Absolute calibration of a SPRED (Spectrometer Recording Extended Domain) EUV (extreme ultraviolet) spectrograph for use on the DIII-D tokamak

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:7108822

Wood, R D; Allen, S L

We have performed an absolute intensity calibration of a SPRED multichannel EUV spectrograph using synchrotron radiation from the NBS SURF-II electron storage ring. The calibration procedure and results for both a survey grating (450 g/mm) and a high-resolution (2100 g/mm) grating are presented. The spectrograph is currently in use on the DIII-D tokamak with a tangential line-of-sight at the plasma midplane. Data is first acquired and processed by a microcomputer; the absolute line intensities are then sent to the DIII-D database for comparison with data from other diagnostics. Representative data from DIII-D plasma operations will be presented. 6 refs., 3 figs., 1 tab.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7108822
• Report Number(s): UCRL-98278; CONF-880364-29; ON: DE88011317
• Resource Relation: Conference: 7. topical conference on high temperature plasma diagnostics, Napa, CA, USA, 13 Mar 1988
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
47 OTHER INSTRUMENTATION
DOUBLET REACTORS
PLASMA DIAGNOSTICS
SPECTROMETERS
CALIBRATION
IMPURITIES
MICROPROCESSORS
SURF II STORAGE RING
COMPUTERS
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
RADIATION SOURCES
STORAGE RINGS
SYNCHROTRON RADIATION SOURCES
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700102* - Fusion Energy- Plasma Research- Diagnostics
440300 - Miscellaneous Instruments- (-1989)