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Study of147Pm beta-induced bremsstrahlung spectra

Исследование спектров тормоэного иэлучения, индуцированного бета-распадом147Pm

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Il Nuovo Cimento A (1965-1970)

Summary

External bremsstrahlung produced in thick targets of Al, Cu, Mo, Cd and Pb by the beta-particles of147Pm has been investigated using a (4.55×5.08) cm2 NaI(Tl) scintillator. The measured spectra after unfolding have been compared with the Bethe-Heitler, Elwert-corrected Bethe-Heitler, Morgan-corrected Bethe-Heitler and Tseng and Pratt theories. The experimental spectra agree fairly well with the EBH theory up to about 120 keV and deviate positively thereafter from all the theories.

Riassunto

Il bremsstrahlung esterno prodotto in bersagli spessi di Al, Cu, Mo, Cd e Pb da particelle beta di147Pm è stato studiato usando uno scintillatore NaI(Tl) (4.55×5.08)cm2. Gli spettri misurati dopo lo sviluppo sono stati paragonati con le teorie di Bethe-Heitler, di Bethe-Heitler corrette da Elwert, di Bethe-Heitler e di Tseng e Pratt corrette da Morgan. Gli spettri sperimentali sono abbastanza in accordo con la teoria EBH fino a 120 keV e deviano positivamente da questo valore in poi rispetto a tutte le altre teorie.

Реэюме

Испольэуя NаI(Т1) сцинтиллятор (4.55×5.08) cm2, исследуется внещнее тормоэное иэлучение, обраэованное в толстых мищенях Al, Cu, Mo, Cd и Pb бета-частицами иэ147Pm. Иэмеренные спектры сравниваются с теориями Бете-Гайтлера, Бете-Гайтлера с поправками Элверта, Бете-Гайтлера с поправками Моргана и Ченга и Прата. Экспериментальные спектры удовлетворительно описываются теорией Бете-Гайтлера с поправками Элверта вплоть до 120 кзB, но обнаруживают отклонения от всех других теорий.

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Authors and Affiliations

  1. Department of Physics, University of Mysore, 570 006, Mysore, India

    K. Gopala, B. Rudraswamy, P. Venkataramaiah & H. Sanjeeviah

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  1. K. Gopala
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  2. B. Rudraswamy
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  3. P. Venkataramaiah
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  4. H. Sanjeeviah
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Gopala, K., Rudraswamy, B., Venkataramaiah, P. et al. Study of147Pm beta-induced bremsstrahlung spectra. Nuov Cim A 99, 55–62 (1988). https://doi.org/10.1007/BF02735211

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