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Influence of the soft X-ray plasma focus radiation on live microorganisms

Published online by Cambridge University Press:  29 March 2012

S. Zapryanov ,
V. Goltsev ,
B. Galutsov ,
M. Gelev  and
A. Blagoev
S. Zapryanov
Affiliation:
Faculty of Physics, Sofia University, 5 J. Bourchier Blvd., 1164 Sofia, Bulgaria
V. Goltsev
Affiliation:
Faculty of Biology, Sofia University, 8 D Tsankov Blvd., 1421 Sofia, Bulgaria
B. Galutsov
Affiliation:
Faculty of Biology, Sofia University, 8 D Tsankov Blvd., 1421 Sofia, Bulgaria
M. Gelev
Affiliation:
Institute of Nuclear Research and Nuclear Energy, 72 Tzarigradsko Shossee Blvd., 1784 Sofia, Bulgaria
A. Blagoev*
Affiliation:
Faculty of Physics, Sofia University, 5 J. Bourchier Blvd., 1164 Sofia, Bulgaria
*
a e-mail: blagoev@phys.uni-sofia.bg
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Abstract

A 3 kJ plasma focus device was used to study the influence of the soft X-ray on live microorganisms. When Saccharomyces cerevisiae – (yeast) was treated with a dose of 65 mSv of the X-ray radiation (14 shots), no difference in the fertility activity between the control probe and the sample was observed. Also no change in the survival enzyme activity was found after irradiation through a 100 μm Al foil of another type of yeast – Kluyveromyces marxiamus. The irradiation of the Chlamydomonas reinhardtii samples by the PF-X-ray emission through 20 μm Al foil with a dose of 11 mSv produces a considerable change of the photosynthesis parameters. This result is similar to the results of previous studies with plasma focus radiation where strong effects were derived with low doses but with a high dose power.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 58 , Issue 1 , April 2012 , 11201
Copyright
© EDP Sciences, 2012

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