Photoionization of Acetylene Doped in Helium Nanodroplets by EUV Synchrotron Radiation

Suddhasattwa Mandal,Hemkumar Srinivas,Robert Richter,Ram Gopal,Vandana Sharma,Bhas Bapat,Alessandro D’Elia,Marcello Coreno,S R Krishnan,Marcel Mudrich

doi:10.1007/978-981-13-9969-5_22

Photoionization of Acetylene Doped in Helium Nanodroplets by EUV Synchrotron Radiation

Suddhasattwa Mandal, Hemkumar Srinivas + Show 8 more

https://doi.org/10.1007/978-981-13-9969-5_22

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Publication Date: Jan 1, 2019

Affiliation: Indian Institute of Science Education and Research Pune, Max Planck Institute for Nuclear Physics, Elettra-Sincrotrone Trieste S.C.p.A., TIFR Centre for Interdisciplinary Sciences, Indian Institute of Technology Hyderabad, University of Trieste, Institute of Structure of Matter, Indian Institute of Technology Madras, Aarhus University

#Electron Velocity Map Imaging #Helium Nanodroplets + Show 8 more

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Abstract

Photoionization process of acetylene doped in helium nanodroplets is studied with EUV synchrotron radiation with photon energies between 20 and 26 eV by Photoelectron-Photoion Coincidence (PEPICO) experiment by detecting photoelectrons in coincidence with the photoions using electron velocity map imaging (VMI) spectrometer and ion time of flight (TOF) spectrometer. Acetylene is ionized in the droplet via Penning ionization at 21.6 eV photon energy. For photon energy of 23.9 eV and above the photoionization threshold of He, charge transfer ionization occurs in acetylene following autoionization and direct ionization in the droplet respectively.

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