TY - GEN AU - Classic,K TI - Ask the expert. X-ray baggage scanning machines. Neutron well logging. 90Sr into the environment SN - 0017-9078 PY - 2001///0823 KW - Humans KW - Neutrons KW - Power Plants KW - Radiation Protection KW - Radioactive Pollutants KW - Strontium Radioisotopes N1 - Publication Type: Journal Article UR - https://doi.org/10.1097/00004032-200108001-00005 ER -