New measurements to guide radiation therapy

When ionizing radiation passes through living tissue, it interacts with molecules present in the cells, stripping away electrons and producing charged species known as ions. Ionizing radiation used for cancer treatment includes ...

Lightning produces afterglow of gamma radiation

Lightning can produce X-rays and gamma radiation. In the past, researchers thought that this phenomenon only lasted for a very short time, about one ten-thousandth of a second. However, the ionizing radiation of lightning ...

New technique 'sees' radioactive material even after it's gone

A new technique allows researchers to characterize nuclear material that was in a location even after the nuclear material has been removed – a finding that has significant implications for nuclear nonproliferation and ...

Moon tourists risk rough ride, experts say

Non-stop vomiting, a puffy face and the constant need to pee: Volunteers for a week-long loop around the Moon may be in for a rough ride even if all goes to plan.

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