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Dynamical polarization of protons in some polymers using the solid effect method

ДИНАМИЧЕСКАЯ ПОЛЯРИ ЗАЦИЯ ПРОТОНОВ В НЕКО ТОРЫХ ПОЛИМЕРАХ ПРИ ПОМОЩИ МЕТОДА „SOLID EFFECT“

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Cechoslovackij fiziceskij zurnal B Aims and scope

Abstract

Experimental results on the dynamical polarization of protons in various polymers irradiated by neutrons are recapitulated. The measurements were performed at liquid nitrogen temperatures. The dependence was investigated of the degree of polarization on the microwave power, on the irradiation dose and on the change in frequency of the nuclear magnetic resonance. The maximum enhancement of polarization was obtained for polyethylene of a density ∼ 0·95 g/cm3 and was equal to 30.

Abstract

Работа дает сводку эк спериментальных рез ультатов динамической поляри зации протонов в разных полимерах об лученных нейтронами. Измерения проводились при темп ературе жидкого азота. Исслед овалась зависимость степени поляризации от микро волновой мощности, от величины дозы облу чения и от изменения ч астоты ядерного магнитного резонанса. Максимальное повыше ние поляризации, равн ое 30, получено у полиэтиле на с плотностью ∼0,95 g/cm3.

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Authors and Affiliations

  1. Nuclear Research Institute, Czechosl. Acad. Sci., Řež near Prague

    J. Burget, M. Odehnal, V. Petříček & J. Šácha

Authors
  1. J. Burget
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  2. M. Odehnal
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  3. V. Petříček
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  4. J. Šácha
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Additional information

In conclusion we thank R. Tichý for assistance in the measurements and S. Roda for help in the construction of the apparatus.

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Burget, J., Odehnal, M., Petříček, V. et al. Dynamical polarization of protons in some polymers using the solid effect method. Czech J Phys 12, 911–918 (1962). https://doi.org/10.1007/BF01688633

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  • DOI: https://doi.org/10.1007/BF01688633

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