beta ray

Thân thiện

A scientist observes beta ray emission in a laboratory experiment.

Definition

1. Noun:
   • Beta ray: A stream of beta particles (high-energy, high-speed electrons or positrons) emitted by certain types of radioactive atomic nuclei during radioactive decay. Beta rays are a form of ionizing radiation.

Usage Examples

• Noun:
  • The scientist used a Geiger counter to detect the beta rays emitted by the sample.
  • Shielding for beta rays often requires materials like plastic or aluminum, rather than thick lead.

Advanced Usage

• "Beta-ray emission": The process by which a nucleus releases a beta particle.
  • The isotope's decay is characterized by beta-ray emission.
• "Beta-ray spectrum": The distribution of energies among the beta particles emitted from a source.
  • Analyzing the beta-ray spectrum helps identify the radioactive isotope.

Variants and Related Words

• Beta particle (n): The actual high-speed electron or positron emitted, constituting the "ray."
  • A beta particle has a single negative or positive charge.
• Beta decay (n): The radioactive process that produces beta particles/rays.
  • Carbon-14 undergoes beta decay to become nitrogen-14.
• Beta radiation (n): Synonymous with "beta rays," referring to the phenomenon.
  • The lab technician wore protective gear to minimize exposure to beta radiation.

Synonyms

• Beta radiation: Often used interchangeably with "beta ray."
• Beta-particle emission: Describes the same physical phenomenon.

Related Phrases

• "Penetrating power of beta rays": A phrase describing how far beta rays can travel through matter.
  • The experiment demonstrated the limited penetrating power of beta rays compared to gamma rays.
• "Beta-ray detector": A device, such as a Geiger-Müller tube, used to sense beta radiation.
  • They calibrated the beta-ray detector before beginning the measurement.

Học thuật

Noun

1. radiation of beta particles during radioactive decay

Từ đồng nghĩa

• beta radiation
• electron radiation