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Sub‐nanometre quality X‐ray mirrors created using ion beam figuring.

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Title: Sub‐nanometre quality X‐ray mirrors created using ion beam figuring.
Authors: Majhi, Arindam1 (AUTHOR), Shurvinton, Riley1 (AUTHOR), Pradhan, Paresh Chandra1 (AUTHOR), Hand, Matthew1 (AUTHOR), Gu, Weichen1,2 (AUTHOR), Da Silva, Murilo Bazan1 (AUTHOR), Moriconi, Simone1 (AUTHOR), Nistea, Ioana1 (AUTHOR), Alcock, Simon G.1 (AUTHOR), Wang, Hongchang1 (AUTHOR) hongchang.wang@diamond.ac.uk, Sawhney, Kawal1 (AUTHOR)
Source: Journal of Synchrotron Radiation. Jul2024, Vol. 31 Issue 4, p706-715. 10p.
Subjects: International Boxing Federation (IBF), X-rays, Light sources, Angular measurements, Ion sources, Ion beams, Speckle interference, Mirrors
Abstract: Ion beam figuring (IBF) is a powerful technique for figure correction of X‐ray mirrors to a high accuracy. Here, recent technical advancements in the IBF instrument developed at Diamond Light Source are presented and experimental results for figuring of X‐ray mirrors are given. The IBF system is equipped with a stable DC gridded ion source (120 mm diameter), a four‐axis motion stage to manipulate the optic, a Faraday cup to monitor the ion‐beam current, and a camera for alignment. A novel laser speckle angular measurement instrument also provides on‐board metrology. To demonstrate the IBF system's capabilities, two silicon X‐ray mirrors were processed. For 1D correction, a height error of 0.08 nm r.m.s. and a slope error of 44 nrad r.m.s. were achieved. For 2D correction over a 67 mm × 17 mm clear aperture, a height error of 0.8 nm r.m.s. and a slope error of 230 nrad r.m.s. were obtained. For the 1D case, this optical quality is comparable with the highest‐grade, commercially available, X‐ray optics. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Sub‐nanometre quality X‐ray mirrors created using ion beam figuring.
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  Data: <searchLink fieldCode="AR" term="%22Majhi%2C+Arindam%22">Majhi, Arindam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shurvinton%2C+Riley%22">Shurvinton, Riley</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pradhan%2C+Paresh+Chandra%22">Pradhan, Paresh Chandra</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hand%2C+Matthew%22">Hand, Matthew</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gu%2C+Weichen%22">Gu, Weichen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Da+Silva%2C+Murilo+Bazan%22">Da Silva, Murilo Bazan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moriconi%2C+Simone%22">Moriconi, Simone</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nistea%2C+Ioana%22">Nistea, Ioana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alcock%2C+Simon+G%2E%22">Alcock, Simon G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Hongchang%22">Wang, Hongchang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hongchang.wang@diamond.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Sawhney%2C+Kawal%22">Sawhney, Kawal</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Label: Abstract
  Group: Ab
  Data: Ion beam figuring (IBF) is a powerful technique for figure correction of X‐ray mirrors to a high accuracy. Here, recent technical advancements in the IBF instrument developed at Diamond Light Source are presented and experimental results for figuring of X‐ray mirrors are given. The IBF system is equipped with a stable DC gridded ion source (120 mm diameter), a four‐axis motion stage to manipulate the optic, a Faraday cup to monitor the ion‐beam current, and a camera for alignment. A novel laser speckle angular measurement instrument also provides on‐board metrology. To demonstrate the IBF system's capabilities, two silicon X‐ray mirrors were processed. For 1D correction, a height error of 0.08 nm r.m.s. and a slope error of 44 nrad r.m.s. were achieved. For 2D correction over a 67 mm × 17 mm clear aperture, a height error of 0.8 nm r.m.s. and a slope error of 230 nrad r.m.s. were obtained. For the 1D case, this optical quality is comparable with the highest‐grade, commercially available, X‐ray optics. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1107/S1600577524004594
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 706
    Subjects:
      – SubjectFull: International Boxing Federation (IBF)
        Type: general
      – SubjectFull: X-rays
        Type: general
      – SubjectFull: Light sources
        Type: general
      – SubjectFull: Angular measurements
        Type: general
      – SubjectFull: Ion sources
        Type: general
      – SubjectFull: Ion beams
        Type: general
      – SubjectFull: Speckle interference
        Type: general
      – SubjectFull: Mirrors
        Type: general
    Titles:
      – TitleFull: Sub‐nanometre quality X‐ray mirrors created using ion beam figuring.
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            – D: 01
              M: 07
              Text: Jul2024
              Type: published
              Y: 2024
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              Value: 31
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            – TitleFull: Journal of Synchrotron Radiation
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