Application of Coincidence Doppler Broadening Spectroscopy to Hydrocarbons at Different Substance States

• Authors: R. Yu , T. Suzuki , Y. Ito , N. Djourelov , K. Kondo , V. Shantarovich
• Languages of publication: EN

Abstracts

EN

Coincidence Doppler broadening spectroscopy was applied to study n-hexane (C_6H_{14}), cyclohexane (C_6H_{12}) and cyclohexanone (C_6H_{10}O), at solid, as well as liquid states. The experiments were performed in parallel with traditional positron annihilation lifetime spectroscopy. Significant positron trapping by oxygen was observed in cyclohexanone; the oxygen effect is stronger in liquid state than in solid one, which can possibly be attributed to positron solvation in polar solution. Coincidence Doppler broadening results for n-hexane and cyclohexane indicate an existence of higher energetic annihilation electrons in Ps-bubble forming liquids than that in solids.

Keywords

EN

36.10.Dr; 82.30.Gg; 78.70.Bj

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
• 82.30.Gg: Positronium chemistry(see also 36.10.Dr Positronium in atomic and molecular physics; 78.70.Bj Positron annihilation in interactions of particles and radiation with matter)
• 36.10.Dr: Positronium(see also 82.30.Gg Positronium chemistry)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 4
• Pages: 697-701

Dates

published

2005-04

received

2004-09-20

Contributors

author

R. Yu

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

author

T. Suzuki

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

author

Y. Ito

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

author

N. Djourelov

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

author

K. Kondo

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

author

V. Shantarovich

• Radiation Science Center, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
• Semenov-Institute of Chemical Physics, Russian Academy of Sciences, GSP-1, Kosygin st. 4, Moscow 119977, Russia

References

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• 8. N. Djourelov, C. He, T. Suzuki, V. Shantarovich, Y. Ito, K. Kondo, Y. Ito, Chem. Phys., 302, 179, 2004

Identifiers

DOI

10.12693/APhysPolA.107.697