JHU Quarknet Summer Workshop 2014
Afternoon Activity: Photoelectric Effect Apparatus
On this page you can find the following:
1) Original instructions (with materials list) for the building of the device
2) Steve Wonnell's addenda for modifying the device for (a) all LEDs permanently wired to a "dial" selector switch and (b) discrete adjustments to the LED brightness via a second dial for more quantitative measurements. Included:
--An updated list of parts
--Template to print and atttach to the underside of the lid, for drilling holes
--Schematic diagram for the wiring of the dial switches
--Photos of the device with light shield removed to see the tube, and in operation
4) An example of a lab activity from U. of Missouri KC, discovered by Sue Ann Ness, which has a good set of instructions and diagrams for this device.
5) Spectroscopic data for the LEDs (compressed into single .rar file) in CSV spreadsheet format; should be readable by LoggerPro