{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T16:35:57Z","timestamp":1778085357654,"version":"3.51.4"},"reference-count":33,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2020,6,2]],"date-time":"2020-06-02T00:00:00Z","timestamp":1591056000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100010661","name":"Horizon 2020 Framework Programme","doi-asserted-by":"publisher","award":["project CALIPSOplus under the Grant Agreement 730872"],"award-info":[{"award-number":["project CALIPSOplus under the Grant Agreement 730872"]}],"id":[{"id":"10.13039\/100010661","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Characteristic dimensions and evolution times of regions of secondary electronic excitations created by the interaction of ionizing radiation with matter cannot be measured directly. At the same time these are essential parameters both for engineering of nanostructured composite materials defining optimal layer thickness and nanoparticles radii and for the development of optimized scintillators. The paper demonstrates how such spatial and temporal data can be extracted from luminescence decay kinetics excited by vacuum ultraviolet (VUV) and X-ray photons at modern sources of synchrotron radiation MAX IV and PETRA III. Specific features of energy-band structure of self-activated crystal CeF3 are discussed, and its potential for a super-fast detection of ionizing radiation evaluated. Diffusion-controlled dipole\u2013dipole interaction of Frenkel excitons is demonstrated to account well for the luminescence non-exponential decay kinetics providing information on the scales of excited regions created by photons of different energy. For 20 eV photons the radius of excited regions is estimated to be 10 nm, and for 200 eV photons it increases to 18 nm. Effective radius of excited regions of complicated shape created by 19 keV is as large as 80 nm and the diffusion length of Frenkel excitons over radiative time is 14 nm.<\/jats:p>","DOI":"10.3390\/sym12060914","type":"journal-article","created":{"date-parts":[[2020,6,3]],"date-time":"2020-06-03T04:12:09Z","timestamp":1591157529000},"page":"914","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Decay Kinetics of CeF3 under VUV and X-ray Synchrotron Radiation"],"prefix":"10.3390","volume":"12","author":[{"given":"Irina","family":"Kamenskikh","sequence":"first","affiliation":[{"name":"Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1(2), 119991 Moscow, Russia"}]},{"given":"Evgeny","family":"Tishchenko","sequence":"additional","affiliation":[{"name":"Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory 1(2), 119991 Moscow, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1833-6894","authenticated-orcid":false,"given":"Marco","family":"Kirm","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, W. Ostwald str. 1, 50411 Tartu, Estonia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9440-1718","authenticated-orcid":false,"given":"Sergey","family":"Omelkov","sequence":"additional","affiliation":[{"name":"Institute of Physics, University of Tartu, W. Ostwald str. 1, 50411 Tartu, Estonia"}]},{"given":"Andrei","family":"Belsky","sequence":"additional","affiliation":[{"name":"CELIA, CNRS-CEA-University of Bordeaux, 33405 Talence, France"}]},{"given":"Andrey","family":"Vasil\u2019ev","sequence":"additional","affiliation":[{"name":"Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskie Gory 1(2), 119991 Moscow, Russia"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1109\/TRPMS.2017.2756674","article-title":"Pushing the limits in time-of-flight PET imaging","volume":"1","author":"Lecoq","year":"2017","journal-title":"IEEE Trans. Radiat. Plasma Med. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1109\/TNS.2013.2282232","article-title":"Can transient phenomena help improving time resolution in scintillators?","volume":"61","author":"Lecoq","year":"2014","journal-title":"IEEE Trans. Nucl. Sci."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Korzhik, M., Tamulaitis, G., and Vasil\u2019ev, A.N. (2020). Physics of Fast Processes in Scintillators, Springer Nature Switzerland AG.","DOI":"10.1007\/978-3-030-21966-6"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.nima.2017.02.041","article-title":"Shape of intrinsic alpha pulse height spectra in lanthanide halide scintillators","volume":"857","author":"Wolszczak","year":"2017","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.nima.2017.12.080","article-title":"Time-resolved gamma spectroscopy of single events","volume":"886","author":"Wolszczak","year":"2018","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.radmeas.2019.02.004","article-title":"Scintillator energy resolution and a way to improve it by kinetic waveform analysis","volume":"122","author":"Gektin","year":"2019","journal-title":"Radiat. Meas."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Gektin, A., Vasilev, A., Suzdal, V., and Sobolev, A. (2020). Energy resolution of scintillators in connection with track structure. IEEE Trans. Nucl. Sci.","DOI":"10.1109\/TNS.2020.2978236"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1063\/1.1619352","article-title":"Prompt and delayed secondary excitons in rare-gas solids","volume":"29","author":"Kirm","year":"2003","journal-title":"Low Temp. Phys."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"3534","DOI":"10.1021\/jz401864w","article-title":"Estimation of the electron thermalization length in ionic materials","volume":"4","author":"Belsky","year":"2013","journal-title":"J. Phys. Chem. Lett."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"367","DOI":"10.1016\/S0168-9002(96)00806-6","article-title":"Extensive studies on cef3 crystals, a good candidate for electromagnetic calorimetry at future accelerators","volume":"383","author":"Auffray","year":"1996","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"470","DOI":"10.1016\/0009-2614(93)80170-T","article-title":"Time-resolved luminescence of CeF3 crystals excited by X-ray synchrotron radiation","volume":"206","author":"Pedrini","year":"1993","journal-title":"Chem. Phys. Lett."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"225","DOI":"10.1557\/PROC-348-225","article-title":"Fluorescence properties of CeF3 and some other cerium doped crystals and glasses under VUV and X-ray synchrotron excitation","volume":"348","author":"Pedrini","year":"1994","journal-title":"Mater. Res. Soc. Symp. Proc."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/S0022-2313(96)00161-5","article-title":"VUV excitation of intrinsic luminescence of ionic crystals with complicated band structure. Simulation","volume":"72","author":"Belsky","year":"1997","journal-title":"J. Lumin."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"488","DOI":"10.1016\/S0925-8388(98)00378-8","article-title":"Simulation of energy conversion and transfer in CeF3 after VUV photon absorption","volume":"275","author":"Glukhov","year":"1998","journal-title":"J. Alloys Compd."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"497","DOI":"10.1088\/0953-8984\/8\/4\/014","article-title":"Luminescence quenching studies of CeF3 and CeF3-LaF3 by mean of nanosecond time-resolved VUV spectroscopy","volume":"8","author":"Terekhin","year":"1996","journal-title":"J. Phys. Condens. Matter"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.nima.2017.04.002","article-title":"FinEstBeaMS\u2014A wide-range Finnish-Estonian beamline for materials science at the 1.5 GeV storage ring at the MAX IV laboratory","volume":"859","author":"Sankari","year":"2017","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.radmeas.2018.12.011","article-title":"Progress in development of a new luminescence setup at the FinEstBeAMS beamline of the MAX IV laboratory","volume":"121","author":"Pankratov","year":"2019","journal-title":"Radiat. Meas."},{"key":"ref_18","unstructured":"(2020, May 01). P23 In-situ and Nano X-ray Diffraction Beamline. Available online: https:\/\/photon-science.desy.de\/facilities\/petra_iii\/beamlines\/p23_in_situ_and_nano_x_ray_diffraction\/index_eng.html."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"570","DOI":"10.1107\/S1600577517017660","article-title":"FemtoMAX\u2014An X-ray beamline for structural dynamics at the short-pulse facility of MAX IV","volume":"25","author":"Enquist","year":"2018","journal-title":"J. Synchrotron Radiat."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1016\/j.jlumin.2018.02.027","article-title":"Scintillation yield of hot intraband luminescence","volume":"198","author":"Omelkov","year":"2018","journal-title":"J. Lumin."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"116613","DOI":"10.1016\/j.jlumin.2019.116613","article-title":"Light yield of scintillating nanocrystals under X-ray and electron excitation","volume":"215","author":"Turtos","year":"2019","journal-title":"J. Lumin."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1016\/j.nima.2018.02.074","article-title":"Precise rise and decay time measurements of inorganic scintillators by means of X-ray and 511 keV excitation","volume":"891","author":"Gundacker","year":"2018","journal-title":"Nucl. Instrum. Methods Phys. Res. A"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"13908","DOI":"10.1103\/PhysRevB.56.13908","article-title":"Direct excitation of impurity ions by hot photoelectrons in wide-gap crystals","volume":"56","author":"Feldbach","year":"1997","journal-title":"Phys. Rev. B"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/0368-2048(96)02823-X","article-title":"Luminescence quenching as a probe for the local density of electronic excitations in insulators","volume":"79","author":"Belsky","year":"1996","journal-title":"J. Electron Spectros. Relat. Phenomena"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1143\/JPSJ.22.779","article-title":"Effects of Diffusion on Energy Transfer by Resonance","volume":"22","author":"Yokota","year":"1967","journal-title":"J. Phys. Soc. Jpn."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1103\/PhysRevB.8.54","article-title":"Multiphonon Relaxation of Rare-Earth Ions in Yttrium Orthoaluminate","volume":"8","author":"Weber","year":"1973","journal-title":"Phys. Rev. B"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1016\/j.jlumin.2015.06.014","article-title":"Temperature-dependent nonradiative energy transfer from Gd3+ to Ce3+ ions in co-doped LuAG: Ce, Gd garnet scintillators","volume":"167","author":"Onderisinova","year":"2015","journal-title":"J. Lumin."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.optmat.2019.02.011","article-title":"Excitation density effects in luminescence properties of CaMoO4 and ZnMoO4","volume":"90","author":"Spassky","year":"2019","journal-title":"Opt. Mater."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"233103","DOI":"10.1103\/PhysRevB.79.233103","article-title":"Exciton-exciton interactions in CdWO4 irradiated by intense femtosecond vacuum ultraviolet pulses","volume":"79","author":"Kirm","year":"2009","journal-title":"Phys. Rev. B"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"245901","DOI":"10.1088\/0953-8984\/25\/24\/245901","article-title":"Band tail absorption saturation in CdWO4 with 100 fs laser pulses","volume":"25","author":"Laasner","year":"2013","journal-title":"J. Phys. Condens. Matter"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.radmeas.2019.02.021","article-title":"Time-resolved luminescence z-scan of CsI using power femtosecond laser pulses","volume":"124","author":"Belsky","year":"2019","journal-title":"Radiat. Meas."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"125117","DOI":"10.1103\/PhysRevB.87.125117","article-title":"Nonlinear quenching of densely excited states in wide-gap solids","volume":"87","author":"Grim","year":"2013","journal-title":"Phys. Rev. B"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1054","DOI":"10.1109\/TNS.2007.914367","article-title":"From luminescence non-linearity to scintillation non-proportionality","volume":"55","year":"2008","journal-title":"IEEE Trans. Nucl. Sci."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/12\/6\/914\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:34:49Z","timestamp":1760175289000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/12\/6\/914"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,6,2]]},"references-count":33,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2020,6]]}},"alternative-id":["sym12060914"],"URL":"https:\/\/doi.org\/10.3390\/sym12060914","relation":{},"ISSN":["2073-8994"],"issn-type":[{"value":"2073-8994","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,6,2]]}}}