Resolution characteristics of an 18-mm proximity-focused MCPI tube under narrow optical gate conditions

Anindita Behnke; Timothy J. Sammons

doi:10.1117/12.145773

1 January 1993 Resolution characteristics of an 18-mm proximity-focused MCPI tube under narrow optical gate conditions

Anindita Behnke, Timothy J. Sammons

Proceedings Volume 1801, 20th International Congress on High Speed Photography and Photonics; (1993) https://doi.org/10.1117/12.145773
Event: 20th International Congress on High Speed Photography and Photonics, 1992, Victoria, BC, Canada

Abstract

This paper reports the results of a study that empirically determined the gating time of an MCPI tube must be about eight times more than the iris time to prevent spatial resolution degradation. During the study, MTF curves were taken under dc conditions, as well as dynamic gating conditions from 1.6 microsecond(s) to 1 ns gate widths on a tube that has an iris time of 1.2 ns. Under dc conditions, the 50% MTF was 10 lp/mm; under dynamic conditions, the 50% MTF was 7 lp/mm from 1.6 microsecond(s) to 20 ns FWHM. However, when the gate width was reduced to 10 ns, the resolution began to decrease and became 5 lp/mm at 1.0 ns. The results of the experiment and the MTF measurement apparatus are discussed.

Citation Download Citation

Anindita Behnke and Timothy J. Sammons "Resolution characteristics of an 18-mm proximity-focused MCPI tube under narrow optical gate conditions", Proc. SPIE 1801, 20th International Congress on High Speed Photography and Photonics, (1 January 1993); https://doi.org/10.1117/12.145773

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