Which radiation is described as having medium penetration and exposure hazards including skin dose and possible eye lens dose?

Which radiation is described as having medium penetration and exposure hazards including skin dose and possible eye lens dose?

• A. Alpha
• B. Gamma
• C. Beta
• D. Neutron

Answer: (C)

Medium-penetrating radiation is beta radiation. Beta particles are fast-moving electrons emitted from certain unstable nuclei. They travel a short distance in tissue, depositing energy near the surface, which makes skin dose a real concern and can also affect the eye lens with close exposure. Shielding for beta is typically lightweight material like plastic or aluminum to stop the particles before they reach skin or eyes. Alpha radiation has very limited penetration and is mainly hazardous if it gets inside the body, not as a skin or eye surface dose. Gamma radiation penetrates deeply and causes exposure throughout the body, not focused on skin or eye lens. Neutron radiation has different, more variable penetration and exposure characteristics, often involving internal damage as well. So the description of medium penetration with skin and eye lens dose fits beta radiation best.

Medium-penetrating radiation is beta radiation. Beta particles are fast-moving electrons emitted from certain unstable nuclei. They travel a short distance in tissue, depositing energy near the surface, which makes skin dose a real concern and can also affect the eye lens with close exposure. Shielding for beta is typically lightweight material like plastic or aluminum to stop the particles before they reach skin or eyes.

Alpha radiation has very limited penetration and is mainly hazardous if it gets inside the body, not as a skin or eye surface dose. Gamma radiation penetrates deeply and causes exposure throughout the body, not focused on skin or eye lens. Neutron radiation has different, more variable penetration and exposure characteristics, often involving internal damage as well. So the description of medium penetration with skin and eye lens dose fits beta radiation best.