TY - JOUR
T1 - Simultaneous 3D coincidence imaging of cationic, anionic, and neutral photo-fragments
AU - Shahi, Abhishek
AU - Albeck, Yishai
AU - Strasser, Daniel
N1 - Publisher Copyright:
© 2018 Author(s).
PY - 2018/1
Y1 - 2018/1
N2 - We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F- + F photodissociation, F + F dissociative photodetachment, F+ + F dissociative ionization, and F+ + F+ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.
AB - We present the design and simulations of a 3D coincidence imaging spectrometer for fast beam photofragmentation experiments. Coincidence detection of cationic, neutral, and anionic fragments involves spectrometer aberrations that are successfully corrected by an analytical model combined with exact numerical simulations. The spectrometer performance is experimentally demonstrated by characterization of four different channels of intense 800 nm pulse interaction with F2-: F- + F photodissociation, F + F dissociative photodetachment, F+ + F dissociative ionization, and F+ + F+ coulomb explosion. Improved measurement of F2- photodissociation with a 400 nm photon allows a better determination of the F2- anion dissociation energy, 1.256 ± 0.005 eV.
UR - http://www.scopus.com/inward/record.url?scp=85041445875&partnerID=8YFLogxK
U2 - 10.1063/1.5004523
DO - 10.1063/1.5004523
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C2 - 29390661
AN - SCOPUS:85041445875
SN - 0034-6748
VL - 89
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 1
M1 - 013303
ER -