Rotating sample holder for random angle sampling in tomography
US12074007B2 · kind B2 · utility
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13References
15Claims
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Key dates
| Filing date | Jul 24, 2023 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Jul 24, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample holder retains a sample and can continuously rotate the sample in a single direction while the sample is exposed to a charged particle beam (CPB) or other radiation source. Typically, the CPB is strobed to produce a series of CPB images at random or arbitrary angles of rotation. The sample holder can rotate more than one complete revolution of the sample. The CPB images are used in tomographic reconstruction, and in some cases, relative rotation angles are used in the reconstruction, without input of an absolute rotation angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.