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Target intelligence / Profile preview
Alpha Particle Radiation (α)
- Target
- α
- Molecular classification
- Radiation, Particle
01
Overview
Alpha particle radiation consists of particles made up of two protons and two neutrons bound together, identical to the nucleus of a helium-4 atom. Alpha particles are emitted during the radioactive decay (alpha decay) of heavy elements. While they have low penetration power externally, they pose a significant hazard if inhaled, ingested, or enter the body through wounds due to their high ionization capability and localized energy deposition within tissues.
- Other names
- Alpha RaysHelium-4 Nucleus
02
Mechanism of action
N/A
03
Biological functions
DNA damageCellular damageIonization
04
Disease associations
Cancer (indirectly)Radiation poisoning
05
Safety considerations
Internal exposure hazardHigh ionization potential leading to significant DNA damage upon internalizationPotential for causing cancer upon internal exposure
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