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@ARTICLE{Banerjee:632797,
author = {Banerjee, Sourav and Jurek, Zoltan and Jin, Rui and Son,
Sang-Kil and Santra, Robin},
title = {{I}mpact of ionization potential depression on single
particle imaging},
journal = {Physical review research},
volume = {8},
number = {1},
issn = {2643-1564},
address = {College Park, MD},
publisher = {APS},
reportid = {PUBDB-2025-02222},
pages = {013025},
year = {2026},
abstract = {Ultraintense and ultrashort x-ray free-electron laser
(XFEL) pulses promise single particle imaging (SPI) via
enabling collection of diffraction data for nanocrystals, or
nano-size nonperiodic objects before the destruction of the
sample. Photoionization and subsequent processes lead to
plasma generation within the sample in such experiments. The
continuum energy levels of electrons for atoms and atomic
ions are lowered due to plasma screening, also known as
ionization potential depression (IPD). We theoretically
investigate the plasma formation and the effect of IPD in
the context of SPI with calculations performed on bulk
glycine, mimicking the interior of irradiated biological
macromolecules, e.g., proteins or viruses. To simulate the
plasma formation dynamics, we employ a nonequilibrium,
hybrid quantum-classical approach, combined with the
evaluation of the transient IPD from first-principles
electronic structure calculations considering the
time-dependent microscopic environment, which in earlier
work was applied to a solid-density plasma consisting of a
single atomic species [Phys. Rev. E 106, 015206 (2022)].
Here, this approach is extended to more than one atomic
species for applications to biological macromolecules in SPI
studies. Our work quantifies the effect and importance of
IPD in XFEL-based imaging of biological systems and provides
further guidance for simulations of electronic radiation
damage dynamics toward successful SPI experiments.},
cin = {FS-CFEL-3 / CFEL-DESYT},
ddc = {530},
cid = {I:(DE-H253)FS-CFEL-3-20120731 /
I:(DE-H253)CFEL-DESYT-20160930},
pnm = {631 - Matter – Dynamics, Mechanisms and Control
(POF4-631) / DFG project G:(GEPRIS)390715994 - EXC 2056:
CUI: Tiefe Einblicke in Materie (390715994)},
pid = {G:(DE-HGF)POF4-631 / G:(GEPRIS)390715994},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
doi = {10.1103/6vbz-cxkn},
url = {https://bib-pubdb1.desy.de/record/632797},
}