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Crystal transit through the X-ray beam

SH Susannah Holmes
HK Henry J. Kirkwood
RB Richard Bean
KG Klaus Giewekemeyer
AM Andrew V. Martin
MH Marjan Hadian-Jazi
MW Max O. Wiedorn
DO Dominik Oberthür
HM Hugh Marman
LA Luigi Adriano
NA Nasser Al-Qudami
SB Saša Bajt
IB Imrich Barák
SB Sadia Bari
JB Johan Bielecki
SB Sandor Brockhauser
MC Mathew A. Coleman
FC Francisco Cruz-Mazo
CD Cyril Danilevski
KD Katerina Dörner
AG Alfonso M. Gañán-Calvo
RG Rita Graceffa
HF Hans Fanghor
MH Michael Heymann
MF Matthias Frank
AK Alexander Kaukher
YK Yoonhee Kim
BK Bostjan Kobe
JK Juraj Knoška
TL Torsten Laurus
RL Romain Letrun
LM Luis Maia
MM Marc Messerschmidt
MM Markus Metz
TM Thomas Michelat
GM Grant Mills
SM Serguei Molodtsov
DM Diana C. F. Monteiro
AM Andrew J. Morgan
AM Astrid Münnich
GM Gisel E. Peña Murillo
GP Gianpietro Previtali
AR Adam Round
TS Tokushi Sato
RS Robin Schubert
JS Joachim Schulz
MS Megan Shelby
CS Carolin Seuring
JS Jonas A. Sellberg
MS Marcin Sikorski
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The distance travelled by the crystal through the X-ray beam can be calculated based on the jet speed (see Table 1) and beam size. Using the upper limit on the measured size of the lysozyme crystals (i.e., 8 × 8 × 8 µm3) and the lowest possible jet speed (accounting for a 5% uncertainty—see Table 1) gives the minimum distance a single crystal could travel whilst still interacting with two consecutive X-ray pulses, spaced 886 ns apart. Assuming that at least 1 µm of the crystal needs to interact with the X-ray beam to generate a diffraction pattern, the minimum distance travelled by a single crystal hit twice by the XFEL beam was calculated. For the fastest jets, multi-hits were only possible in the presence of the maximum FW of the beam.

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