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Tomato is one of the most important sources of lycopene. The effect of water supply was investigated on lycopene content of Daniela F1

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Journal of Radioanalytical and Nuclear Chemistry
Authors:
B. Bisplinghoff
,
V. Bradnova
,
R. Brandt
,
K. Dwivedi
,
V. Butsev
,
E. Friedlander
,
S. Gosh
,
Guo Shi-Lun
,
M. Heck
,
Jin Huimin
,
M. Krivopustov
,
B. Kulakov
,
C. Laue
,
L. Lerman
,
Th. Schmidt
,
A. Sosnin
, and
Wang Yu-Lan

Abstract  

An extended Cu-target was irradiated with 22 and 44 GeV carbon ions for about 11.3 and 14.7 hours, respectively. The upper side of the target was in contact with a paraffin-block for the moderation of secondary neutrons. Small holes in the moderator were filled with either lanthanum salts or uranium oxide. The reaction
\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $${}^{139}La(n,\gamma ){}^{140}La\mathop \to \limits^{\beta - }$$ \end{document}
was studied via the decay of140La(40h) using radiochemical methods, as has been published. The reaction
\documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{bm} \usepackage{mathrsfs} \usepackage{pifont} \usepackage{stmaryrd} \usepackage{textcomp} \usepackage{upgreek} \usepackage{portland,xspace} \usepackage{amsmath,amsxtra} \pagestyle{empty} \DeclareMathSizes{10}{9}{7}{6} \begin{document} $${}^{238}U(n,\gamma )^{239} U\mathop \to \limits^{\beta - } {}^{239}Np\mathop \to \limits^{\beta - }$$ \end{document}
was studied via the decay of239Np(2.3 d) as well as the reaction U(n,f) using radiochemical methods. In addition, solid state nuclear track detectors were used for fission studies in gold. The yields for the formation of (n,) products agree essentially with other experiments on extended targets carried out at the Dubna Synchrophasotron (LHE, JINR). To a first approximation, the breeding rate of (n, ) products doubles when the carbon energy increases from 22 to 44 GeV. If, however, results at 44 GeV are compared in detail to those at 22 GeV, we observe an excess of (37±9)% in the experimentally observed239Np-breeding rate over theoretical estimations. Experiments using solid state nuclear track detectors give similar results. We present a conception for the interpretation of this fact: There is the evident connection between anomalies we observe in the yield of secondary particles in relativistic heavy ion interactions above a total energy of approximately 30–35 GeV and increased yield of neutrons in this energy region.
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Journal of Radioanalytical and Nuclear Chemistry
Authors:
J.-S. Wan
,
E.-J. Langrock
,
W. Westmeier
,
P. Vater
,
R. Brandt
,
J. Adam
,
A. Balabekian
,
V. Bamblevski
,
M. Barabanov
,
V. Bradnova
,
P. Chaloun
,
V. Kalinnikov
,
V. Krasnov
,
M. Krivopustov
,
B. Kulakov
,
V. Perelygin
,
V. Pronskikh
,
A. Solnyshkin
,
A. Sosnin
,
V. Stegailov
,
V. Tsoupko-Sitnikov
,
G. Modolo
,
R. Odoj
,
S. Hashemi-Nezhad
, and
M. Zamani-Vallasiadou

Abstract  

Incineration studies of plutonium were carried out at the Synchrophasotron of the Joint Institute for Nuclear Research (JINR), Dubna, using proton beams with energies of 0.53 GeV and 1.0 GeV. Solid lead targets (8 cm in diameter and 20 cm long) were surrounded with 6 cm thick paraffin as neutron moderator and then irradiated. The transmutation of 239 Pu and the associated production of fission products 91 Sr, 92 Sr, 97 Zr, 99 Mo, 103 Ru, 105 Ru, 129 Sb, 132 Te, 133 I, 135 I and 143 Ce were studied in the present work. The plutonium samples (each 449 mg) were placed on the outer surface of moderator. For 1.0 GeV proton beam, the fission rate of 239 Pu is 0.0032 atoms per proton in one gram plutonium samples, for 0.53 GeV proton, this value is 0.0022. The experimental uncertainty is about 15%. The experiments are compared to two theoretical model calculations with moderate success, using the Dubna Cascade Model (CEM) and the LAHET code. The practical incineration rate of 239 Pu is very high. For example: if one uses 10 mA, 1 GeV proton beams under the same (fictive) experimental conditions, the incineration rate of 239 Pu via fission is 3 mg out of the 449 mg sample per day. For 0.53 GeV protons the corresponding rate is 2 mg per day.

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Journal of Radioanalytical and Nuclear Chemistry
Authors:
M. Krivopustov
,
A. Pavliouk
,
A. Kovalenko
,
I. Mariin
,
A. Elishev
,
J. Adam
,
A. Kovalik
,
Yu. Batusov
,
V. Kalinnikov
,
V. Brudanin
,
P. Chaloun
,
V. Tsoupko-Sitnikov
,
A. Solnyshkin
,
V. Stegailov
,
Sh. Gerbish
,
O. Svoboda
,
Z. Dubnicka
,
M. Kala
,
M. Kloc
,
A. Krasa
,
A. Kugler
,
M. Majerle
,
V. Wagner
,
R. Brandt
,
W. Westmeier
,
H. Robotham
,
K. Siemon
,
M. Bielewicz
,
S. Kilim
,
M. Szuta
,
E. Strugalska-Gola
,
A. Wojeciechowski
,
S. Hashemi-Nezhad
,
M. Manolopoulou
,
M. Fragopolou
,
S. Stoulos
,
M. Zamani-Valasiadou
,
S. Jokic
,
K. Katovsky
,
O. Schastny
,
I. Zhuk
,
A. Potapenko
,
A. Safronova
,
Zh. Lukashevich
,
V. Voronko
,
V. Sotnikov
,
V. Sidorenko
,
W. Ensinger
,
H. Severin
,
S. Batsev
,
L. Kostov
,
Kh. Protokhristov
,
Ch. Stoyanov
,
O. Yordanov
,
P. Zhivkov
,
A. Kumar
,
M. Sharma
,
A. Khilmanovich
,
B. Marcinkevich
,
S. Korneev
,
Ts. Damdinsuren
,
Ts. Togoo
, and
H. Kumawat

Abstract  

An extended U/Pb-assembly was irradiated with an extracted beam of 2.52 GeV deuterons from the Nuclotron accelerator of the Laboratory of High Energies within the JINR in Dubna, Russia. The lay-out of this experiment and first results are reported. The Pb-target (diameter 8.4 cm, length 45.6 cm) is surrounded by a natU-blanket (206.4 kg) and used for transmutation studies of hermetically sealed radioactive samples of 129I, 237Np, 238Pu and 239Pu. Estimates of transmutation rates were obtained as result of measurements of gamma-activities of the samples. Information about the spatial and energy distribution of neutrons in the volume of the lead target and the uranium blanket was obtained with sets of activation threshold detectors (Al, Y and Au) and solid state nuclear track detectors (SSNTD). An electronic 3He neutron detector was tested on-line. A comparison of experimental data with theoretical model calculations using the MCNPX program was performed yielding satisfactory results.

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