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Preliminary design of a tangentially viewing imaging bolometer for NSTX-U

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4955278· OSTI ID:1368172
 [1];  [2];  [3];  [3];  [4];  [3];  [1];  [3];  [5];  [4]
  1. National Inst. for Fusion Science, Toki (Japan); Graduate Univ. for Advance Studies (SOKENDAI), Toki (Japan)
  2. National Inst. for Quantum and Radiological Science and Technology, Naka, Ibaraki (Japan)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  5. Dutch Foundation for Fundamental Research on Matter (FOM), Eindhoven (The Netherlands). Dutch Inst. for Fundamental Energy Research (DIFFER)
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The InfraRed imaging Video Bolometer measures plasma radiated power images using a thin metal foil. Two different designs with a tangential view of NSTX-U are made assuming a 640 x 480 (1280 x 1024) pixel, 30 (105) fps, 50 (20) mK, IR camera imaging the 9 cm x 9 cm x 2 μm Pt foil. The foil is divided into 40 x 40 (64 x 64) IRVB channels. This gives a spatial resolution of 3.4 (2.2) cm on the machine mid-plane. The noise equivalent power density of the IRVB is given as 113 (46) μW/cm2 for a time resolution of 33 (20) ms. Synthetic images derived from SOLPS data using the IRVB geometry show peak signal levels ranging from ~0.8 - ~80 (~0.36 - ~26) mW/cm2.
Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
National Institute for Fusion Science (Japan); National Institutes for Natural Sciences (Japan); USDOE
Grant/Contract Number:
AC02-09CH11466; AC05-00OR22725
OSTI ID:
1368172
Alternate ID(s):
OSTI ID: 22596563
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 87; ISSN 0034-6748; ISSN RSINAK
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (10)

3D Edge Modeling and Island Divertor Physics journal April 2004
Bolometric imaging of detached plasmas in LHD journal August 2011
Calibration and sensitivity of the infrared imaging video bolometer journal March 2003
Calibration of a thin metal foil for infrared imaging video bolometer to estimate the spatial variation of thermal diffusivity using a photo-thermal technique journal May 2014
In situ calibration of an infrared imaging video bolometer in the Large Helical Device journal November 2014
Progress toward commissioning and plasma operation in NSTX-U journal June 2015
Simulation of the Edge Plasma in Tokamaks journal January 2004
The EIRENE and B2-EIRENE Codes journal February 2005
Research and Development of Imaging Bolometers journal January 2007
Foil Calibration for IR Imaging Bolometer by Laser Irradiation journal January 2012

Cited By (1)

Signal to noise ratio of upgraded imaging bolometer for KSTAR journal October 2018

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