gamma ray

Thân thiện

A scientist uses a detector to measure gamma rays from a radioactive sample.

Definition

1. Noun:
   • Electromagnetic radiation of very high frequency and energy: A "gamma ray" is a form of electromagnetic radiation with a wavelength shorter than that of X-rays, produced by the decay of atomic nuclei and other high-energy processes.

Usage Examples

• Noun:
  • The medical device uses gamma rays to target and destroy cancerous cells.
  • Astronomers study gamma rays from distant pulsars to understand high-energy astrophysics.
  • The radioactive material emits both alpha particles and gamma rays.

Advanced Usage

• "Gamma-ray burst" (GRB): A cataclysmic astronomical event that releases an immense amount of gamma-ray energy in a very short time.
  • Scientists are trying to determine what causes a gamma-ray burst.

Variants and Related Words

• Gamma radiation (n): Another term for gamma rays, emphasizing the radiative process.
  • The workers were shielded from gamma radiation by thick lead walls.

Synonyms

• Gamma radiation
• Hard radiation (in specific contexts, referring to its high penetrating power)

Related Phrases

• Gamma-ray astronomy: The branch of astronomy concerned with the observation of celestial gamma-ray sources.

  • Gamma-ray astronomy has revealed many violent phenomena in the universe.

• Gamma-ray spectrometer: An instrument for measuring the energy distribution of gamma rays.

  • The probe carried a gamma-ray spectrometer to analyze the composition of the asteroid's surface.

Học thuật

Noun

1. electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength

Từ đồng nghĩa

• gamma radiation