Einstein coefficients, cross sections, f values, dipole moments, and all that, Am. J. of Phys. 50, 982 (1982), arXiv:physics/0202029v1 原子スペクトル線 量子力学における総和則
{\displaystyle T_{a}} = 受信機の入力におけるソース(アンテナなど)の等価雑音温度[K] T r x {\displaystyle T_{rx}} = 受信機の入力を見た時の受信機の等価雑音温度[K] B = 帯域幅[Hz] S o N o {\displaystyle {\frac
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