A Framework for Assumption-Free Assessment of Imperfect Geometry of a Linac C-Arms
| Authors | |
|---|---|
| Year of publication | 2018 |
| Type | Article in Periodical |
| Magazine / Source | ADVANCES IN APPLIED CLIFFORD ALGEBRAS |
| MU Faculty or unit | |
| Citation | |
| Web | https://doi.org/10.1007/s00006-018-0873-8 |
| Doi | http://dx.doi.org/10.1007/s00006-018-0873-8 |
| Keywords | Radiotherapy; Geometric algebra; Linac |
| Description | In the present paper a general setup for the determination of imperfect geometry of radiotherapeutic devices has been proposed that is based on a geometric algebra framework. To account for this imperfect geometry, two methods of a calibration were presented, consisting of determining for each angular position of a gantry a correction shift which must be applied to the origin of a laboratory frame of reference to place it along a radiation axis for this angular position. Closed form solutions for these corrections are provided. |
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