No, it is a reactor not an RTG. It is self-regulating (load following) to some extent so it doesn't have many moving parts. It has two main control mechanisms:

No, it is a reactor not an RTG. It is self-regulating (load following) to some extent so it doesn't have many moving parts. It has two main control mechanisms: a neutron absorbing control rod and a Beryllium neutron reflector. Lots of details here: https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20140017750.pdf https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/201400...