发明名称 |
ARRANGEMENT FOR SCATTERING ELECTRONS |
摘要 |
<p>An arrangement is provided for scattering electrons in an electron accelerator capable of variable acceleration energies. The arrangement has two scattering foils arranged at a mutual spacing from one another along a direction of an electron beam. A first scattering foil in the beam direction has a constant thickness whereas a second scattering foil has a thickness which decreases from its center towards its margin. The first scattering foil comprises a set of foils each of which have a scattering capability which corresponds to a selectable acceleration energy. The appropriate member of the set is selected and placed in the beam as the first scattering foil so as to create a relatively constant intensity of radiation over a given volume. The second scattering foil, which is of a more costly and complex construction, remains unchanged in the electron beam.</p> |
申请公布号 |
CA1075834(A) |
申请公布日期 |
1980.04.15 |
申请号 |
CA19770286198 |
申请日期 |
1977.09.07 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
TAUMANN, LEONHARD |
分类号 |
A61B6/00;A61B6/03;A61N5/10;G21K1/10;(IPC1-7):01J3/00 |
主分类号 |
A61B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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