Carmen Varlam
Biographic Data
| ID | 4456828 |
|---|---|
| NAME | Carmen Varlam |
| GIVEN NAMES | Carmen |
| FAMILY NAME | Varlam |
| SIGNATURE | VARLAM C |
| AFFILIATIONS | National Research and Development Institute for Cryogenic and Isotopic Technologies – ICSI |
| ORCID | 0000-0003-3325-822X |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 6 |
| WORKS AS AUTHOR | 5 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 1 |
Thermoelectrical power plant influence on environmental radiocarbon level in the Govora industrial area
The radiocarbon ( 14 C) specific activity was measured in vegetation and atmosphere in Ramnicu Valcea, Romania. On the sampling location operates a nuclear installation, namely “Experimental Pilot for Separation of Tritium and Deuterium” (PESTD), a semi-industrial installation designed for the detritiation of heavy water moderator of CANDU reactors and a 315 MW coal-fired thermoelectric power plant. Because one of the important releases of PESTD …
Reproducibility of CO 2 Absorption Method for measurement of Radiocarbon using a Parr Bomb and LSC
The CO 2 absorption and liquid scintillation counting (LSC) are methods used in radioactivity monitoring programs of nuclear facilities for 14 C measurements due to high number of samples and relatively high expected level of 14 C concentration. The paper describes the chemical sample preparation applied to a quality control material (IAEA-C3 Cellulose), in order to evaluate the reproducibility of CO 2 absorption method for this type of material.…
Radiocarbon and Tritium Levels Along the Romanian Lower Danube River
The Lower Danube Basin covers the Romanian-Bulgarian sub-basin downstream from Cazane Gorge and the sub-basins of the Siret and Prut rivers. To extensively survey the Romanian nuclear power plant impact on the Danube water, tritium and radiocarbon baseline values are required. Therefore, the reported study tried to establish these values based on a 2-yr sampling campaign covering 975 km of the Danube from Cazane Gorge to Tulcea. The tributaries C…
Direct Absorption Method and Liquid Scintillation Counting for Radiocarbon Measurements in Organic Carbon from Sediments
In this paper, we investigate a procedure for radiocarbon determination in forest soil and slurry from lake sediments. The total carbon in these samples can be both inorganic and organic. Inorganic carbon can be analyzed in a straightforward manner using the direct absorption method by sample acidification and CO 2 capture. For organic carbon, we investigate a hybrid method using the wet-oxidation of organic carbon followed by direct absorption. …
Applying the Direct Absorption Method and LSC for 14 C Concentration Measurement in Aqueous Samples
We investigated a simple, reliable radiocarbon measurement procedure for water samples using the direct absorption method for sample preparation, followed by low-level liquid scintillation spectrometry. This process has involved quantitative evaluation of the conversion steps in order to estimate the appropriate working parameters. The 14 C activity of dissolved inorganic carbon (DIC) for several types of water (ranging from seawater to groundwat…
Applying the Direct Absorption Method and LSC for 14 C Concentration Measurement in Aqueous Samples
We investigated a simple, reliable radiocarbon measurement procedure for water samples using the direct absorption method for sample preparation, followed by low-level liquid scintillation spectrometry. This process has involved quantitative evaluation of the conversion steps in order to estimate the appropriate working parameters. The 14 C activity of dissolved inorganic carbon (DIC) for several types of water (ranging from seawater to groundwat…
Radiocarbon and Tritium Levels Along the Romanian Lower Danube River
The Lower Danube Basin covers the Romanian-Bulgarian sub-basin downstream from Cazane Gorge and the sub-basins of the Siret and Prut rivers. To extensively survey the Romanian nuclear power plant impact on the Danube water, tritium and radiocarbon baseline values are required. Therefore, the reported study tried to establish these values based on a 2-yr sampling campaign covering 975 km of the Danube from Cazane Gorge to Tulcea. The tributaries C…
Applying the Direct Absorption Method and LSC for 14 C Concentration Measurement in Aqueous Samples
We investigated a simple, reliable radiocarbon measurement procedure for water samples using the direct absorption method for sample preparation, followed by low-level liquid scintillation spectrometry. This process has involved quantitative evaluation of the conversion steps in order to estimate the appropriate working parameters. The 14 C activity of dissolved inorganic carbon (DIC) for several types of water (ranging from seawater to groundwat…
Radiocarbon and Tritium Levels Along the Romanian Lower Danube River
The Lower Danube Basin covers the Romanian-Bulgarian sub-basin downstream from Cazane Gorge and the sub-basins of the Siret and Prut rivers. To extensively survey the Romanian nuclear power plant impact on the Danube water, tritium and radiocarbon baseline values are required. Therefore, the reported study tried to establish these values based on a 2-yr sampling campaign covering 975 km of the Danube from Cazane Gorge to Tulcea. The tributaries C…
Direct Absorption Method and Liquid Scintillation Counting for Radiocarbon Measurements in Organic Carbon from Sediments
In this paper, we investigate a procedure for radiocarbon determination in forest soil and slurry from lake sediments. The total carbon in these samples can be both inorganic and organic. Inorganic carbon can be analyzed in a straightforward manner using the direct absorption method by sample acidification and CO 2 capture. For organic carbon, we investigate a hybrid method using the wet-oxidation of organic carbon followed by direct absorption. …
Reproducibility of CO 2 Absorption Method for measurement of Radiocarbon using a Parr Bomb and LSC
The CO 2 absorption and liquid scintillation counting (LSC) are methods used in radioactivity monitoring programs of nuclear facilities for 14 C measurements due to high number of samples and relatively high expected level of 14 C concentration. The paper describes the chemical sample preparation applied to a quality control material (IAEA-C3 Cellulose), in order to evaluate the reproducibility of CO 2 absorption method for this type of material.…
Thermoelectrical power plant influence on environmental radiocarbon level in the Govora industrial area
The radiocarbon ( 14 C) specific activity was measured in vegetation and atmosphere in Ramnicu Valcea, Romania. On the sampling location operates a nuclear installation, namely “Experimental Pilot for Separation of Tritium and Deuterium” (PESTD), a semi-industrial installation designed for the detritiation of heavy water moderator of CANDU reactors and a 315 MW coal-fired thermoelectric power plant. Because one of the important releases of PESTD …
Environmental Science (5 works) · Isotope Analysis in Ecology (5 works) · Radiocarbon dating (5 works) · Geology (4 works) · Chemistry (3 works) · Chromatography (3 works) · Liquid scintillation counting (3 works) · Materials Science (3 works) · Radioactive contamination and transfer (3 works) · Radiochemistry (3 works)