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Spectrum with peaks labelled taken with an Ocean Optics HR2000 spectrometer [1] of ambient light provided by fluorescent lamps. Spectrum taken by me. The spectrometer appears to be about ~.6 to .8 nm off judging from the location of known peaks. Interpretation of spectral peaks has been done using the NIST database of spectra for mercury [2], a paper on the photoluminescent properties of Eu:Y₂O₃ [3], also here [4] and here[5], and an article on fluorescent light phosphors [6]. This spectrum is not calibrated for intensity.

• Note that the terbium could be either Tb³⁺, Ce³⁺:LaPO₄ or Tb³⁺:CeMgAl₁₁O₁₉.

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