Charged particle radiation apparatus
US9734983B2 · kind B2 · utility
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3References
8Claims
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Assignee
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Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/0216
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a charged particle radiation apparatus including a soundproof cover that highly realizes both suppression of image defects due to a specific frequency and improvement in quake resistance. A charged particle radiation apparatus including a box-shaped soundproof cover having a plurality of wall surfaces, the soundproof cover including a plurality of columnar bodies forming a frame of the box shape body and a box-shaped acoustic energy absorbing structure provided in a connecting part of the plurality of columnar bodies and attached to support at least the two columnar bodies, is proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.