{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T06:11:22Z","timestamp":1783923082815,"version":"3.55.0"},"reference-count":28,"publisher":"IOP Publishing","issue":"3","license":[{"start":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T00:00:00Z","timestamp":1783900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T00:00:00Z","timestamp":1783900800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["82192883"],"award-info":[{"award-number":["82192883"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["U25A20202"],"award-info":[{"award-number":["U25A20202"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Radiol. Prot."],"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The MATROSHKA-R experiment conducted onboard the International Space Station provided invaluable data on depth-dose distributions for critical human organs exposed to the low Earth orbit (LEO) radiation environment. In this study, a high-fidelity computational model of a tissue-equivalent spherical phantom and a refined geometric representation of the Zvezda module were developed using the Geant4 Monte Carlo toolkit. In contrast to previous studies that relied on simplified cylindrical crew module models, our approach successfully and simultaneously reproduced the measured dose distributions in both the surface pocket detectors and the internal container detectors of the phantom. By correlating phantom depths with anatomical organ positions, organ-specific absorbed doses and dose equivalents were estimated. Simulations revealed that galactic cosmic rays contribute over 60% of the total dose equivalent across all organs, with contribution increasing with depth and reaching up to 81% at specific internal positions. The simulated organ dose equivalents showed close agreement with empirical data, validating the spherical phantom\u2019s utility for organ-level radiation studies. This work provides a more realistic computational basis for interpreting MATROSHKA-R measurements, and establishes a validated framework for future organ-level dosimetry studies in low-Earth orbit.<\/jats:p>","DOI":"10.1088\/1361-6498\/ae850d","type":"journal-article","created":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T15:07:26Z","timestamp":1783004846000},"page":"031509","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Dose simulation for the MATROSHKA-R experiment onboard the international space station using a high-fidelity model of the Zvezda module"],"prefix":"10.1088","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-2314-7730","authenticated-orcid":true,"given":"Desong","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangyan","family":"Shen","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kun","family":"Zhu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qing","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hua","family":"Li","sequence":"additional","affiliation":[{"name":"China Institute for Radiation Protection"},{"name":"Shanxi Key Laboratory for Radiation Safety and Protection"},{"name":"CNNP Nuclear Power Operations Management Co., Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liye","family":"Liu","sequence":"additional","affiliation":[{"name":"China Institute for Radiation Protection"},{"name":"Shanxi Key Laboratory for Radiation Safety and Protection"},{"name":"CNNP Nuclear Power Operations Management Co., Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9465-335X","authenticated-orcid":true,"given":"Congchong","family":"Yan","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University"},{"name":"China Institute for Radiation Protection"},{"name":"Shanxi Key Laboratory for Radiation Safety and Protection"},{"name":"CNNP Nuclear Power Operations Management Co., Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2026,7,13]]},"reference":[{"key":"jrpae850dbib1","doi-asserted-by":"publisher","first-page":"250","DOI":"10.1016\/S0168-9002(03)01368-8","type":"journal-article","article-title":"Geant4\u2014a simulation toolkit","volume":"506","author":"Agostinelli","year":"2003","journal-title":"Nucl. 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Published on behalf of SRP by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2025-11-19","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-06-30","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-07-13","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}