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A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data

Nentwich, Melanie

Abstract

Academic Talk for the Young Crystallographers Meeting in October 2025 at BESSY synchrotron in Berlin, Germany. The talk covers academic research, but focuses also on challenges and solutions in academic careers.

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A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data M. Nentwich YC @ BESSY, 2025-10-29 Outline Studies: Diplom (Applied) Mathematics PhD: Experimental Physics PostDoc # 1: Simulations & Beamline Scientist PostDoc # 2: Open Science and FAIR Data Conclusion YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 2/63 Studies: Diplom (Applied) Mathematics YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 3/63 Diplom Applied Mathematics >Diplom Mathematics ▶2005 −2006 ▶Universität Leipzig ▶drop out >Diplom Applied Mathematics ▶completed 2012 ▶TU Bergakademie Freiberg ▶subject: Structure determination of selected rare earth compounds using the DAFS method ▶interdisciplinary ▶combining synchrotron experiments (Exp. Phys.) with theoretical background (Analysis/Simulation) YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 4/63 Diplom Applied Mathematics >Diplom Mathematics ▶2005 −2006 ▶Universität Leipzig ▶drop out >Diplom Applied Mathematics ▶2006 −2012 ▶TU Bergakademie Freiberg ▶subject: Structure determination of selected rare earth compounds using the DAFS method ▶interdisciplinary ▶combining synchrotron experiments (Exp. Phys.) with theoretical background (Analysis/Simulation) YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 4/63 Diplom Applied Mathematics >Diplom Mathematics ▶2005 −2006 ▶Universität Leipzig ▶drop out >Diplom Applied Mathematics ▶2006 −2012 ▶TU Bergakademie Freiberg ▶subject: Structure determination of selected rare earth compounds using the DAFS method ▶interdisciplinary ▶combining synchrotron experiments (Exp. Phys.) with theoretical background (Analysis/Simulation) YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 4/63 Diplom Applied Mathematics Summary >2 beamtimes conducted >(re-)creating theory to calculate the energy-dependent intensity for a modulated crystal in a DAFS experiment ▶niche topic combined with a niche topic >Bernhard-von-Cotta Award ▶Network: supervisors nominated me >reduced BAföG repayment (best of year) ▶Lucky me: due overlengthy studies, I finished with the freshly modularised "guinea pigs": it was easy to be best among them >Lucky me: supervisor offered me a PhD position YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 5/63 Diplom Applied Mathematics Summary >2 beamtimes conducted >(re-)creating theory to calculate the energy-dependent intensity for a modulated crystal in a DAFS experiment ▶niche topic combined with a niche topic >Bernhard-von-Cotta Award ▶Network: supervisors nominated me >reduced BAföG repayment (best of year) ▶Lucky me: due overlengthy studies, I finished with the freshly modularised "guinea pigs": it was easy to be best among them >Lucky me: supervisor offered me a PhD position YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 5/63 Structure of Ho2PdSi3by DAFS >Ho2PdSi3 >based on simple, hexagonal HoSi2 >might have a 2×2×1or 2×2×8superstructure YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 6/63 PhD: Experimental Physics YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 9/63 PhD Time Dr. rer. nat. >defence 2020 >subject: Structure and properties of rare earth transition metal silicides >financing: ▶scholarship 2012 −2014 ▶five different 3rd party funded projects >6 beamtimes at DESY and approx. 6 at ESRF ▶many sleepless nights ▶a lots of unanalysed data >HERCULES →scholarship! ▶Lucky me: noone else applied for this TUBAF internal scholarship YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 10/63 PhD Time Dr. rer. nat. >2012 −2020 >subject: Structure and properties of rare earth transition metal silicides >financing: ▶scholarship 2012 −2014 ▶five different 3rd party funded projects contributed to all the proposals (and more) >6 beamtimes at DESY and approx. 6 at ESRF ▶many sleepless nights ▶a lots of unanalysed data >HERCULES →scholarship! ▶Lucky me: noone else applied for this TUBAF internal scholarship YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 10/63 PhD Time −Side Topics Side Topics >Crystallography >Pyroelectrics (e. g. SrTiO3, LiTaO3, …) >Battery Research >Supervision of the basic practical course in physics >Providing Training on L A T EX >Administrative project work, e. g. proposals, reports, news items YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 11/63 PhD Time −YC and DGK work YC and DGK work >2016 −2018: Chair >2018 −2023: Member of Wissenschaftskolleg ▶"Lucky me": I got volunteered :/ ▶Lucky me: no work to do >2020 −2022: Co-Initiator of the Special Issue ``Spotlight on Germany's Young Crystallographers'' >2017, 2020, 2022, 2023: Co-Organizer of YC Meetings >2020 −2022: Co-Initiator of the Digital Pub >Lucky me: my supervisors were fine with the volunteer work YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 12/63 PhD Time −YC and DGK work YC and DGK work >2016 −2018: Chair >2018 −2023: Member of Wissenschaftskolleg ▶"Lucky me": I got volunteered :/ ▶Lucky me: no work to do >2020 −2022: Co-Initiator of the Special Issue ``Spotlight on Germany's Young Crystallographers'' >2017, 2020, 2022, 2023: Co-Organizer of YC Meetings >2020 −2022: Co-Initiator of the Digital Pub >Lucky me: my supervisors were fine with the volunteer work YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 12/63 Review on R2TSi3 What about compounds related to Ho2PdSi3? Do they behave similarly? YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 13/63 Review on R2TSi3 Acta Cryst B 76(2) 177 (2020) YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 13/63 PostDoc # 1: Simulations & Beamline Scientist YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 14/63 PostDoc # 1 −The Story >DFG project in Freiberg approved, waiting for the start >meanwhile: consulting D. Novikov (beamline manager of P23, DESY) for finalising a manuscript Lucky me / Network: didn't care about the manuscript, but recommended me to see the open positions >Shock! Me at a beamline? Dealing with real tools? >Applying … with doubts, but I can back-off at any time >6 months of insecurity and doubts >Got it! Lucky me: I could choose between different options! >Accepted it! YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 15/63 Design of a spectroscopy beamline >for quick-EXAFS: X-ray source with broad & continuous spectrum >options: ▶Bending Magnet (not well compatible with 4th generation sources) ▶Tapered Undulator (sharper) ▶3-pole Wiggler (broader) >drawback: large divergence ▶at 19 m beamsize: 28 ×3 mm2 ▶at 19 m Photon Shutter: 12 ×6 mm2 50 0 50 long. coordinate of Wiggler / mm 0.8 0.4 0.0 0.4 vert. magn. field / T (a) 10 20 30 40 50 Energy / keV 1011 1012 flux density / ph/s/mm2/0.1%B.W. (b) (c) How much intensity is lost along the beamline? Sufficient intensity at sample (1012 photon/s)? YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 18/63 Constraints and Options >collimation needed! (focusing not allowed) >collimating optics: ▶lenses (beam too large, dispersive) ▶zone plates (beam too large, dispersive) ▶mirrors (also for large beams, non-dispersive) >important mirror parameters to define: ▶2 positions ▶4 shapes ▶6 lengths YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 19/63 Constraints and Options >collimation needed! (focusing not allowed) >collimating optics: ▶lenses (beam too large, dispersive) ▶zone plates (beam too large, dispersive) ▶mirrors (also for large beams, non-dispersive) >important mirror parameters to define: ▶2 positions ▶4 shapes ▶6 lengths YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 19/63 Constraints and Options >collimation needed! (focusing not allowed) >collimating optics: ▶lenses (beam too large, dispersive) ▶zone plates (beam too large, dispersive) ▶mirrors (also for large beams, non-dispersive) >important mirror parameters to define: ▶2 positions ▶4 shapes ▶6 lengths YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 19/63 Flux at sample 1011 1012 flux(photon/s) 1.8 mrad 9 keV 22 keV 2.0 mrad bent 1D 2.5 mrad 1011 1012 flux(photon/s) para 1D 1011 1012 flux(photon/s) para 2D 0 800 1200 mirror length (mm) 1011 1012 flux(photon/s) 0 800 1200 mirror length (mm) 0 800 1200 mirror length (mm) toro 2D 1011 1012 flux(photon/s) 1.8 mrad 9 keV 22 keV 2.0 mrad bent 1D 2.5 mrad 1011 1012 flux(photon/s) para 1D 1011 1012 flux(photon/s) para 2D 0 800 1200 mirror length (mm) 1011 1012 flux(photon/s) 0 800 1200 mirror length (mm) 0 800 1200 mirror length (mm) toro 2D Outside tunnel 1010 1011 1012 flux (photon/s) 1.8 mrad 9 keV 22 keV 2.0 mrad bent 1D 2.5 mrad 1010 1011 1012 flux (photon/s) para 1D 1010 1011 1012 flux (photon/s) para 2D 0 800 1200 mirror length (mm) 1010 1011 1012 flux (photon/s) 0 800 1200 mirror length (mm) 0 800 1200 mirror length (mm) toro 2D 1010 1011 1012 flux (photon/s) 1.8 mrad 9 keV 22 keV 2.0 mrad bent 1D 2.5 mrad 1010 1011 1012 flux (photon/s) para 1D 1010 1011 1012 flux (photon/s) para 2D 0 800 1200 mirror length (mm) 1010 1011 1012 flux (photon/s) 0 800 1200 mirror length (mm) 0 800 1200 mirror length (mm) toro 2D Inside tunnel >major remarks: ▶total flux at a beam size of 13×2 mm2 →focusing needed →Is it possible to focus complete beam onto sample? ▶simplified beamline model →not all beamline elements included (e. g. diamond windows) →further reduction by factor 10 >1012 photons/s not accomplished YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 20/63 Conclusion and Outlook >Beamline layout for AppAnaXAS >3-pole Wiggler unsuited to design a compatible XAFS beamline at PETRA IV >alternatively: tapered undulator >alternatively: at AppAnaXAS no quick-EXAFS (also intended for future P63 beamline) >advantages: more simple beamline layout and less costs YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 21/63 Conclusion and Outlook >Beamline layout for AppAnaXAS >3-pole Wiggler unsuited to design a compatible XAFS beamline at PETRA IV >alternatively: tapered undulator >alternatively: at AppAnaXAS no quick-EXAFS (also intended for future P63 beamline) >advantages: more simple beamline layout and less costs YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 21/63 PostDoc # 2: Open Science and FAIR Data YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 22/63 Job Applications >started searching 6 months before contract end >What do I want at all? >What qualities and skills do I have? indeed: 15 Professional Skills >Tough to find job descriptions that I can fulfill by at least 50 % >very depressing time >salary: expectation vs reality found kununu too late YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 23/63 Finally Found Something >scary: description focused on "Data Lake". What's that?! >interview went great >WissZeitVG doesn't let me finish the project. Lucky me: They still want me! >turns out: ▶the data lake is not too important ▶everything else is a match! •experience in the synchrotron (crystallography) community •existing DESY network (e. g. beamline managers) •organising/management skills from YC •structured working (mathematics) •basic programming skills (PhD and PostDoc #1) •willingness and ability to constantly learn YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 24/63 Many concerns If I disseminate my scientific work in open access, everyone will be able to use it without citing me >plagiarism is always a risk >reduced visibility due to technical/physical barriers Open access publishing is too costly for my institute In my field I have to choose a journal based only on the impact factor >free alternatives >Directory of Open Access Journals https://doaj.org/ >Projekt DEAL https://deal-konsortium.de/ YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 31/63 Many concerns If I disseminate my scientific work in open access, everyone will be able to use it without citing me >plagiarism is always a risk >reduced visibility due to technical/physical barriers Open access publishing is too costly for my institute In my field I have to choose a journal based only on the impact factor >free alternatives >Directory of Open Access Journals https://doaj.org/ >Projekt DEAL https://deal-konsortium.de/ YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 31/63 Many concerns If I disseminate my scientific work in open access, everyone will be able to use it without citing me >plagiarism is always a risk >reduced visibility due to technical/physical barriers Open access publishing is too costly for my institute In my field I have to choose a journal based only on the impact factor >free alternatives >Directory of Open Access Journals https://doaj.org/ >Projekt DEAL https://deal-konsortium.de/ YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 31/63 Legal and Ethical Aspects of Open Data >Intellectual Property ▶Copyright, Patents, Trade secrets, Trademark >Open Science mandates from the European Commission ▶"As open as possible, as closed as necessary" ▶European Open Science Cloud (EOSC) and FAIR >Industry-academic collaboration sensitivities ▶Industry make use of facilities for commercially sensitive investigations >GDPR, personal data, sensitive data ▶personal data: any data that can be used to directly or indirectly identify a person ▶GDPR: data collected for the given purpose ▶sensitive data: personal data, but also research "secrets" YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 32/63 Sensitive Data and AI Chatbots >Use all the help you can get! >All AI Chatbots lie! (hallucinate) >acknowledge their assistance, e. g. for paper writing >sensitive data (personal data, proposals, etc) could potentially be misused ▶save alternative: BLABALDOR ▶helmholtz-blablador.fz-juelich.de/ ▶no training on user data! ▶freely available for Helmholtz and partners YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 33/63 Sensitive Data and AI Chatbots >Use all the help you can get! >All AI Chatbots lie! (hallucinate) >acknowledge their assistance, e. g. for paper writing >sensitive data (personal data, proposals, etc) could potentially be misused ▶save alternative: BLABALDOR ▶helmholtz-blablador.fz-juelich.de/ ▶no training on user data! ▶freely available for Helmholtz and partners YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 33/63 Sensitive Data and AI Chatbots >Use all the help you can get! >All AI Chatbots lie! (hallucinate) >acknowledge their assistance, e. g. for paper writing >sensitive data (personal data, proposals, etc) could potentially be misused ▶save alternative: BLABALDOR ▶helmholtz-blablador.fz-juelich.de/ ▶no training on user data! ▶freely available for Helmholtz and partners YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 33/63 Sensitive Data and AI Chatbots >Use all the help you can get! >All AI Chatbots lie! (hallucinate) >acknowledge their assistance, e. g. for paper writing >sensitive data (personal data, proposals, etc) could potentially be misused ▶save alternative: BLABALDOR ▶helmholtz-blablador.fz-juelich.de/ ▶no training on user data! ▶freely available for Helmholtz and partners YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 33/63 Solutions to "Closed" Science Limited Access to Publications: Solutions to paywalled journals >pay the fee >join the peer community ResearchGate.net >use fully open access databases ▶refseek.com ▶science.gov ▶pdfdrive.com ▶base-search.net YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 34/63 Solutions to "Closed" Science Data Hoarding: Data not available due to concerns to lose competitive advantages >retrieve data from graphics doi:10.2307/20026073 >easy: millimeter paper >Danger! Inch paper! inch →1 /8 mm →1 /10 >What if there is no grid? >…scale is logarithmic? doi:10.1103/RevModPhys.33.92 YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 35/63 Solutions to "Closed" Science Software: Software used to produce results are not open source making it difficult to reproduce the plots and results in publications >creation of containers for (old) code to keep it running, e. g. fortran, lisp, cobol >docker YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 39/63 FAIR Data YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 40/63 Definition of FAIR YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 41/63 Definition of FAIR Findable https://www.go-fair.org/fair-principles/ F1: (Meta) data are assigned globally unique and persistent identifiers F2: Data are described with rich metadata F3: Metadata clearly and explicitly include the identifier of the data they describe F4: (Meta)data are registered or indexed in a searchable resource Accessible A1: (Meta)data are retrievable by their identifier using a standardised communication protocol A1.1: The protocol is open, free and universally implementable A1.2: The protocol allows for an authentication and authorisation procedure where necessary A2: Metadata should be accessible even when the data is no longer available YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 42/63 Definition of FAIR Interoperable https://www.go-fair.org/fair-principles/ I1: (Meta)data use a formal, accessible, shared, and broadly applicable language for knowledge representation I2: (Meta)data use vocabularies that follow the FAIR principles I3: (Meta)data include qualified references to other (meta)data Reusable R1: (Meta)data are richly described with a plurality of accurate and relevant attributes R1.1: (Meta)data are released with a clear and accessible data usage license R1.2: (Meta)data are associated with detailed provenance R1.3: (Meta)data meet domain-relevant community standards YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 43/63 Data Availability Bad Statement Data Availability Statement Data available on reasonable request to the authors. Good Statement Data Availability Statement The data support the findings of this study are openly available in Zenodo at https://doi.org/10.5281/zenodo.6993871, reference number 6993871. YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 44/63 PIDs and DOIs >PID −Persistent Identifier: permanent and unique link to the web >DOI −Digital Object Identifier ▶one implementation of a PID ▶originally for publications ▶now also for samples (IGSN ), instruments (PIDINST ), >ORCiD −PID for scientists >ROR −PID for organisations >A web address (URL) is not a PID because it is unique, but not permanent. >Make sure the data you want to cite has a DOI. >Cite the instrument, samples etc. you used. YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 45/63 Persistent Sample Identifier >IGSN: International Generic Sample Number >registration service for DAPHNE4NFDI partners >Publisher: Kiel University >official collaboration with Kiel >source code will soon be shared for adoption at other RIs IGSN at CAU Kiel YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 46/63 Data and Research Output everything you produced to come up with your findings including wordclouds.com YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 47/63 Data Repositories >storing data for citing, accessing, and archiving over the long term >provided by facilities or community >prefer data repositories used by your research community or host institution (e. g. Re3data ) >Zenodo provides a catch-all, fall-back repository YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 48/63 Choosing a Synchrotron Beamline Which beamline is appropriate for a certain scientific question? complicated question especially for new users with diverse backgrounds (biology, social sciences, …) YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 54/63 Choosing a Synchrotron Beamline ? ? ? ? Which synchrotrones exist? Whichs beamlines exist? What are the di�erences? What is an adequate experimental technique? Some useful answers: >webpage WayForLight (WFL) https://www.wayforlight.eu/ >projects RIANA, ReMade@ARI YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 55/63 Approach All DESY ETs in PaNET? ? BLs <-> ETs? ? YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 56/63 Approach DESY Beamline Infos DESY Experimental Techniques TTL All DESY ETs in PaNET? ? BLs <-> ETs? ? Web Search Beamline Interviews YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 56/63 Approach @ DESY DESY Beamline Infos DESY Experimental Techniques TTL OWL All DESY ETs in PaNET? ? BLs <-> ETs? ? Web Search Beamline Interviews YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 56/63 Approach @ DESY DESY Beamline Infos DESY Experimental Techniques TTL OWL Find a PETRA III beamline with PaNET ELM https://www.desy.de/~nentm/ All DESY ETs in PaNET? ? BLs <-> ETs? ? Web Search Beamline Interviews SPARQL queries input: ET ID Details of Beamlines Details of ET YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 56/63 Conclusion YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 57/63 Conclusion >some opportunities come by chance >prepare these chances, e. g. with a good network >everybody makes mistakes >be open to learn new things YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 58/63 Conclusion >some opportunities come by chance >prepare these chances, e. g. with a good network >everybody makes mistakes >be open to learn new things YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 58/63 Conclusion >some opportunities come by chance >prepare these chances, e. g. with a good network >everybody makes mistakes >be open to learn new things YC @ BESSY, 2025-10-29 M. Nentwich: A Journey through Applied Mathematics, Experimental Physics, Beamline Simulations, and FAIR data 58/63