G V RAVI PRASAD
Biographic Data
| ID | 5217094 |
|---|---|
| NAME | G V RAVI PRASAD |
| GIVEN NAMES | G V RAVI |
| FAMILY NAME | PRASAD |
| SIGNATURE | PRASAD G V R |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 17 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2020 |
| H-INDEX | 2 |
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison
The radiocarbon ( 14 C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce large datasets of annual resolution for calibration purposes using small amounts of wood. The radiocarbon intercomparison on single-year tree-ring samples presented here is the first to investigate specifically …
Effect of Beam Transmission of Stable Isotopes on Online δ 13 C for SSAMS
It is known that 12 C beam transmission through the accelerator decreases at high beam currents. This effect depends on machine design and varies across different types of AMS instruments. For beam currents of about 100 μA, the effect is small on the 500 kV tandem CAMS unit, whereas beam saturation is observed for similar high beam currents on the 250 kV SSAMS unit. While this effect is very evident for high 12 C beam currents, we have also obser…
The New 250kV Single Stage AMS System at Cais, University of Georgia
A new 250kV single stage AMS accelerator (SSAMS) was installed at the Center for Applied Isotope Studies, University of Georgia. The accelerator is intended to be used primarily for radiocarbon measurements of natural and biobased samples, while all other samples such as marine, geological, atmospheric and archaeological samples are measured on the decade-old 500kV compact tandem accelerator (CAMS). The new AMS system is equipped with a 134-catho…
Present-Day Radiocarbon Content of Select Flavoring Compounds Reveals Vanillin Production Pathway
Radiocarbon and stable isotope determination in foods, flavors, and beverages, for the authentication of source material and process of formation, is a well-established method of identity used in industry. New methods of provenance determination, using stable isotopes of oxygen and hydrogen, have added to the host of other isotopic methods used for characterizing natural or botanically derived products. The unambiguous determinant of a product's …
Decadal Changes of Radiocarbon in the Surface Bay of Bengal
Radiocarbon was measured in the surface seawater dissolved inorganic carbon (DIC) of the Bay of Bengal during November 2006. A meridional transect of the Δ 14 C in DIC was obtained from measurements in closely spaced samples collected roughly along 88°E. The Δ 14 C of these samples ranged from 44‰ to 57.7‰ (mean 51.8 ± 1.1‰, n = 12), and 38‰ at one station in the northern Bay of Bengal. The overall pattern of 14 C distribution in DIC of surface B…
The Radiocarbon Chronology of Kopia, an Early Glass Manufacturing Centre in India
Right from the time of the Painted Grey Ware (PGW) culture, dating to c. 1200–600 bce , more than 210 archaeological sites in India have provided evidence of glass, but there has been no attempt to date the glass‐yielding layers by radiometric techniques. This has hampered the establishment of a chronology for the beginning and evolution of glass‐making in India. The site of Kopia was excavated by the first author for three seasons from 2004 to 2…
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison
The radiocarbon ( 14 C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce large datasets of annual resolution for calibration purposes using small amounts of wood. The radiocarbon intercomparison on single-year tree-ring samples presented here is the first to investigate specifically …
The Radiocarbon Chronology of Kopia, an Early Glass Manufacturing Centre in India
Right from the time of the Painted Grey Ware (PGW) culture, dating to c. 1200–600 bce , more than 210 archaeological sites in India have provided evidence of glass, but there has been no attempt to date the glass‐yielding layers by radiometric techniques. This has hampered the establishment of a chronology for the beginning and evolution of glass‐making in India. The site of Kopia was excavated by the first author for three seasons from 2004 to 2…
The New 250kV Single Stage AMS System at Cais, University of Georgia
A new 250kV single stage AMS accelerator (SSAMS) was installed at the Center for Applied Isotope Studies, University of Georgia. The accelerator is intended to be used primarily for radiocarbon measurements of natural and biobased samples, while all other samples such as marine, geological, atmospheric and archaeological samples are measured on the decade-old 500kV compact tandem accelerator (CAMS). The new AMS system is equipped with a 134-catho…
Decadal Changes of Radiocarbon in the Surface Bay of Bengal
Radiocarbon was measured in the surface seawater dissolved inorganic carbon (DIC) of the Bay of Bengal during November 2006. A meridional transect of the Δ 14 C in DIC was obtained from measurements in closely spaced samples collected roughly along 88°E. The Δ 14 C of these samples ranged from 44‰ to 57.7‰ (mean 51.8 ± 1.1‰, n = 12), and 38‰ at one station in the northern Bay of Bengal. The overall pattern of 14 C distribution in DIC of surface B…
The Radiocarbon Chronology of Kopia, an Early Glass Manufacturing Centre in India
Right from the time of the Painted Grey Ware (PGW) culture, dating to c. 1200–600 bce , more than 210 archaeological sites in India have provided evidence of glass, but there has been no attempt to date the glass‐yielding layers by radiometric techniques. This has hampered the establishment of a chronology for the beginning and evolution of glass‐making in India. The site of Kopia was excavated by the first author for three seasons from 2004 to 2…
The New 250kV Single Stage AMS System at Cais, University of Georgia
A new 250kV single stage AMS accelerator (SSAMS) was installed at the Center for Applied Isotope Studies, University of Georgia. The accelerator is intended to be used primarily for radiocarbon measurements of natural and biobased samples, while all other samples such as marine, geological, atmospheric and archaeological samples are measured on the decade-old 500kV compact tandem accelerator (CAMS). The new AMS system is equipped with a 134-catho…
Present-Day Radiocarbon Content of Select Flavoring Compounds Reveals Vanillin Production Pathway
Radiocarbon and stable isotope determination in foods, flavors, and beverages, for the authentication of source material and process of formation, is a well-established method of identity used in industry. New methods of provenance determination, using stable isotopes of oxygen and hydrogen, have added to the host of other isotopic methods used for characterizing natural or botanically derived products. The unambiguous determinant of a product's …
Effect of Beam Transmission of Stable Isotopes on Online δ 13 C for SSAMS
It is known that 12 C beam transmission through the accelerator decreases at high beam currents. This effect depends on machine design and varies across different types of AMS instruments. For beam currents of about 100 μA, the effect is small on the 500 kV tandem CAMS unit, whereas beam saturation is observed for similar high beam currents on the 250 kV SSAMS unit. While this effect is very evident for high 12 C beam currents, we have also obser…
Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison
The radiocarbon ( 14 C) calibration curve so far contains annually resolved data only for a short period of time. With accelerator mass spectrometry (AMS) matching the precision of decay counting, it is now possible to efficiently produce large datasets of annual resolution for calibration purposes using small amounts of wood. The radiocarbon intercomparison on single-year tree-ring samples presented here is the first to investigate specifically …
Geology (5 works) · Paleontology (5 works) · Radiocarbon dating (5 works) · Archaeology and ancient environmental studies (4 works) · Environmental Science (4 works) · Accelerator mass spectrometry (3 works) · Chemistry (3 works) · Isotope (3 works) · Nuclear physics (3 works) · Physics (3 works)