Research Article
Design Analysis and Experimental Study of Robotic Chair for Proton Heavy Ion Radiotherapy
Table 3
The adjustment parameter of chin positioning block.
| Position | Proximal low point | Proximal high point | Distal low point | Distal high point |
| Calculating coordinates | (0, 165.0, 145.0) | (0, 165.0, 162.0) | (0, 235.0, 145.0) | (0, 235.0, 162.0) |
| Location description | Chin positioning block at the proximal low point | Chin positioning block at the proximal high point | Chin positioning block at the distal low point | Chin positioning block at the distal high point |
| Measurement diagram | | | | |
| Measuring coordinates | (1.5, 167.0, 143.5) | (-1.5, 167.5, 161.0) | (1.0, 234.5, 143.0) | (0.5, 235.0, 160.5) |
| Error (mm) | | 1.5 | -1.5 | 1.0 | 0.5 | | 2.0 | 2.5 | -0.5 | 0 | | 1.5 | -1.0 | -2.0 | -1.5 |
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