Medical equipment units (mechanical direction or electronic direction, undergraduate generally can not do the design), the software industry (information direction), research institutes.
But if you go into a hospital, you'll only need certain skills as a medical physicist, you'll do nothing almost every day in the information department, and you'll just have to manage and administer the machines in the equipment department. You need a doorway to get into a hospital, and it's hard to get into a research institute. If you don't particularly like hospitals, switch to mechanics, electronics or software as soon as possible.