
13. Adjust the collimator tube by turning knob B until the slit edges are in focus and sharp.
14. Ensure the slit is vertical and parallel to the vertical crosshair by loosening the slit's locking ring and rotating it.
15. Reinstall the optical stage and rotate the stage until diffraction grating is perpendicular to the collimator. Tighten the locking screw again.
16. Rotate the telescope until you see the first order hydrogen lines on one side then the other. If these lines are cut off on the top or bottom, open this accordion
    1. Ensure that the diffraction grating is level with the optical stage with your Gloved! hands.
    2. Level the optical stage by adjusting the levelling screws in the optical stage (not labelled in the diagram).
    3. As you adjust the levelling screws, the images of the hydrogen lines will move up and down. Keep adjusting the screws until the lines are centered and have little to no inclintation.
    4. Rotate the telescope to the opposite first order lines and ensure that they are not cut off as well.
17. Test the other two emission lamps by putting them in front of the spectrometer and checking that their spectral lines are visible.