{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T19:53:26Z","timestamp":1792785206218,"version":"4.5.0"},"reference-count":46,"publisher":"AIP Publishing","issue":"9","funder":[{"DOI":"10.13039\/100015668","name":"Laserlab-Europe","doi-asserted-by":"publisher","award":["871124"],"award-info":[{"award-number":["871124"]}],"id":[{"id":"10.13039\/100015668","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Czech Republic\u2019s Ministry of Education, Youth and Sports Projects","award":["LM2023068"],"award-info":[{"award-number":["LM2023068"]}],"id":[{"id":"https:\/\/ror.org\/037n8p820","id-type":"ROR","asserted-by":"crossref"}]},{"name":"Grant Agency of Czech Republic","award":["23\u201305027M"],"award-info":[{"award-number":["23\u201305027M"]}]},{"name":"Grant Agency of Czech Republic","award":["25-16893S"],"award-info":[{"award-number":["25-16893S"]}]},{"name":"EUROfusion","award":["101052200"],"award-info":[{"award-number":["101052200"]}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:p>Real-time online diagnostics are essential for high-repetition-rate laser\u2013plasma experiments, offering clear advantages over traditional, manually exchanged offline detectors, such as imaging plates, by eliminating the shot-to-shot processing time. Scintillator based detectors are widely used to measure bremsstrahlung radiation from laser\u2013matter interactions, enabling the characterization of hot-electron distributions. In this study, we present absolute calibration of a lutetium\u2013yttrium oxyorthosilicate crystal-based multilayer scintillator stack spectrometer performed at the MT25 microtron facility in Prague. Bremsstrahlung radiation was generated by irradiating a tungsten converter with monoenergetic electron beams in the energy range between 5 MeV and 22\u00a0MeV. The response of the individual crystal was measured and compared with the energy deposition calculated using the Fluktuierende Kaskade (FLUKA) Monte Carlo simulation. A linear correlation between signal response and energy deposition was obtained for all crystals within the experimental uncertainty, confirming detector linearity with the calibration factor 0.014 \u00b1 0.002 ADU\/keV (where ADU denotes the analog-to-digital unit). This calibration enables quantitative, real-time measurement of bremsstrahlung spectra and is valuable for particle acceleration, high-intensity laser\u2013plasma experiments, laboratory astrophysics, warm dense matter, and inertial confinement fusion studies.<\/jats:p>","DOI":"10.1063\/5.0342332","type":"journal-article","created":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T12:40:59Z","timestamp":1790772059000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Absolutely calibrated scintillator stack spectrometer for high-intensity laser\u2013plasma experiments"],"prefix":"10.1063","volume":"97","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0140-2859","authenticated-orcid":false,"given":"S.","family":"Agarwal","sequence":"first","affiliation":[{"name":"Faculty of Mathematics and Physics, Charles University 1 , Ke Karlovu 3, 12116 Prague,","place":["Czech Republic"]},{"name":"Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences 2 , Na Slovance 2, 18221 Prague,","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5754-2431","authenticated-orcid":false,"given":"S.","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences 2 , Na Slovance 2, 18221 Prague,","place":["Czech Republic"]},{"name":"Institute of Plasma Physics, Czech Academy of Sciences 3 , U Slovanky 2525\/1a, 18200 Prague,","place":["Czech Republic"]},{"name":"Faculty of Electrical Engineering, Czech Technical University in Prague 4 , Technick\u00e1 2, 16627 Prague,","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3773-8356","authenticated-orcid":false,"given":"P.","family":"Devi","sequence":"additional","affiliation":[{"name":"Faculty of Mathematics and Physics, Charles University 1 , Ke Karlovu 3, 12116 Prague,","place":["Czech Republic"]},{"name":"Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences 2 , Na Slovance 2, 18221 Prague,","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0784-4145","authenticated-orcid":false,"given":"M.","family":"Krupka","sequence":"additional","affiliation":[{"name":"Department of Radiation and Chemical Physics, Institute of Physics, Czech Academy of Sciences 2 , Na Slovance 2, 18221 Prague,","place":["Czech Republic"]},{"name":"Institute of Plasma Physics, Czech Academy of Sciences 3 , U Slovanky 2525\/1a, 18200 Prague,","place":["Czech Republic"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7671-0901","authenticated-orcid":false,"given":"A. 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