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'''Great job! I capitalized the title so they are consistent. 20/20'''

Works
Dr. Lineberger published over 250 publications throughout his career. His earliest textbook contribution was in 1964, when he published “Collision Phenomena in Ionized Gases.” In 1966, Dr. Lineberger’s two-part paper on “Absolute cross sections for single ionization of alkali ions by electron impact” was published in the Physical Review. The paper was based on experiments and measurements that were also the basis of his Ph.D. Thesis. Dr. Lineberger conducted these experiments in collaboration with John Hooper under the guidance of Earl McDaniel, Professor of Electrical Engineering and Physics at the Georgia Institute of Technology.

Dr. Lineberger then went on to publish the “Chemical and Biochemical Applications of Lasers” and “Advances in Mass Spectrometry” in the 1970s. Later in his career, after having made many scientific contributions to the field of quantum chemistry, Dr. Lineberger published chapters in “Femtochemistry and Femtobiology: Ultrafast Reaction Dynamics at Atomic-Scale Resolution” in 1966, and in “The Physics and Chemistry of Clusters” in 2000.

His most recognizable publications were based on his research on Negative Ion Photoelectron Spectroscopy. Dr. Lineberger pioneered the instrument to perform photoelectron spectroscopy (PES). The negative ions, formed at an ion source, are pulled into a high vacuum region and pass through a mass filter to be mass analyzed. The apparatus is able to analyze the energy of electrons after they have been photodetached from the crossing of a negative ion beam and an ion laser.

Dr. Lineberger published three papers on studies he conducted using this technique in 1986 alone. Furthermore, these initial publications went on to become the basis of the periodic table of atomic electron affinities, that is now found in general chemistry textbooks all over the world. Since then, photoelectron spectroscopy has been the foundation of a substantial portion of Dr. Lineberger’s research.