@article{oai:repo.qst.go.jp:00043708, author = {Tanabe, Tetsumi and Noda, Kouji and et.al and 田邊 徹美 and 野田 耕司}, journal = {Physica Scripta}, month = {Oct}, note = {Electron-Biomolecular ion collisions were studied using an electrostatic storage ring with a merging beam technique for singly protonated peptides and multiply deprotonated DNA ions. The neutral-particle production rates according to collisions were measured. For peptides, resonant neutral-particle emissions were observed at a relative energy of 6.5 eV with a shoulder at around 9 eV. These resonances are deduced to come from electron capture and a subsequent cleavage of peptide bonds. For DNAs, neutral-particle emissions from definite threshold energies, which depend on the ion charges. The neutrals come from a break of DNAs, rather than electron detachment.}, pages = {268--270}, title = {Electron-Biomolecular Ion Collisions in an Electrostatic Storage Ring}, volume = {T110}, year = {2004} }