Hildegard Stiller

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In solids random motions of atoms may take place in connection with disorder; for instance diffusion of interstitials in solid solutions or orientation fluctuations in molecular solids. Experimentally these motions are observed mostly by resonance and relaxation techni­ ques, by optical spectroscopy and, recently, by neutron spectroscopy. In comparison to(More)
The spectral radiance and irradiance of several common ophthalmic instruments were measured. The respective spectral retinal irradiance a patient might receive was calculated. To evaluate the potential light hazard to the patient's retina, we calculated the temperature rise resulting from light absorption at the fundus, compared retinal irradiance with(More)