Luigi Puccianti (Italian: [luˈiːdʒi putˈtʃanti]; 11 June 1875 – 9 June 1952) was an Italian physicist.
[1] In 1899–1900, Puccianti constructed a highly sensitive spectrograph, with which he studied the infrared absorption of many compounds and attempted to correlate the spectra with molecular structure.
[2][3] He studied the emission spectra of metals and halogens and proposed measuring the wavelength of X-rays by using a diffraction grating at large angles of incidence.
Puccianti was, at one time, the academic advisor to Nobel Prize winner Enrico Fermi.
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