Physics teacher uses a RadiaCode 110 scintillation detector to manually scan a radioactive-source grid and produce a low-resolution gamma ray image via spreadsheet color mapping.
Key Takeaways
RadiaCode 110 records counts-per-second at each grid cell; data fed into a spreadsheet with auto color scale generates a crude gamma image.
Real gamma cameras use lead collimator tubes to isolate directional gamma rays, with a detector at each tube end, often still requiring scanning.
Demo uses thorium-containing gas mantles as the radioactive source; CLEAPSS safety guidance applies.
Designed as an A-level physics teaching aid to illustrate gamma camera concepts without specialized medical equipment.
