Pavel P Povinec
Biographic Data
| ID | 4985545 |
|---|---|
| NAME | Pavel P Povinec |
| GIVEN NAMES | Pavel P |
| FAMILY NAME | Povinec |
| SIGNATURE | POVINEC P P |
| AFFILIATIONS | Comenius University Bratislava |
| ORCID | 0000-0003-0275-794X |
| VERIFIED | Yes |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 17 |
| WORKS AS AUTHOR | 11 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1973 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Radiocarbon dating of the Church of St. Margaret of Antioch in Kopčany (Slovakia)
An international consortium of radiocarbon laboratories has established the origin of the Church of St. Margaret of Antioch in Kopčany (Slovakia), because its age was not well known from previous investigations. In total, 13 samples of charcoal, wood, mortar, and plaster were analyzed. The 14 C results obtained from the different laboratories, as well as between the different sample types, were in good agreement. Resulting the final 14 C calibrat…
Radiocarbon Variations in Annual Tree Rings With 11-Year Solar Cycles During 1800–1950
The results of radiocarbon variation studies observed in annual tree rings from the NW Pacific (USA Northwest) (Stuiver and Braziunas 1993) and Europe (England, Brehm et al. 2021; Slovakia, Povinec 1977, 1987) are reviewed with the aim of better understanding the 11-year radiocarbon cycle and possible impacts of solar proton events on 14 C levels in the atmosphere and biosphere. The average Δ 14 C amplitude in tree rings for the period of 1798–19…
Radiocarbon Dating of Mortar Charcoals From Medieval Rýzmburk Castle, Northwestern Bohemia
Rýzmburk Castle is one of the largest and most important medieval castles in Bohemia, documented since 1250 AD. Its North tower is assumed to be built in 1260–1300 AD. To test this assumption, the surface layers of mortar were inspected for the presence of charcoals suitable for radiocarbon dating, and 10 charcoals were found. The charcoals probably originated from wood used for lime burning. The results of radiocarbon dating using accelerator ma…
Radiocarbon Dating of St. George’s Rotunda in Nitrianska Blatnica (Slovakia)
An international consortium of radiocarbon ( 14 C) laboratories was established to date the origin of the St. George’s Rotunda in Nitrianska Blatnica (Slovakia), because its age was not well established in previous investigations. Altogether, 20 samples of wood, charcoal, mortar and plaster were analyzed. The 14 C results obtained from the different laboratories as well as between the different sample types were in good agreement, resulting in a …
Methods of Radiocarbon Determination in Wine and Bone Samples by Gas Proportional Counting Technique
Although radiocarbon accelerator mass spectrometry ( 14 C AMS) surpasses conventional radiometric methods in many aspects, they still represent an interesting alternative, especially for studies unconstrained by sample size. Here we showed that the gas proportional counting technique can be used for bone samples, processed only by a simple ABA method, and ethanol, distilled from wine samples. The feasibility of the described methods was verified …
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Developments in Radiocarbon Technologies
We review developments in radiocarbon measuring techniques from the Libby counter through proportional gas counters and liquid scintillation spectrometers to the more recent developments of accelerator mass spectrometry (AMS), followed by a coupling of gas chromatography with AMS for compound-specific 14 C analyses. While during the first 60 yr of 14 C measurements beta counting, specifically gas counting, was the dominant technique, in the futur…
Preparation of Graphite Targets from Small Marine Samples for AMS Radiocarbon Measurements
A vacuum sample processing line was set up and methods were developed for the determination of radiocarbon in small-volume seawater and biota samples. Seawater samples (500 mL per borosilicate glass bottle and poisoned with HgCl 2 ) were acidified with 5 mL concentrated hydrochloric acid. Pure N 2 was used as a carrier gas to strip CO 2 from the samples for 10 min in a circulation mode. After purification through several water traps, the CO 2 was…
Radiocarbon in the Water Column of the Southwestern North Pacific Ocean—24 Years After Geosecs
In the framework of the Worldwide Marine Radioactivity Studies (WOMARS) project, water profile samples for radiocarbon measurements were taken during the IAEA'97 cruise at 10 stations in the southwestern North Pacific Ocean. While 14 C concentrations were rapidly decreasing from the surface (Δ 14 C about 100‰) down to about 800 m at all visited stations (Δ 14 C about −200‰), the concentrations below 1000 m were almost constant. Some stations were…
Radiocarbon Updates
This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries
Bratislava Radiocarbon Measurements I
The Radiocarbon Dating Laboratory was established in 1967 at the Department of Nuclear Physics, Comenius University, as part of a program of low level counting research of the department and as a contribution to geophysical, geologic, archaeologic and hydrologie research
Developments in Radiocarbon Technologies
We review developments in radiocarbon measuring techniques from the Libby counter through proportional gas counters and liquid scintillation spectrometers to the more recent developments of accelerator mass spectrometry (AMS), followed by a coupling of gas chromatography with AMS for compound-specific 14 C analyses. While during the first 60 yr of 14 C measurements beta counting, specifically gas counting, was the dominant technique, in the futur…
Bratislava Radiocarbon Measurements I
The Radiocarbon Dating Laboratory was established in 1967 at the Department of Nuclear Physics, Comenius University, as part of a program of low level counting research of the department and as a contribution to geophysical, geologic, archaeologic and hydrologie research
Radiocarbon in the Water Column of the Southwestern North Pacific Ocean—24 Years After Geosecs
In the framework of the Worldwide Marine Radioactivity Studies (WOMARS) project, water profile samples for radiocarbon measurements were taken during the IAEA'97 cruise at 10 stations in the southwestern North Pacific Ocean. While 14 C concentrations were rapidly decreasing from the surface (Δ 14 C about 100‰) down to about 800 m at all visited stations (Δ 14 C about −200‰), the concentrations below 1000 m were almost constant. Some stations were…
Preparation of Graphite Targets from Small Marine Samples for AMS Radiocarbon Measurements
A vacuum sample processing line was set up and methods were developed for the determination of radiocarbon in small-volume seawater and biota samples. Seawater samples (500 mL per borosilicate glass bottle and poisoned with HgCl 2 ) were acidified with 5 mL concentrated hydrochloric acid. Pure N 2 was used as a carrier gas to strip CO 2 from the samples for 10 min in a circulation mode. After purification through several water traps, the CO 2 was…
Radiocarbon Dating of Mortar Charcoals From Medieval Rýzmburk Castle, Northwestern Bohemia
Rýzmburk Castle is one of the largest and most important medieval castles in Bohemia, documented since 1250 AD. Its North tower is assumed to be built in 1260–1300 AD. To test this assumption, the surface layers of mortar were inspected for the presence of charcoals suitable for radiocarbon dating, and 10 charcoals were found. The charcoals probably originated from wood used for lime burning. The results of radiocarbon dating using accelerator ma…
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Bratislava Radiocarbon Measurements I
The Radiocarbon Dating Laboratory was established in 1967 at the Department of Nuclear Physics, Comenius University, as part of a program of low level counting research of the department and as a contribution to geophysical, geologic, archaeologic and hydrologie research
Radiocarbon Updates
This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries
Preparation of Graphite Targets from Small Marine Samples for AMS Radiocarbon Measurements
A vacuum sample processing line was set up and methods were developed for the determination of radiocarbon in small-volume seawater and biota samples. Seawater samples (500 mL per borosilicate glass bottle and poisoned with HgCl 2 ) were acidified with 5 mL concentrated hydrochloric acid. Pure N 2 was used as a carrier gas to strip CO 2 from the samples for 10 min in a circulation mode. After purification through several water traps, the CO 2 was…
Radiocarbon in the Water Column of the Southwestern North Pacific Ocean—24 Years After Geosecs
In the framework of the Worldwide Marine Radioactivity Studies (WOMARS) project, water profile samples for radiocarbon measurements were taken during the IAEA'97 cruise at 10 stations in the southwestern North Pacific Ocean. While 14 C concentrations were rapidly decreasing from the surface (Δ 14 C about 100‰) down to about 800 m at all visited stations (Δ 14 C about −200‰), the concentrations below 1000 m were almost constant. Some stations were…
Developments in Radiocarbon Technologies
We review developments in radiocarbon measuring techniques from the Libby counter through proportional gas counters and liquid scintillation spectrometers to the more recent developments of accelerator mass spectrometry (AMS), followed by a coupling of gas chromatography with AMS for compound-specific 14 C analyses. While during the first 60 yr of 14 C measurements beta counting, specifically gas counting, was the dominant technique, in the futur…
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Methods of Radiocarbon Determination in Wine and Bone Samples by Gas Proportional Counting Technique
Although radiocarbon accelerator mass spectrometry ( 14 C AMS) surpasses conventional radiometric methods in many aspects, they still represent an interesting alternative, especially for studies unconstrained by sample size. Here we showed that the gas proportional counting technique can be used for bone samples, processed only by a simple ABA method, and ethanol, distilled from wine samples. The feasibility of the described methods was verified …
Radiocarbon Dating of St. George’s Rotunda in Nitrianska Blatnica (Slovakia)
An international consortium of radiocarbon ( 14 C) laboratories was established to date the origin of the St. George’s Rotunda in Nitrianska Blatnica (Slovakia), because its age was not well established in previous investigations. Altogether, 20 samples of wood, charcoal, mortar and plaster were analyzed. The 14 C results obtained from the different laboratories as well as between the different sample types were in good agreement, resulting in a …
Radiocarbon Dating of Mortar Charcoals From Medieval Rýzmburk Castle, Northwestern Bohemia
Rýzmburk Castle is one of the largest and most important medieval castles in Bohemia, documented since 1250 AD. Its North tower is assumed to be built in 1260–1300 AD. To test this assumption, the surface layers of mortar were inspected for the presence of charcoals suitable for radiocarbon dating, and 10 charcoals were found. The charcoals probably originated from wood used for lime burning. The results of radiocarbon dating using accelerator ma…
Radiocarbon Variations in Annual Tree Rings With 11-Year Solar Cycles During 1800–1950
The results of radiocarbon variation studies observed in annual tree rings from the NW Pacific (USA Northwest) (Stuiver and Braziunas 1993) and Europe (England, Brehm et al. 2021; Slovakia, Povinec 1977, 1987) are reviewed with the aim of better understanding the 11-year radiocarbon cycle and possible impacts of solar proton events on 14 C levels in the atmosphere and biosphere. The average Δ 14 C amplitude in tree rings for the period of 1798–19…
Radiocarbon dating of the Church of St. Margaret of Antioch in Kopčany (Slovakia)
An international consortium of radiocarbon laboratories has established the origin of the Church of St. Margaret of Antioch in Kopčany (Slovakia), because its age was not well known from previous investigations. In total, 13 samples of charcoal, wood, mortar, and plaster were analyzed. The 14 C results obtained from the different laboratories, as well as between the different sample types, were in good agreement. Resulting the final 14 C calibrat…
Geology (10 works) · Radiocarbon dating (10 works) · Archaeology (8 works) · Archaeology and ancient environmental studies (7 works) · Chemistry (7 works) · Geography (6 works) · Paleontology (6 works) · Accelerator mass spectrometry (4 works) · Geology and Paleoclimatology Research (4 works) · Isotope Analysis in Ecology (4 works)