10HZ to 60hz with Arduino

I am currently on Geneva, Switzerland and because my dad, Joel Fajans, works at CERN during the summer. I have been doing a few projects for him. A few days ago he asked me do code a 10HZ to 60HZ converter for the arduino for the camera his experiment is using. I needed to stop when the 10hz signal stopped and also needed to start within 10 microseconds of when the ardueno received the 10 HZ signal.
See the code on Github.