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Henry Thomas Sampson Jr. (April 22, 1934 – June 4, 2015) was an American engineer, inventor and film historian who created the gamma-electric cell in 1972 — a device with the main goal of generating auxiliary power from the shielding of a nuclear reactor. He was a member of the United States Navy from 1962 until 1964. Sampson was employed as a chemical at the Naval Air Weapons Station China Lake U.S. Naval Weapons Center, China Lake California, in the area of high energy solid propellants and case bonding materials for solid rocket motors. Sampson also served as the Director of Mission Development or Operations of the Space Test Program at the Aerospace Corporation in El Segundo, California. During his time with the Aerospace Corporation, Sampson led an engineering staff in the development and operation of several space satellites