Ionization spectroscopy

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  • The characteristics lines in X-ray spectra result from electronic transitions between inner atomic orbitals. The X-ray spectra for most heavy elements are much simpler than the UV/Vis spectra observed in ICP-OES, for example. (Only a few lines!!!) Big difference between X-ray and UVVis: The radiation is ionizing, and doesn’t just excite electrons to higher levels. Moseley’s law: Predicts the basic relationship of atom number and the frequency of the characteristic lines

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  • The International Symposium on Nuclear Structure Physics (NP2001) was held in Gottingen Germany, March 5-8, 2001. The aim of the Symposium was to discuss recent achievements and new initiatives for research in nuclear structure and to celebrate the career of Peter von Brentano.

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  • Using chemical ionization mass spectrometry and photo- acoustic spectroscopy, we analysed the evolution of vola- tile organic compounds (VOCs) and other trace gases dur- ing an approximately one-week measurement period each in a pigsty and a sheep shed at the Federal Agricultural Research Centre (FAL) in Mariensee, Germany. When ac- tivities in the sheep shed were most intense during feeding hours and manure removal, concentration surges of VOCs were observed, which strongly correlated with methane and ammonia levels.

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