Spectrometer sensitivity calibration in the extreme uv by means of branching ratios of magnetic dipole lines

Technical Report · Sun Apr 01 00:00:00 EST 1984

DOI:https://doi.org/10.2172/6959376· OSTI ID:6959376

Denne, B; Hinnov, E

Relative intensity measurements of various line pairs resulting from magnetic dipole transitions within the configurations s/sup 2/p/sup 2/ and s/sup 2/p/sup 4/, in conjunction with calculated transition probabilities, have been used to determine the wavelength dependence of the sensitivity of a grazing incidence spectrometer, in the range 400 to 1000 A. Emissions from Cr XIX, Fe XXI, Ni XXI and XXIII, Cu XXIV, and Zr XXVII ions in PLT tokamak discharges were used for this purpose. Absolute sensitivity of the spectrometer at selected wavelengths had been determined by the traditional hydrogen, helium, carbon, and oxygen electric-dipole line pairs from the same discharges. Similar attempts to use transitions in the s/sup 2/p/sup 3/ configurations in Cr XVIII, Zr XXVI, and Mo XXVIII ions resulted in significant discrepancies that are ascribed to uncertainties in the corresponding calculated transition probabilities.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6959376
• Report Number(s): PPPL-2096; ON: DE84010752
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLT DEVICES
EXTREME ULTRAVIOLET RADIATION
SPECTROMETERS
CALIBRATION
BRANCHING RATIO
CHROMIUM IONS
COPPER IONS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
IRON IONS
MOLYBDENUM IONS
NICKEL IONS
ZIRCONIUM IONS
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
IONS
MEASURING INSTRUMENTS
RADIATIONS
SPECTRA
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
ULTRAVIOLET RADIATION
700104* - Fusion Energy- Plasma Research- Plasma Kinetics-Experimental- (-1987)