Improved ion beam tools for ultraprecision figure correction of curved aluminum mirror surfaces (Erratum)

Jens Bauer; Melanie Ulitschka; Fred Pietag; Thomas Arnold

doi:10.1117/1.JATIS.4.4.049801

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30 November 2018 Improved ion beam tools for ultraprecision figure correction of curved aluminum mirror surfaces (Erratum)

Jens Bauer, Melanie Ulitschka, Fred Pietag, Thomas Arnold

Author Affiliations +

J. of Astronomical Telescopes, Instruments, and Systems, 4(4), 049801 (2018). https://doi.org/10.1117/1.JATIS.4.4.049801

Abstract

This erratum corrects an error in an equation.

This article [J. Astron. Telesc. Instrum. Syst. 4(4), 046003 (2018), doi: 10.1117/1.JATIS.4.4.046003] was originally published with an error in an equation.

Equation 1 originally appeared as

Eq. (1)

J (x, y) = \frac{1}{2 π σ} I_{total} \cdot e^{[- \frac{1}{2 σ^{2}} (x^{2} + y^{2})]}

The equation has been corrected to

Eq. (1)

J (x, y) = \frac{1}{2 π σ^{2}} I_{total} \cdot e^{[- \frac{1}{2 σ^{2}} (x^{2} + y^{2})]}

All online versions of the article were corrected on 15 November 2018. The article appears correctly in print.

Citation Download Citation

Jens Bauer, Melanie Ulitschka, Fred Pietag, and Thomas Arnold "Improved ion beam tools for ultraprecision figure correction of curved aluminum mirror surfaces (Erratum)," Journal of Astronomical Telescopes, Instruments, and Systems 4(4), 049801 (30 November 2018). https://doi.org/10.1117/1.JATIS.4.4.049801

Published: 30 November 2018

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KEYWORDS

Aluminum

Ion beams

Mirrors

Astronomical telescopes

Manufacturing

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