An alpha particle can produce fluorescence in__________________?
Correct answer: D. All of above
- A. ZnS
- B. Barium platinocyanide
- C. Calcium tungstate
- D. All of above
Explanation
Alpha particles can produce fluorescence in scintillating materials such as zinc sulphide, barium platinocyanide and calcium tungstate. A student may choose zinc sulphide because it is the classic material used in Rutherford's scintillation screen, but the other listed substances can also fluoresce under radiation.
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