induced radioactivity
C2technical/scientific
Definition
Meaning
Radioactivity created in a material by bombarding it with radiation (like neutrons or protons), making it radioactive when it wasn't before.
The phenomenon where a stable substance becomes radioactive after being exposed to external radiation or particles, commonly occurring in nuclear reactors, particle accelerators, or during nuclear explosions.
Linguistics
Semantic Notes
Always refers to radioactivity that is not natural but artificially created through human intervention or exposure to a radiation source.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling follows regional conventions for related terms (e.g., centre/center in compounds).
Connotations
Identical technical connotations. May be more frequently encountered in British academic texts due to historical nuclear research.
Frequency
Equally rare in general discourse, used exclusively in nuclear physics, engineering, medicine, and security contexts in both varieties.
Vocabulary
Collocations
Grammar
Valency Patterns
Induced radioactivity IN [a material/substance]Induced radioactivity BY [neutron bombardment/exposure]Induced radioactivity FROM [a reactor/accelerator]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[none for this technical term]”
Usage
Context Usage
Business
Rare. Possibly in contexts of nuclear decommissioning, waste management, or insurance liability.
Academic
Primary context. Used in physics, nuclear engineering, radiological safety, and environmental science papers.
Everyday
Extremely rare. Might appear in news about nuclear accidents or historical weapon testing.
Technical
Core context. Precise term in nuclear facility operations, health physics, and materials science.
Examples
By Part of Speech
verb
British English
- The neutron flux induced radioactivity in the reactor vessel.
- Materials can be activated, inducing radioactivity.
American English
- The experiment induced radioactivity in the sample.
- They were concerned about inducing radioactivity in the shielding.
adverb
British English
- [No common adverbial form for this noun phrase]
American English
- [No common adverbial form for this noun phrase]
adjective
British English
- The induced-radioactivity levels were carefully monitored.
- An induced-radioactivity hazard exists in the beam dump.
American English
- The induced radioactivity measurement was crucial.
- They studied the induced radioactivity effects.
Examples
By CEFR Level
- (Not applicable at this level)
- (Not applicable at this level)
- The article explained that induced radioactivity can make objects near a nuclear reactor become radioactive.
- Safety protocols are designed to minimise induced radioactivity in medical equipment.
- Decommissioning the particle accelerator required managing materials with long-lived induced radioactivity.
- The study quantified the induced radioactivity in structural components after prolonged neutron irradiation.
Learning
Memory Aids
Mnemonic
Think: INDUCED = invited in. Radioactivity was 'invited into' a material that wasn't radioactive before.
Conceptual Metaphor
CONTAMINATION AS A TRANSFORMATIVE FORCE (a pure/stable substance is transformed into an active, dangerous one).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid literal translation that implies 'guided' or 'led' radioactivity. The correct Russian equivalent is "наведённая радиоактивность".
Common Mistakes
- Using 'inductive radioactivity' (incorrect – confuses with electromagnetic induction).
- Confusing it with 'background radioactivity' or 'fallout'.
Practice
Quiz
What is the primary cause of induced radioactivity?
FAQ
Frequently Asked Questions
Not exactly. Induced radioactivity refers to the atoms of the material itself becoming radioactive. Contamination usually means radioactive particles settling on a surface.
It depends on the material and the type of radiation induced. It can last from seconds to thousands of years, based on the half-lives of the radioactive isotopes created.
Yes, but it is very unlikely and requires extreme exposure, such as being close to an intense neutron source. Typical medical X-rays or CT scans do not induce radioactivity.
In nuclear reactors, particle accelerators, areas where nuclear weapons have been tested, and during the handling of certain radioactive sources in industry and research.