Nuclear Physics and Atomic Energy 8(1) (2007) 61

Ядерна фізика та енергетика
Nuclear Physics and Atomic Energy

ISSN: 1818-331X (Print), 2074-0565 (Online)
Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
Languages: Ukrainian, English
Periodicity: 4 times per year

Open access peer reviewed journal

Home page

About

Nucl. Phys. At. Energy 2007, volume 8, issue 1, pages 61-66.
Section: Nuclear Physics.
Received: 01.02.2007; Published online: 30.03.2007.

Full text (ru)
https://doi.org/10.15407/jnpae2007.01.061

Correlation of internal conversion electrons with "shake off" electrons under ε-decay of ¹⁵²Eu

N. F. Mitrokhovich, V. T. Kupryashkin

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: On special vacuum installation on coincidences of γ-quanta and electrons with electrons, including the e₀-electrons of second electronic emission (γee₀-coincidences), we explored correlation of conversion electron with "shake off" electron in ε-decay of ¹⁵²Eu. For electrons with energies 200 - 1750 eV, for the first time we received that intensity of low energy electron radiation, accompanied ε-decay of ¹⁵²Eu ("shake off" electrons), in direction of emitting conversion electron by 8(1) times exceeds intensity of this radiation in direction, opposed to emitting conversion electron. The e₀-electrons yield measuring for electrons ("shake off" electrons) area with that energy region shows such increase yield at measuring γee₀-coincidences on comparison with γe₀-coincidences. All that indicates on predominantly emitting of "shake off" electrons in such half sphere as conversion electron, caused strong flight directions correlation between conversion electron and "shake off" electron.

References:

1. Матвеев В. И., Парилис Э. С. Встряска при электронных переходах в атомах. Успехи физических наук 138 (1982) 573.

2. Митрохович Н. Ф. Электроны "встряски" при β-распаде ¹⁵²Eu. Зб. наук. праць Ін-ту ядерних досл. 4 (2003) 24. https://jnpae.kinr.kyiv.ua/04.1/Articles_PDF/jnpae-2003-04-1-024.pdf

3. Митрохович Н. Ф. Электроны "встряски" при β-распаде ^152,154Eu. Зб. наук. праць Ін-ту ядерних досл. 5 (2004) 52. https://jnpae.kinr.kyiv.ua/05.2/Articles_PDF/jnpae-2004-05-2-052.pdf

4. Митрохович Н. Ф. Корреляция β-частиц с электронами "встряски" при β-распаде ¹⁵²Eu. Proc. of the Int. Conf. "Current Problems in Nuclear Physics and Atomic Energy", NPAE-Kyiv2006 (Kyiv, 2007) Part 1, p. 412.

5. Купряшкин В. Т., Митрохович Н. Ф. Установка для измерения временных и энергетических спектров γβ(е + е₀)-совпадений. Ядерна фізика та енергетика 7 (2006) 90. https://jnpae.kinr.kyiv.ua/17(1)/Articles_PDF/jnpae-2006-1(17)-0090-Kupryashkin.pdf

6. Медведев М. Н. Сцинтилляционные детекторы (Москва: Атомиздат, 1977) c. 19, 21, 22.

7. Weber Th., Giessen H., Weckenbrock M. et al. Correlated electron emission in multiphoton double ionization. Nature 405 (2000) 658. https://doi.org/10.1038/35015033

8. Weckenbrock M., Hattas M., Gzasch M. et al. Experimental evidence for electron repulsion in multiphoton double ionization. J. Phys. B: At. Mol. Opt. Phys. 34 (2001) L449. https://doi.org/10.1088/0953-4075/34/14/104

9. Moshammer R., Ulrich J., Fisher D. Strongly directed electron emission in non-sequential double ionization of Ne by intense laser pulses. J. Phys. B: At. Mol. Opt. Phys. 36 (2003) L113. https://doi.org/10.1088/0953-4075/36/6/101