{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T01:35:33Z","timestamp":1773452133541,"version":"3.50.1"},"reference-count":14,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2023,3,23]],"date-time":"2023-03-23T00:00:00Z","timestamp":1679529600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["aapm.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Applied Clin Med Phys"],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>There are some motion platforms for radiotherapy quality assurance. However, no platform with two drive systems that can move along three axes is available.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The purpose of this study is to develop a dynamic motion platform with two drive systems capable of three\u2010axis motion and to evaluate its motion performance.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The developed moving platform had two drive systems that use the same equipment. Each axis of the platform used can support a maximum load of 10\u00a0kg. The motors for moving the platform in each direction are capable of a drive stroke up to 40\u00a0mm. The drive speed is 30\u00a0mm\/s at maximum load fluctuation. To evaluate the static positional accuracy of this system with an arbitrary input movement, the XYZ position of each axis was measured using a coordinate measuring machine operating from 0 to 40\u00a0mm at 10\u00a0mm intervals. In addition, the accuracy of dynamic motion was verified with Sine waveform inputs of different patterns to the three axes for approximately 60 s, and they were compared with the resulting detected signals by SyncTrax.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The two drive systems were successfully operated on three axes by using independent control systems. For static position, the accuracies were within 0.2\u00a0mm, 0.05\u00a0mm, and 0.14\u00a0mm for lateral, longitudinal, and vertical directions, respectively. For dynamic motion, the mean absolute errors in the X, Y, and Z axes between the platform inputs and SyncTrax detected signals were 0.14\u00a0\u00b1\u00a00.10\u00a0mm, 0.16\u00a0\u00b1\u00a00.12\u00a0mm, and 0.16\u00a0\u00b1\u00a00.11\u00a0mm, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>A new dynamic platform for radiation therapy with two drive systems capable of three\u2010axis motion was developed, and the positional accuracy of the drive axes was confirmed to be less than 0.2\u00a0mm.<\/jats:p><\/jats:sec>","DOI":"10.1002\/acm2.13971","type":"journal-article","created":{"date-parts":[[2023,3,23]],"date-time":"2023-03-23T11:23:53Z","timestamp":1679570633000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Development of a dynamic motion platform with two independent drive systems for radiotherapy"],"prefix":"10.1002","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8636-4045","authenticated-orcid":false,"given":"Masahide","family":"Saito","sequence":"first","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hideyuki","family":"Kawakami","sequence":"additional","affiliation":[{"name":"APEX medical Inc.  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0414-5218","authenticated-orcid":false,"given":"Toshihiro","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"},{"name":"Department of Radiology Kasugai\u2010CyberKnife Rehabilitation Hospital  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidekazu","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Koji","family":"Ueda","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6540-2906","authenticated-orcid":false,"given":"Hikaru","family":"Nemoto","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoki","family":"Sano","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Onishi","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Yamanashi  Yamanashi Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,3,23]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"Computerized Imaging Reference Systems Inc U. 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