| 摘要 |
An x-ray tube enabling to efficiently take out low energy x-rays is disclosed which has a structure excellent in durability. The x-ray tube comprises a silicon foil having a thickness of 3-30 mum as a part of the container main body. The silicon foil is directly or indirectly bonded to an airtight container while covering an opening of the airtight container, and serves as a beam-transmitting window.
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