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Search Results: Records 1-11 displayed on this page of 11
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Journal Articles

Experimental determination of the mechanism of the tunneling diffusion of H atoms in solid hydrogen; Physical exchange versus chemical reaction

Kumada, Takayuki

Physical Review B, 68(5), p.052301_1 - 052301_4, 2003/08

https://doi.org/10.1103/PhysRevB.68.052301
 Times Cited Count：39 Percentile：81.96(Materials Science, Multidisciplinary)

Effect of pressure on the recombination of H atoms produced by UV-photolysis of O$$_2$$-doped solid H$$_2$$ was studied using ESR spectroscopy. The recombination rate constant was independent of pressure up to 13 MPa below 4.2 K, whereas it remarkably decreases with the increase in pressure above. The absence of pressure effect indicates that the H atoms do not diffuse by the physical exchange of positions with neighboring H$$_2$$ molecules, but by the tunneling reaction H + H$$_2$$ $$rightarrow$$ H$$_2$$ + H.

Journal Articles

Low temperature chemistry in research reactor

Aratono, Yasuyuki

Hamon, 13(3), p.168 - 172, 2003/07

https://doi.org/10.5611/hamon.13.168

Recent works on hydrogen abstractions by tritium atom and on recombination reactions of tritium and hydrogen atoms at low temperature(1-2K), which were carried out at JRR-3M by the authors, were introduced.

Journal Articles

Trapping sites of hydrogen atoms in solid HD and D$$_{2}$$; An Electron spin echo study

Kumada, Takayuki; Noda, Tomoyoshi*; Kumagai, Jun*; Aratono, Yasuyuki; Miyazaki, Tetsuro

Journal of Chemical Physics, 111(24), p.10974 - 10978, 1999/12

https://doi.org/10.1063/1.480461
 Times Cited Count：10 Percentile：31.08(Chemistry, Physical)

no abstracts in English

Journal Articles

Hot atom chemistry

Aratono, Yasuyuki

Nihon Genshiryoku Gakkai-Shi, 41(4), p.391 - 392, 1999/04

no abstracts in English

JAEA Reports

Proceedings of the Meeting on Tunneling Reaction and Low Temperature Chemistry, 97 October; Tunneling reaction and quantum medium; October 13-14, 1997, JAERI, Tokai, Japan

Miyazaki, Tetsuro*; Aratono, Yasuyuki; *; *

JAERI-Conf 98-002, 101 Pages, 1998/02

JAERI-Conf-98-002.pdf:4.74MB

no abstracts in English

Journal Articles

An ENDOR spectrum of H atoms in solid H$$_{2}$$

Kumada, Takayuki; *; Noda, Tomoyoshi*; Kumagai, Jun*; Aratono, Yasuyuki; Miyazaki, Tetsuro*

Chemical Physics Letters, 288(5-6), p.755 - 759, 1998/00

https://doi.org/10.1016/S0009-2614(98)00296-6
 Times Cited Count：27 Percentile：64.51(Chemistry, Physical)

no abstracts in English

Journal Articles

Evaluation of the distance between the hydrogen atom and hydrogen molecule in the tunneling reaction HD+D$$rightarrow$$H+D$$_{2}$$ in an argon matrix at 20K

*; Kumada, Takayuki; Aratono, Yasuyuki; Miyazaki, Tetsuro*

Chemical Physics Letters, 268(5-6), p.493 - 497, 1997/00

https://doi.org/10.1016/S0009-2614(97)00205-4
 Times Cited Count：15 Percentile：47.46(Chemistry, Physical)

no abstracts in English

JAEA Reports

Proceedings of the 2nd Meeting on Tunneling Reaction and Low Temperature Chemistry- Tunneling Reaction and Biology; August 22-23,1996,JAERI,Tokai,Japan

Miyazaki, Tetsuro*; Aratono, Yasuyuki

JAERI-Conf 96-015, 74 Pages, 1996/11

JAERI-Conf-96-015.pdf:2.52MB

no abstracts in English

Journal Articles

Time evolution of the rate constant for the tunneling reaction H$$_{2}$$+D$$rightarrow$$H+HD in solid D$$_{2}$$-H$$_{2}$$ mixtures at very low temperature

Kumada, Takayuki; Aratono, Yasuyuki; Miyazaki, Tetsuro*

Chemical Physics, 212(1), p.177 - 182, 1996/00

https://doi.org/10.1016/S0301-0104(96)00188-7
 Times Cited Count：4 Percentile：17.3(Chemistry, Physical)

no abstracts in English

JAEA Reports

Proceedings of the Meeting on Tunneling Reaction and Low Temperature Chemistry, 95 July; July 31 - August 1, 1995, Tokai, Japan

Advanced Science Research Center

JAERI-Conf 95-020, 81 Pages, 1995/10

JAERI-Conf-95-020.pdf:2.82MB

no abstracts in English

Journal Articles

The moderation and tunneling reaction of recoil T atoms in solid xenon-hydrogen mixtures at 77K

*; Miyazaki, Tetsuro*; *; ; Aratono, Yasuyuki; Saeki, Masakatsu; Tachikawa, Enzo

Bulletin of the Chemical Society of Japan, 63(2), p.520 - 524, 1990/02

https://doi.org/10.1246/bcsj.63.520
 Times Cited Count：1 Percentile：15.73(Chemistry, Multidisciplinary)

no abstracts in English

11 (Records 1-11 displayed on this page)
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