Development of special rotor for centrifugal separation of isotopes in solid pure metals

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3184762· OSTI ID:22051025

Ono, Masao; Okayasu, Satoru; Hao, Ting ^[1]; Sueyoshi, Masanori ^[2]; Esaka, Fumitaka ^[3]; Osawa, Takahito ^[4]; Iguchi, Yusuke; Mashimo, Tsutomu ^[5]

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1. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195 (Japan)
2. Maruwa Electronic Inc., Shourenji, Chiba 277-0814 (Japan)
3. Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195 (Japan)
4. Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195 (Japan)
5. Shock Wave and Condensed Matter Research Center, Kumamoto University, Kurokami, Kumamoto 860-8555 (Japan)

A prototype rotor with two grooves for the multistage centrifugal isotope separation in solid state was developed to test a new idea. This idea is based on the sedimentation of constitutional atoms in solid. In the performance test using indium specimen, it is verified that the developed rotor can receive all injected molten-indium droplets from an automatic raw-material feeding system even at the high rotational speed of 97 000 rpm without the loss of rotational stability, and the received indium specimens can be transferred in/between two grooves through the plastic flow under the influence of strong centrifugal force even in the solid state. The isotope ratio of centrifuged indium specimens was analyzed employing the secondary ion mass spectrometry, and it is confirmed that intended isotope separation by the centrifugation is realized in the solid state. The developed rotor can be used to perform the isotope separation on at least solid metals under the conditions of up to 400 deg. C in specimen temperature and 0.4x10{sup 6}g in centrifugal force field.

• OSTI ID: 22051025
• Journal Information: Review of Scientific Instruments, Vol. 80, Issue 8; Other Information: (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
07 ISOTOPES AND RADIATION SOURCES
42 ENGINEERING
ATOMS
CENTRIFUGATION
DROPLETS
INDIUM
IONS
ISOTOPE RATIO
ISOTOPE SEPARATION
ISOTOPE SEPARATORS
MASS SPECTROSCOPY
PERFORMANCE TESTING
ROTORS
SEDIMENTATION
SOLIDS
STABILITY
TEMPERATURE RANGE 0400-1000 K
VELOCITY