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对两种光栅成像光谱仪在通光效率、杂散光、准直及像差等的比较。对其不同的成像品质进行探讨。 相似文献
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Upon heating, Mn atoms implanted into Na - beta- alumina diffuse inwards andoutwards with an activation energy of 0.96 eV, and substitute for Al3+ in the spinel layers of the crystal. For specimens annealed at 900 C, the optical absorption shows remarkable change in 190nm-400nm wavelength region. They fluoresce brightly green and a well- defined peak (at 525 nm) has been found in the radiative spectra. 相似文献
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