Ion-ion coincidence imaging at high event rate using an in-vacuum pixel detector. Furch, F. J., Durá, J., Tremsin, A. S., Vallerga, J., Schulz, C. P., Rouzée, A., & Vrakking, M. J. J. The Journal of Chemical Physics, 147(1):013919, July, 2017. Publisher: AIP Publishing LLC![Ion-ion coincidence imaging at high event rate using an in-vacuum pixel detector [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex A new ion-ion coincidence imaging spectrometer based on a pixelated complementary metal-oxide-semiconductor detector has been developed for the investigation of molecular ionization and fragmentation processes in strong laser fields. Used as a part of a velocity map imaging spectrometer, the detection system is comprised of a set of microchannel plates and a Timepix detector. A fast time-to-digital converter (TDC) is used to enhance the ion time-of-flight resolution by correlating timestamps registered separately by the Timepix detector and the TDC. In addition, sub-pixel spatial resolution (\textless6 μm) is achieved by the use of a center-of-mass centroiding algorithm. This performance is achieved while retaining a high event rate (104 per s). The spectrometer was characterized and used in a proof-of-principle experiment on strong field dissociative double ionization of carbon dioxide molecules (CO2), using a 400 kHz repetition rate laser system. The experimental results demonstrate that the spectrometer can de...
@article{Furch2017a,
title = {Ion-ion coincidence imaging at high event rate using an in-vacuum pixel detector},
volume = {147},
issn = {0021-9606},
url = {http://aip.scitation.org/doi/10.1063/1.4981126},
doi = {10.1063/1.4981126},
abstract = {A new ion-ion coincidence imaging spectrometer based on a pixelated complementary metal-oxide-semiconductor detector has been developed for the investigation of molecular ionization and fragmentation processes in strong laser fields. Used as a part of a velocity map imaging spectrometer, the detection system is comprised of a set of microchannel plates and a Timepix detector. A fast time-to-digital converter (TDC) is used to enhance the ion time-of-flight resolution by correlating timestamps registered separately by the Timepix detector and the TDC. In addition, sub-pixel spatial resolution ({\textless}6 μm) is achieved by the use of a center-of-mass centroiding algorithm. This performance is achieved while retaining a high event rate (104 per s). The spectrometer was characterized and used in a proof-of-principle experiment on strong field dissociative double ionization of carbon dioxide molecules (CO2), using a 400 kHz repetition rate laser system. The experimental results demonstrate that the spectrometer can de...},
number = {1},
urldate = {2017-05-02},
journal = {The Journal of Chemical Physics},
author = {Furch, Federico J. and Durá, Judith and Tremsin, Anton S. and Vallerga, John and Schulz, Claus Peter and Rouzée, Arnaud and Vrakking, Marc J. J.},
month = jul,
year = {2017},
note = {Publisher: AIP Publishing LLC},
keywords = {carbon compounds, microchannel plates, molecule-photon collisions, photoionisation},
pages = {013919},
}
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