The Deck Gamma Monitor Hall is a room on the Frigate Orpheon. It acts as a hallway between the Reactor Core and Connection Elevator to Deck Beta.
Samus enters this room while escaping the destruction of the frigate. The room has a number of steps she must jump up, and the walls are lined with panels that cannot be scanned, but that appear to be warnings or indications of system failure. The door to the Reactor Core is sealed to prevent radiation leaks.
Available Logbook Entries
A map of the Deck Gamma Monitor Hall