Neutron radiation consists of free neutrons that are released during nuclear reactions, such as fission or fusion. Unlike charged particles, neutrons are neutral and can penetrate materials more deeply, making them particularly effective in causing nuclear reactions in other atoms. This type of radiation is commonly encountered in nuclear reactors and certain types of particle accelerators. Neutron radiation can be harmful to living organisms, as it can disrupt atomic structures and damage biological tissues. Shielding against neutron radiation typically requires materials rich in hydrogen, such as water or polyethylene, which can effectively slow down and capture neutrons. Understanding neutron radiation is crucial for safety in nuclear energy and medical applications involving radiation therapy.