How does ionizing radiation from a nuclear explosion cause hair loss in blast victims?

I'm doing a research project on effects on atomic bombs. can offer any information pls?How does ionizing radiation from a nuclear explosion cause hair loss in blast victims?
hair folicles are near the surface and very sensative to radiation.





When radiation strikes complex biological molecules, such as proteins or nucleic acids, it may fracture the molecules and prevent their proper functioning. This can result in loss of cell vitality, decreased enzyme activity, initiation of cancer, and genetic mutations. The immediate effects of acute exposure to radiation are caused by free radicals rupturing the cell membranes. This rupturing causes the cells to lose their contents and die. If enough cells are killed, functions associated with the cells cease. Death occurs because of the direct loss of vital organs or because of secondary infections resulting from the breakdown of the immune system. The effect depends on the dose of radiation received.





High doses of more than 100 gray affect the central nervous system, resulting in loss of coordination (including breathing problems), with death occurring within 1 or 2 days. Doses from 9 to 100 grays damage the gastrointestinal tract, causing nausea, vomiting, and diarrhea. Progressive dehydration can result in death within several weeks. Lower doses (from 3 to 9 grays) damage the bone marrow and other haematopoietic tissues. This can lead to loss of appetite and hair, hemorrhaging, inflammation, and secondary infections such as pneumonia. These effects are also found in patients undergoing radiation therapy. Doses of less than 3 grays are rarely lethal, but cause symptoms that include loss of appetite and hair, hemorrhaging, and diarrhea.How does ionizing radiation from a nuclear explosion cause hair loss in blast victims?
It causes cell death.