Displayed background gamma radiation level is 9.8 Î¼R/h (0.82 mSv/a) This is very close to the world average background radiation of 0.87 mSv/a from cosmic and terrestrial sources. Displays showing ambient radiation fields of 0.120-0.130 Î¼Sv/h (1.05-1.14 mSv/a) in a nuclear power plant.This reading includes natural background from cosmic and terrestrial sources, but excludes any contribution from contamination in the air, food, and water.isplays showing ambient radiation fields of 0.120-0.130 Î¼Sv/h (1.05-1.14 mSv/a) in a nuclear power plant. This reading includes natural background from cosmic and terrestrial sources, but excludes any contribution from contamination in the air, food, and water.
In some countries, the more senior rank of Commodore is also included. In others Lieutenant-Commanders, as equivalents to army and marine Majors, are considered senior officers. Commonwealth air force senior officer ranks include Group Captain, Wing Commander, and Squadron Leader, where such ranks are still used.
Typically, five-star officers hold the rank of general of the army, admiral of the fleet, field marshal, marshal of the air force, general of the air force, and several other similarly named ranks.Five-star ranks are extremely senior-usually the highest ranks.n times of peace, it is usually held only as an honorary rank. Despite the rarity and seniority of five-star officers, even more senior ranks have been adopted in the United States, namely, admiral of the navy and general of the armies.