Spectroscopic measurement of impurity ion behavior in the GAMMA10 tandem mirror

1999 ◽  
Vol 70 (1) ◽  
pp. 332-335 ◽  
Author(s):  
K. Ikeda ◽  
Y. Nagayama ◽  
T. Itoh ◽  
E. Kawamori ◽  
Y. Okamoto ◽  
...  
Keyword(s):  
Spectroscopic Measurement ◽  
Tandem Mirror ◽  
Impurity Ion

Polarization of impurity ion emission lines from the GAMMA 10 tandem mirror plasma

2000 ◽  
Vol 43 (1) ◽  
pp. L9-L15 ◽  
Author(s):  
T Inoue ◽  
M Nakai ◽  
A Tanaka ◽  
K Kawakami ◽  
A Iwamae ◽  
...  
Keyword(s):  
Emission Lines ◽  
Tandem Mirror ◽  
Ion Emission ◽  
Impurity Ion

Spectroscopic Measurement in the Tandem Mirror Gamma 10 for Plasma Confinement and Impurity Diagnostics

1999 ◽  
Vol 35 (1T) ◽  
pp. 273-277 ◽  
Author(s):  
Masayuki Yoshikawa ◽  
Kalsunori Ikeda ◽  
Yuuji Okamoto ◽  
Eiichiro Kawamori ◽  
Shinji Kobayashi ◽  
...  
Keyword(s):  
Spectroscopic Measurement ◽  
Plasma Confinement ◽  
Tandem Mirror

Spectroscopic Measurement of Air Plasma Flow Generated by 10kW Class ICP Heater

2019 ◽  
Vol 67 (2) ◽  
pp. 42-48
Author(s):  
Mayuko Tanaka ◽  
Kazuhiko Yamada ◽  
Yusuke Takahashi ◽  
Minghao Yu ◽  
Asei Tezuka
Keyword(s):  
Plasma Flow ◽  
Spectroscopic Measurement ◽  
Air Plasma

scholarly journals IRTS: Infrared Telescope in Space

1990 ◽  
Vol 123 ◽  
pp. 215-222
Author(s):  
Toshio Matsumoto
Keyword(s):  
Focal Plane ◽  
Near Infrared ◽  
Space Shuttle ◽  
Spectroscopic Measurement ◽  
Small Space ◽  
Valuable Data ◽  
Infrared Telescope ◽  
Wide Wavelength Range ◽  
Infrared Sources ◽  
Very High

AbstractIRTS is a small cryogenically cooled telescope onboard the small space platform SFU (Space Flyer Unit). SFU will be launched with the new Japanese HII rocket on January 1994 and retrieved by the space shuttle.The IRTS telescope has an aperture of only 15 cm diameter, but is optimized to observe diffuse extended infrared sources. Four focal plane instruments are being developed under collaboration between Japan and the U.S.A. IRTS covers a wide wavelength range from near-infrared to submillimeter region, and has a capability for the spectroscopic measurement. Due to newly developed detectors, the sky will be surveyed with very high sensitivities. IRTS will provide valuable data on cosmology, galactic structure, cosmic dust, etc.

scholarly journals Study on the Effect and Mechanism of Impurity Aluminum on the Solvent Extraction of Rare Earth Elements (Nd, Pr, La) by P204-P350 in Chloride Solution

Minerals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 61
Author(s):  
Wenjie Zhang ◽  
Xian Xie ◽  
Xiong Tong ◽  
Yunpeng Du ◽  
Qiang Song ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solvent Extraction ◽  
Rare Earth Elements ◽  
Organic Phase ◽  
Extraction Process ◽  
Industrial Applications ◽  
Separation And Purification ◽  
Aluminum Ion ◽  
Hydrochloric Acid Medium ◽  
Impurity Ion

Solvent extraction is the most widely used method for separation and purification of rare earth elements, and organic extractants such as di(2-ethylhexyl) phosphoric acid (P204) and di(1-methyl-heptyl) methyl phosphonate (P350) are most commonly used for industrial applications. However, the presence of impurity ions in the feed liquid during extraction can easily emulsify the extractant and affect the quality of rare earth products. Aluminum ion is the most common impurity ion in the feed liquid, and it is an important cause of emulsification of the extractant. In this study, the influence of aluminum ion was investigated on the extraction of light rare earth elements by the P204-P350 system in hydrochloric acid medium. The results show that Al3+ competes with light rare earths in the extraction process, reducing the overall extraction rate. In addition, the Al3+ stripping rate is low and there is continuous accumulation of Al3+ in the organic phase during the stripping process, affecting the extraction efficiency and even causing emulsification. The slope method and infrared detection were utilized to explore the formation of an extraction compound of Al3+ and the extractant P204-P350 that entered the organic phase as AlCl[(HA)2]2P350(o).

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