Action Quote by Frederic Joliot-Curie
![“Some months ago we discovered that certain light elements emit positrons under the action of alpha particles. Our latest experiments have shown a very striking fact: when an aluminium foil is irradiated on a polonium preparation [alpha ray emitter], the emission of positrons does not cease…” quote by Frederic Joliot-Curie](https://sms4smile.com/quotes/img-quotes/113/fr-d-ric-joliot-curie-69278_action_some-months-ago-we-discovered-that-certa_554473.jpg)
“Some months ago we discovered that certain light elements emit positrons under the action of alpha particles. Our latest experiments have shown a very striking fact: when an aluminium foil is irradiated on a polonium preparation [alpha ray emitter], the emission of positrons does not cease immediately when the active preparation is removed: the foil remains radioactive and the emission of radiation decays exponentially as for an ordinary radio-element. We observed the same phenomenon with boron and magnesium.”
About This Quote
Source Scientific paper: “Positron emission from aluminium under alpha irradiation” by Frederic Joliot-Curie, 1935
Alpha particles can induce prolonged positron emission in certain metals, showing delayed radioactive decay after the source is removed.
In simple terms: Alpha particles cause lasting radioactivity in some metals.
Key Takeaway
Consider delayed effects in radiation safety.
Themes
science
radioactivity
physics
Mood
analytical
curious
Type
technical
inquisitive
When to use this quote
- radiation shielding
- medical imaging
- nuclear waste management
Key Concepts
nuclear decay
material science
Questions to Reflect On
- How does this affect safety protocols?
- What other materials might exhibit similar behavior?
A Different Perspective
The phenomenon may be limited to specific conditions and materials.
