| 378 / | HD | X-RAY OR GAMMA RAY SYSTEMS OR DEVICES | 
| 1 | DF | SPECIFIC APPLICATION {14} | 
| 4 | DF | .~ Computerized tomography {13} | 
| 11 |  | .~.~ Source or detector translation within plane {3} | 
| 12 | DF | .~.~.~> With electronic scanning | 
| 13 | DF | .~.~.~> Radial | 
| 14 | DF | .~.~.~> Fan beam translation |