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Inelastic incoherent neutron scattering from crystalline benzene

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

A differential cross-section of one-phonon inelastic incoherent neutron scattering has been calculated, based on the density of benzene phonon states weighted by the amplitudes of hydrogen atom vibration. The cross-section obtained has been convoluted with the apparatus function of the KDSOG-1 instrument (reactor IBR-I). The experimental scattering spectrum from a polycrystalline sample atT=80 K is compared with the calculated one.

Riassunto

La sezione d'urto differenziale di scattering anelastico incoerente di neutroni del benzene cristallino, per processi ad un fonone, è stata calcolata utilizzando la densità di stati fononici ottenuta teoricamente e pesata con le ampiezze di vibrazione degli atomi d'idrogeno. La sezione d'urto è stata quindi convoluta con la funzione strumentale dello spettrografo KDSOG-1, montato sul reattore nucleare di Dubna (USSR). Lo spettro calcolato di scattering inelastico, ottenuto in questo modo, è quindi paragonato con quello sperimentale misurato a 80 K.

Резюме

На основе рассчитанных плотностей фононных состояний бензола, взвешенных на амплитудах смещений атомов водорода, вычислено дважды дифференциальное сечение однофононного неупругого некогерентного рассеяния нейтронов (HHPH). Полученное сечение свернуто с аппаратной функцией прибора КДСОГ-I (реактор ИБР-I). Экспериментальный спекть HHPH от поликристаллического образца, находящегося при температуреT=80 K, сравнивается с рассчитанным.

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Authors and Affiliations

  1. Institute of Solid State Physics, Academy of Sciences of the USSR, 142432, Chernogolovka, USSR

    E. L. Bokhenkov, V. G. Fedotov & E. F. Sheka

  2. Joint Institute for Nuclear Research, P. O. Box 79, Dubna, USSR

    I. Natkaniec & M. Sudnik-Hrynkiewicz

  3. Istituto di Chimica Fisica dell'Università, Via G. Capponi 9, 50121, Firenze, Italia

    S. Califano & R. Righini

Authors
  1. E. L. Bokhenkov
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  2. V. G. Fedotov
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  3. E. F. Sheka
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  4. I. Natkaniec
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  5. M. Sudnik-Hrynkiewicz
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  6. S. Califano
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  7. R. Righini
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To speed up publication, the authors of this paper have agreed to not receive the proofs for correction.

Present address: Institute of Nuclear Physics, 31-342 Krakow, Poland.

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Bokhenkov, E.L., Fedotov, V.G., Sheka, E.F. et al. Inelastic incoherent neutron scattering from crystalline benzene. Nuov Cim B 44, 324–336 (1978). https://doi.org/10.1007/BF02726796

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  • DOI: https://doi.org/10.1007/BF02726796

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