| 摘要 |
A high-voltage power supply unit having electrical components encased in insulating casings which are biodegradable. The insulating casings comprise several superimposed layers, joined together, of sheets of paper, the number of layers being chosen in order to obtain the desired amount of electrical insulation to suit the strength of the electric field surrounding the insulated electrical components when the unit is in operation. This has a application to providing power to X-ray sources.
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