Temat: FDG - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Isotopic water separation using AGMD and VEMD
Autorzy:: Kim, J.
Park, S.
Kim, T.-S.
Jeong, D.-Y.
Ko, K.-H.
Powiązania:: https://bibliotekanauki.pl/articles/147314.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: AGMD
VEMD
oxygen isotopes
PET
FDG
Opis:: The 18O isotopic water permeation and separation characteristics of a hydrophobic PTFE membrane using Air Gap Membrane Distillation (AGMD) and Vacuum Enhanced Membrane Distillation (VEMD) were investigated. Permeation fluxes were measured by weighing the collected membrane-permeated water vapor. 18O/16O of each water sample was analyzed by the Tunable Diode Laser Absorption Spectroscopy (TDLAS). We observed the effects of the air filled membrane pores and the temperature gradient applied to the membrane surfaces on the vapor permeation flux and the oxygen isotope separation for the first time. For both AGMD and VEMD, the permeation flux and the degree of 18O separation increased as the membrane interfacial temperature gradient increased. Even though, oxygen isotope separation and the permeation flux for VEMD is slightly higher than AGMD, the latter may be more efficient from the system's operational point of view.
Źródło:: Nukleonika; 2004, 49, 4; 137-142
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Production of [18F] fluoride with a high-current two layer spherical gold target
Autorzy:: Mirzaii, M.
Afarideh, H.
Hadji-Saeid, S.
Aslani, G.
Ensaf, M.
Powiązania:: https://bibliotekanauki.pl/articles/147973.pdf
Data publikacji:: 2004
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: water target
[18F] fluorine
FDG
PET
high current
Opis:: A new automated target for high yield production of aqueous [18F] fluoride at high beam currents has been constructed for a cyclotron at NRCAM in Karaj (Cyclone 30). It consists of one small golden sphere inside another target chamber, mounted into a special holder, which provides rapid cooling by water flow around and inside the sphere. The target is irradiated with 28 MeV protons. The incident energy on the target chamber is 18 MeV. This target is operated without external overpressure and has been tested for beam currents up to 60 ěA. The measured target yield is 80% of the theoretically calculated yield of 18F, which is used for the synthesis of [18F] 2-fluoro-2-deoxy-D-glucose.
Źródło:: Nukleonika; 2004, 49, 1; 23-27
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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