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Journal Articles

Mechanism of flashing phenomena by microwave heating and influence of high dielectric constant solution

Fujita, Shunya*; Abe, Yutaka*; Kaneko, Akiko*; Yuasa, Tomohisa*; Segawa, Tomoomi; Kato, Yoshiyuki; Kawaguchi, Koichi; Ishii, Katsunori

Proceedings of 11th Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS-11) (Internet), 7 Pages, 2018/11

Mixed uranium oxide and plutonium oxide powder is produced from uranyl nitrate and plutonium nitrate mixed solution by the microwave heating denitration method in the spent fuel reprocessing process. Since the microwave heating method is accompanied by a boiling phenomenon, it is necessary to fully grasp the operating conditions in order to avoid flashing and spilling in the mass production of denitrification technology for the future. In this research, it was clarified that the heat transfer coefficient became lower as the dielectric constant increased. The dominant factor of the blowing up phenomena is supposed to be generation of the innumerable bubble rather than bubble's growth.

Journal Articles

Magnetic and dielectric properties of frustrated ferrimagnet TmFe$$_{2}$$O$$_{4}$$

Yoshii, Kenji; Ikeda, Naoshi*; Nakamura, Akio

Physica B; Condensed Matter, 378-380, p.585 - 586, 2006/05

 Times Cited Count:39 Percentile:80.68(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Dielectric investigation of [(SrTiO$$_{3}$$)$$_{6}$$(BaTiO$$_{3}$$)$$_{6}$$]$$_{2}$$ multilayer capacitor

Yoneda, Yasuhiro; Sakaue, Kiyoshi*; Terauchi, Hikaru*

Japanese Journal of Applied Physics, Part 1, 40(12), p.6888 - 6892, 2001/12

 Times Cited Count:2 Percentile:11.81(Physics, Applied)

no abstracts in English

Journal Articles

Dielectric investigation of BaTiO$$_{3}$$ thin-film capacitor

Yoneda, Yasuhiro; Sakaue, Kiyoshi*; Terauchi, Hikaru*

Japanese Journal of Applied Physics, Part 1, 39(8), p.4839 - 4842, 2000/08

 Times Cited Count:16 Percentile:57.57(Physics, Applied)

no abstracts in English

JAEA Reports

A study on in-situ measuring method of an unsaturated zone

Nishida, Kaoru*; Maemura, Tsuneyuki*

JNC TJ7400 2000-004, 102 Pages, 2000/02

JNC-TJ7400-2000-004.pdf:5.64MB

no abstracts in English

JAEA Reports

None

Imai, Hisashi*; Nishida, Kaoru*; *; Amemiya, Kiyoshi*; Lin, Weiren*

PNC TJ1449 98-004, 231 Pages, 1998/02

PNC-TJ1449-98-004.pdf:16.85MB

None

Journal Articles

FTIR reflection absorption spectroscopy for organic thin film on ITO substrate

Tamada, Masao; Koshikawa, Hiroshi; Hosoi, Fumio; Suwa, Takeshi

Thin Solid Films, 315(1-2), p.40 - 43, 1998/00

 Times Cited Count:12 Percentile:55.73(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Cross-field flow of plasma produced by laser resonance photoionization

*; *; *; *; Ogura, Koichi; Shibata, Takemasa

Proc. of 1996 Int. Conf. on Plasma Physics, 1(0), p.398 - 401, 1997/00

no abstracts in English

Journal Articles

Measurement of temperature dependence of dielectric permittivity of sapphire window for high power gyrotrons

Takahashi, Koji; Kasugai, Atsushi; Sakamoto, Keishi; Tsuneoka, Masaki; Imai, Tsuyoshi

Japanese Journal of Applied Physics, 35(8), p.4413 - 4416, 1996/08

 Times Cited Count:5 Percentile:30.93(Physics, Applied)

no abstracts in English

JAEA Reports

None

PNC TJ1449 96-006, 288 Pages, 1996/03

PNC-TJ1449-96-006.pdf:12.79MB

None

JAEA Reports

Cross-field flow of a plasma produced by laser resonance photoionization

*; *; *; Ogura, Koichi; Shibata, Takemasa

JAERI-Research 95-021, 23 Pages, 1995/03

JAERI-Research-95-021.pdf:0.77MB

no abstracts in English

Journal Articles

High power experiment of MM wave transmission with sapphire

Kasugai, Atsushi; Takahashi, Koji; Sakamoto, Keishi; Tsuneoka, Masaki; Kariya, Tsuyoshi*; Imai, Tsuyoshi

Conf. Digest; 20th Int. Conf. on Infrared and Millimeter Waves, 0, p.18 - 19, 1995/00

no abstracts in English

Journal Articles

Dielectric anomaly at the superionic phase transition in PbF$$_{2}$$

;

Solid State Ionics, 51, p.75 - 78, 1992/00

 Times Cited Count:0 Percentile:0.01(Chemistry, Physical)

no abstracts in English

JAEA Reports

None

Sasao, Nobuyuki;

PNC TN8410 91-091, 95 Pages, 1991/03

PNC-TN8410-91-091.pdf:3.97MB

None

Journal Articles

Microwave properties of inhomogeneous YBa$$_{2}$$Cu$$_{3}$$O$$_{7}$$

;

Japanese Journal of Applied Physics, 29(11), p.2407 - 2410, 1990/11

 Times Cited Count:0 Percentile:0.01(Physics, Applied)

no abstracts in English

Journal Articles

Divergence of imaginary part of dielectric permittivity at the melting point in KCl

Nature, 325, p.43 - 44, 1987/00

 Times Cited Count:2 Percentile:18.58(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Dielectric constants of uranium oxides measured at microwave region

Nihon Genshiryoku Gakkai-Shi, 27(1), p.15 - 20, 1985/00

 Times Cited Count:0 Percentile:0.02(Nuclear Science & Technology)

no abstracts in English

Journal Articles

The Dielectric properties at 9.1 GHz and natures of small poralon in nonstoichiometric uranium oxides

Journal of Chemical Physics, 81(12), p.6130 - 6135, 1984/00

 Times Cited Count:6 Percentile:29.02(Chemistry, Physical)

no abstracts in English

Journal Articles

Decay of poloidal rotation in a tokamak plasma

Journal of the Physical Society of Japan, 39(5), p.1358 - 1364, 1975/05

 Times Cited Count:0

no abstracts in English

Oral presentation

Effect of permittivity on microwave heating characteristics

Kobayashi, Shohei*; Fujita, Shunya*; Abe, Yutaka*; Kaneko, Akiko*; Yuasa, Tomohisa*; Segawa, Tomoomi; Kato, Yoshiyuki; Kawaguchi, Koichi; Ishii, Katsunori

no journal, , 

The microwave heating denitration method is used in the spent fuel reprocessing process. In order to develop the mass production of denitrification technology for the future, it is necessary to fully grasp the operating conditions to avoid flashing and overflow phenomena of solution. In this research, the conditions of the generation of flashing are evaluated using the potassium chloride aqueous solution as the simulated solution, and the concentration of potassium chloride and the microwave output as parameters. It is found that it is difficult to occur the flashing phenomenon as the concentration of potassium chloride increases.

25 (Records 1-20 displayed on this page)