He nodded, then, watching her. She made him smile, and she tried, more than most who were not interested, or not in the field. He would have to find a way to thank her.
"Yeah. To, without side effects, help people against ills, and to cure ailments. If it works... sometimes these things have side effects."
He shivered for a moment, then smiled a little.
"Yes. Radiative science. I study how radiation affects humans and the environment, and where it comes from. I try to look for medical and safety uses, as well as scientific ones. I just want to help people. To see if I can't use the tools God put in the world to cure the ills that exist in it."