Which type is penetrating-high, shielding includes water, lead, steel, concrete, hazard dose to the entire body if exposed, found only in or near the operation reactor?

Which type is penetrating-high, shielding includes water, lead, steel, concrete, hazard dose to the entire body if exposed, found only in or near the operation reactor?

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

Answer: (B)

Radiation types differ in how deeply they penetrate and how we shield them, plus where they’re typically produced. Neutron radiation is highly penetrating and needs hydrogen-rich shielding to slow and absorb them; water and concrete are classic examples of such shielding. In a reactor environment, neutrons are produced by fission and can travel to the whole body if not adequately shielded, making whole-body dose a major concern whenever exposure occurs. Shielding around reactors often combines moderators (like water or concrete) with absorbers, while other materials such as steel or lead are more about shielding different radiation types (lead for gamma rays). This combination of high penetrating power, effective hydrogenous shielding, the potential for whole-body dose, and association with reactor operation all point to neutrons as the type described.

Radiation types differ in how deeply they penetrate and how we shield them, plus where they’re typically produced. Neutron radiation is highly penetrating and needs hydrogen-rich shielding to slow and absorb them; water and concrete are classic examples of such shielding. In a reactor environment, neutrons are produced by fission and can travel to the whole body if not adequately shielded, making whole-body dose a major concern whenever exposure occurs. Shielding around reactors often combines moderators (like water or concrete) with absorbers, while other materials such as steel or lead are more about shielding different radiation types (lead for gamma rays). This combination of high penetrating power, effective hydrogenous shielding, the potential for whole-body dose, and association with reactor operation all point to neutrons as the type described.