K{beta} spectra of heliumlike iron from TFTR plasmas

Technical Report · Tue Dec 01 00:00:00 EST 1992

DOI:https://doi.org/10.2172/10114661· OSTI ID:10114661

Smith, A J ^[1]; Bitter, M; Hsuan, H; Hill, K W; von Goeler, S; Timberlake, J ^[2]; Beiersdorfer, P; Osterheld, A ^[3]

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1. Lock Haven University, Lock Haven, PA (United States)
2. Princeton Univ., NJ (United States). Plasma Physics Lab.
3. Lawrence Livermore National Lab., CA (United States)

K{beta} spectra of helium-like iron, Fe XXV, have been observed from TFTR plasmas with a high-resolution crystal spectrometer. The wavelength range of the Fe K{beta} spectrum partially overlaps the spectrum of helium-like nickel (Ni XXVII), which is used on TFTR and JET for ion temperature measurements. The experimental arrangement made it possible to observe the Fe XXV K{beta} lines and their satellite transitions of the type 1s2l{prime}31{double_prime} {yields} 1s{sup 2}21{prime}, as well as the entire satellite spectrum of the Ni XXVII K {alpha} line simultaneously. In order to identify the features of the K{beta} spectra and to study their possible interference with the Ni XXVII spectrum, the intensity of the K{beta} spectrum was enhanced by injection of iron into the plasma. Accurate wavelengths and intensities have been obtained and compared with different theoretical calculations.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073; W-7405-ENG-48
• OSTI ID: 10114661
• Report Number(s): PPPL-2873; ON: DE93005730
• Resource Relation: Other Information: PBD: Dec 1992
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
TFTR TOKAMAK
PLASMA DIAGNOSTICS
IRON IONS
TEMPERATURE MEASUREMENT
SPECTRA
ION TEMPERATURE
ELECTRON TEMPERATURE
ELECTRON DENSITY
700320
664200
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
SPECTRA OF ATOMS AND MOLECULES AND THEIR INTERACTIONS WITH PHOTONS