The electron's velocity direction through the magnetic mirror field for the low-light imaging system

YuanHe Tang; HaiYang Gao; YuFei Du; HanChen Liu; Kai Liu; MingJun Liu

doi:10.1117/12.790978

3 March 2008 The electron's velocity direction through the magnetic mirror field for the low-light imaging system

YuanHe Tang, HaiYang Gao, YuFei Du, HanChen Liu, Kai Liu, MingJun Liu

Proceedings Volume 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection; 662122 (2008) https://doi.org/10.1117/12.790978
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

In order to improve the detectability of low-light imaging CCD (charge coupled devices), we have brought forward a magnetic mirror device to apply to microchannel electron vase plate ((MEVP)) of low-light imaging system at room temperature. After introduced the principle of restricted electron in magnetic mirror field to accumulate enough time for low-light CCD imaging, magnetic intensity has been calculated discretionary position in the mirror, the formula of electron's velocity direction has been given through the throat of magnetic mirror in this paper. The educed electron's angle distribution between velocity direction and magnetic mirror axis has been simulated at 7-10 degree. This answers for the design needs of microchannel vase plate now. The electron's loop speckle imaging has been obtained by experiment; the result is same as theoretical value. It is proved that if the electrons educed by the magnetic mirror field at the same cone angle and approximate speed, the gain of microchannel plate will be more stable, so that it is favorable to reduce the noise of photoelectronic imaging.

Citation Download Citation

YuanHe Tang, HaiYang Gao, YuFei Du, HanChen Liu, Kai Liu, and MingJun Liu "The electron's velocity direction through the magnetic mirror field for the low-light imaging system", Proc. SPIE 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection, 662122 (3 March 2008); https://doi.org/10.1117/12.790978

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