Due to the requirement for a small physical size, all these reactors other than the MH-1A used highly enriched uranium (HEU); the MH-1A had more space to work with, and so this was a low-enrichment reactor.
All these reactors other than the MH-1A used highly enriched uranium (HEU); the MH-1A had more space to work with. This was due to the requirement for a small physical size. This was a low-enrichment reactor.