略語大辞典 [Phys] 17 TR transition radiation 通過発光. 荷電粒子が媒質を通過して真空へ抜けるときに生じる発光.transition radiation; produced by a charged particle passing from a single medium to vacuum interface; has a continuous spectrum with frequencies up to γω, where γ is the ratio of the particle energy to the rest energy 丸善「略語大辞典」JLogosID : 11854249