Abstract
The experiments on improving track technique of Th content determination in natural samples have been performed. For Th concentration measurements the {gamma}-rays with the energies 18 and 20 MeV were used. For {gamma}-rays energy interval 6 - 23.5 MeV the ratio of fission fragment tracks densities N{sub U}/N{sub Th} for thick targets of these elements has been obtained. That ratio ranges from 1.7 to 3.2 with the maximum at {gamma}-ray energy at {approx} 15 MeV. The determined Th concentrations in the calibrated Th standards and ironmanganese modules agrees within experimental error bar with the known values. For 9.1 MeV/nucl. {alpha}-particles the track density ratio N{sub U}/N{sub Th} has been found equal (1.06{+-}0.07), but the Th content was lovered down-possibly due to the vertical unhomogeneity of {alpha}-particle beam and also due to partial thermal fading of the tracks in mica. 7 refs.; 2 figs.; 1 tab.
Otgonsurehn, O;
Ehnkhzhin, L;
Gehrbish, Sh;
Perelygin, V P;
Petrova, R I
[1]
- Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Nuclear Reactions
Citation Formats
Otgonsurehn, O, Ehnkhzhin, L, Gehrbish, Sh, Perelygin, V P, and Petrova, R I.
Determination of Th content in specimens with the aid of {gamma}-rays and {alpha}-particles; Opredelenie soderzhaniya Th v obraztsakh s pomoshch`yu {gamma}-kvantov i {alpha}-chastits.
JINR: N. p.,
1991.
Web.
Otgonsurehn, O, Ehnkhzhin, L, Gehrbish, Sh, Perelygin, V P, & Petrova, R I.
Determination of Th content in specimens with the aid of {gamma}-rays and {alpha}-particles; Opredelenie soderzhaniya Th v obraztsakh s pomoshch`yu {gamma}-kvantov i {alpha}-chastits.
JINR.
Otgonsurehn, O, Ehnkhzhin, L, Gehrbish, Sh, Perelygin, V P, and Petrova, R I.
1991.
"Determination of Th content in specimens with the aid of {gamma}-rays and {alpha}-particles; Opredelenie soderzhaniya Th v obraztsakh s pomoshch`yu {gamma}-kvantov i {alpha}-chastits."
JINR.
@misc{etde_10125978,
title = {Determination of Th content in specimens with the aid of {gamma}-rays and {alpha}-particles; Opredelenie soderzhaniya Th v obraztsakh s pomoshch`yu {gamma}-kvantov i {alpha}-chastits}
author = {Otgonsurehn, O, Ehnkhzhin, L, Gehrbish, Sh, Perelygin, V P, and Petrova, R I}
abstractNote = {The experiments on improving track technique of Th content determination in natural samples have been performed. For Th concentration measurements the {gamma}-rays with the energies 18 and 20 MeV were used. For {gamma}-rays energy interval 6 - 23.5 MeV the ratio of fission fragment tracks densities N{sub U}/N{sub Th} for thick targets of these elements has been obtained. That ratio ranges from 1.7 to 3.2 with the maximum at {gamma}-ray energy at {approx} 15 MeV. The determined Th concentrations in the calibrated Th standards and ironmanganese modules agrees within experimental error bar with the known values. For 9.1 MeV/nucl. {alpha}-particles the track density ratio N{sub U}/N{sub Th} has been found equal (1.06{+-}0.07), but the Th content was lovered down-possibly due to the vertical unhomogeneity of {alpha}-particle beam and also due to partial thermal fading of the tracks in mica. 7 refs.; 2 figs.; 1 tab.}
place = {JINR}
year = {1991}
month = {Dec}
}
title = {Determination of Th content in specimens with the aid of {gamma}-rays and {alpha}-particles; Opredelenie soderzhaniya Th v obraztsakh s pomoshch`yu {gamma}-kvantov i {alpha}-chastits}
author = {Otgonsurehn, O, Ehnkhzhin, L, Gehrbish, Sh, Perelygin, V P, and Petrova, R I}
abstractNote = {The experiments on improving track technique of Th content determination in natural samples have been performed. For Th concentration measurements the {gamma}-rays with the energies 18 and 20 MeV were used. For {gamma}-rays energy interval 6 - 23.5 MeV the ratio of fission fragment tracks densities N{sub U}/N{sub Th} for thick targets of these elements has been obtained. That ratio ranges from 1.7 to 3.2 with the maximum at {gamma}-ray energy at {approx} 15 MeV. The determined Th concentrations in the calibrated Th standards and ironmanganese modules agrees within experimental error bar with the known values. For 9.1 MeV/nucl. {alpha}-particles the track density ratio N{sub U}/N{sub Th} has been found equal (1.06{+-}0.07), but the Th content was lovered down-possibly due to the vertical unhomogeneity of {alpha}-particle beam and also due to partial thermal fading of the tracks in mica. 7 refs.; 2 figs.; 1 tab.}
place = {JINR}
year = {1991}
month = {Dec}
}