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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dokania, A.K. Duerr, M. Lewalter, A. Merikhi, J. Berhanu, S. Bachmann, P.K. Zexiang Chen Wirth, T. Rupesinghe, N. Teo, K. Groning, O. |
| Copyright Year | 2010 |
| Description | Author affiliation: AIXTRON Ltd. Nanoinstruments, Cambridge, UK (Rupesinghe, N.; Teo, K.) || Eng. Dept., Cambridge Univ., Cambridge, UK (Wirth, T.) || Univ. of Electron. Sci. & Technol. of China (UESTC), Chengdu, China (Zexiang Chen) || EMPA, Thun, Switzerland (Groning, O.) || PHILIPS Res. Labs., Aachen, Germany (Dokania, A.K.; Duerr, M.; Lewalter, A.; Merikhi, J.; Berhanu, S.; Bachmann, P.K.) |
| Abstract | For devices such as next generation x-ray radiography equipment, a small x-ray spot along with fast switching is desired to obtain high resolution images. Since the intensity of the x-ray radiation is proportional to the emission current hitting the anode, a high current combined with a small focal spot of electron is desired for spatial resolution. To minimize the motion-induced blurring of images of moving organs such as heart, high temporal resolution is desired which in turns depends on the switching time of the x-ray sources. This combination of spatial and temporal resolution renders the conventional hot cathode less suitable due to its non-Gaussian beam and slow response time, respectively. Field emitters, especially carbon nanotube-based emitters, seem to meet the above requirements and have the potential to be ideal electron source for next generation x-ray tubes. |
| Starting Page | 111 |
| Ending Page | 112 |
| File Size | 514088 |
| Page Count | 2 |
| File Format | |
| ISBN | 9781424466450 |
| e-ISBN | 9781424466443 |
| DOI | 10.1109/IVESC.2010.5644448 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-10-14 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Roads Heating |
| Content Type | Text |
| Resource Type | Article |
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