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SUMMARY:MicroMAX - A beamline with time-resolved macromolecular crystallog
 raphy capabilities at the MAX IV Laboratory
DTSTART;VALUE=DATE-TIME:20250922T173000Z
DTEND;VALUE=DATE-TIME:20250922T174000Z
DTSTAMP;VALUE=DATE-TIME:20260526T203234Z
UID:indico-contribution-1865@lindico453.srv.lu.se
DESCRIPTION:Speakers: Jie Nan et al (MAX IV Laboratory)\nThe rise of 4th g
 eneration sources\, including the MAX IV Laboratory 3 GeV ring\, has enabl
 ed new possibilities to study dynamics using crystallography. The MicroMAX
  beamline is a new beamline focussed on providing optimal X-ray characteri
 stics for serial (SSX) and time-resolved (TR-SSX) crystallography at MAX I
 V [1]. The beamline emphasizes a flexible sample environment for standard 
 and bespoke experimental setups while also supporting high-throughput sing
 le crystal data collections at the BioMAX beamline which has operated sinc
 e 2017 [2]. \nThe MicroMAX user program opened in May 2024 and has perform
 ed experiments with SPINE-based fixed targets\, high-viscosity extrusion a
 nd microfluidics and single-crystal oscillation data collections. Sample h
 andling and positioning is supported by the MD3-up micro diffractometer\, 
 Oxford cryojet\, and ISARA automated sample mounting platform (including c
 rystallization plates). Time resolved techniques are enabled by a nanoseco
 nd pump laser (210-2600 nm)\, Celerotron X-ray chopper (0\,8-70% duty cycl
 e) and one of either an Eiger2 X 9M CdTe photon counting hybrid pixel dete
 ctor or Jungfrau 9M Si integrating hybrid pixel detector (on-loan from PSI
 ). \nOptical elements allow for a beamline flux from 10^13 photons/s (0.1%
  bandwidth double crystal monochromator) to more than 10^14 photons/s (1% 
 bandwidth multilayer monochromator) with an optimal 1x1 μm beam focus usi
 ng beryllium lenses/K-B mirrors. Beamline controls are from within MXCuBE\
 , with additional live feedback and CrystFEL autoprocessing pipelines to p
 rovide immediate feedback and rapid map generation. Sample pre-characteriz
 ation is supported by an offline laser and spectroscopy lab in the seconda
 ry experimental hutch and dedicated sample environment and preparation lab
 s.\nHere we present the current status of MicroMAX beamline and recent dev
 elopments in sample preparation and data handling under a variety of exper
 imental contexts. This work emphasizes the technical developments for a hi
 ghly flexible TR-SSX end station in context of SSX/TR-SSX experiments alre
 ady being conducted by the MicroMAX user community.\n\nMicroMAX is funded 
 by the Novo Nordisk Foundation under the grant number NNF17CC0030666.\n\n[
 1] Gonzalez\, A.\, Krojer\, T.\, Nan\, J.\, Bjelcic\, M.\, Aggarwal\, S.\,
  Gorgisyan\, I.\, Milas\, M.\, Eguiraun\, M.\, Casadei\, C.\, Chenchiliyan
 \, M.\, Jurgilaitis\, A.\, Kroon\, D.\, Ahn\, B.\, Ekstrom\, J. C.\, Aurel
 ius\, O.\, Lang\, D.\, Ursby\, T. & Thunnissen\, M. M. G. M. (2025). J. Sy
 nchrotron Rad. 32.\n[2] Shilova\, A.\, Lebrette\, H.\, Aurelius\, O.\, Nan
 \, J.\, Welin\, M.\, Kovacic\, R.\, Ghosh\, S.\, Safari\, C.\, Friel\, R. 
 J.\, Milas\, M.\, Matej\, Z.\, Högbom\, M.\, Brändén\, G.\, Kloos\, M.\
 , Shoeman\, R. L.\, Doak\, B.\, Ursby\, T.\, Håkansson\, M.\, Logan\, D. 
 T. & Mueller U. (2020). J. Synchrotron Rad.\, 27\, 1095.\n\nhttps://lindic
 o453.srv.lu.se/event/583/contributions/1865/
LOCATION:LINXS at The Loop
URL:https://lindico453.srv.lu.se/event/583/contributions/1865/
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