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Title: Upper wide-angle viewing system for ITER

Abstract

The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. Here, this paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.

Authors:
 [1];  [1]; ORCiD logo [2];  [2];  [2];  [2];  [3];  [3];  [3]; ORCiD logo [3];  [4];  [4]
+ Show Author Affiliations
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. General Atomics, San Diego, CA (United States)
  3. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  4. TNO, Delft (Netherlands)
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1365654
Grant/Contract Number:  
AC02-09CH11466; AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 11; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Mirrors; Cameras; Infrared optics; Infrared detectors; Emissivity

Citation Formats

Lasnier, C. J., McLean, A. G., Gattuso, A., O’Neill, R., Smiley, M., Vasquez, J., Feder, R., Smith, M., Stratton, B., Johnson, D., Verlaan, A. L., and Heijmans, J. A. C. Upper wide-angle viewing system for ITER. United States: N. p., 2016. Web. doi:10.1063/1.4960489.
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Lasnier, C. J., McLean, A. G., Gattuso, A., O’Neill, R., Smiley, M., Vasquez, J., Feder, R., Smith, M., Stratton, B., Johnson, D., Verlaan, A. L., & Heijmans, J. A. C. Upper wide-angle viewing system for ITER. United States. https://doi.org/10.1063/1.4960489
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Lasnier, C. J., McLean, A. G., Gattuso, A., O’Neill, R., Smiley, M., Vasquez, J., Feder, R., Smith, M., Stratton, B., Johnson, D., Verlaan, A. L., and Heijmans, J. A. C. Mon . "Upper wide-angle viewing system for ITER". United States. https://doi.org/10.1063/1.4960489. https://www.osti.gov/servlets/purl/1365654.
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@article{osti_1365654,
title = {Upper wide-angle viewing system for ITER},
author = {Lasnier, C. J. and McLean, A. G. and Gattuso, A. and O’Neill, R. and Smiley, M. and Vasquez, J. and Feder, R. and Smith, M. and Stratton, B. and Johnson, D. and Verlaan, A. L. and Heijmans, J. A. C.},
abstractNote = {The Upper Wide Angle Viewing System (UWAVS) will be installed on five upper ports of ITER. Here, this paper shows major requirements, gives an overview of the preliminary design with reasons for some design choices, examines self-emitted IR light from UWAVS optics and its effect on accuracy, and shows calculations of signal-to-noise ratios for the two-color temperature output as a function of integration time and divertor temperature. Accurate temperature output requires correction for vacuum window absorption vs. wavelength and for self-emitted IR, which requires good measurement of the temperature of the optical components. The anticipated signal-to-noise ratio using presently available IR cameras is adequate for the required 500 Hz frame rate.},
doi = {10.1063/1.4960489},
journal = {Review of Scientific Instruments},
number = 11,
volume = 87,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1063/1.4960489
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Cited by: 5 works
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Works referenced in this record:

A dual-band adaptor for infrared imaging
journal, May 2012

  • McLean, A. G.; Ahn, J-W.; Maingi, R.
  • Review of Scientific Instruments, Vol. 83, Issue 5
  • DOI: 10.1063/1.4717672

1024 × 1024 pixel mid-wavelength and long-wavelength infrared QWIP focal plane arrays for imaging applications
journal, March 2005

  • Gunapala, S. D.; Bandara, S. V.; Liu, J. K.
  • Semiconductor Science and Technology, Vol. 20, Issue 5
  • DOI: 10.1088/0268-1242/20/5/026
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    • Hu, Chaoquan; Liu, Jian; Wang, Jianbo
    • Light: Science & Applications, Vol. 7, Issue 4
    • DOI: 10.1038/lsa.2017.175
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