M E Fedi
Biographic Data
| ID | 5597377 |
|---|---|
| NAME | M E Fedi |
| GIVEN NAMES | M E |
| FAMILY NAME | Fedi |
| SIGNATURE | FEDI M E |
| VERIFIED | No |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 47 |
| WORKS AS AUTHOR | 12 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2017 |
| H-INDEX | 4 |
Strategies for Sampling Difficult Archaeological Contexts and Improving the Quality of Radiocarbon Data
After decades of collaborative experience between archaeologists and radiocarbon scientists, with the aim at producing radiocarbon dates capable of answering the most various research questions, it is now widely recognized that an accurate sampling strategy is the cornerstone of a solid 14 C-based chronology. In this paper, we discuss the sampling criteria required to obtain good quality 14 C data within a challenging archaeological context like …
A Simple and Effective Removal Procedure of Synthetic Resins to Obtain Accurate Radiocarbon Dates of Restored Artworks
The issue of contamination in radiocarbon dating is well known and can affect not only archaeological findings but also artworks. In the latter case, a possible source of contamination is represented by the products used during the restoration, e.g. resins of synthetic origin like the well-known Paraloid, applied to wood artifacts as a strengthening and preserving agent. In the case of incomplete removal prior to dating, the resins produce an app…
Optical Detection of Radiocarbon Dioxide
The first results of an optical method for measuring radiocarbon concentrations, based on mid-infrared laser spectroscopy of a carbon dioxide gas sample, are presented with the theoretical bases explained in detail. The first measurements on modern and highly enriched samples show the extreme linearity of this technique over more than 5 decades. An intercomparison with accelerator mass spectrometry (AMS) is performed both for modern and 14 C-dead…
Collagen Quality Indicators for Radiocarbon Dating of Bones
Radiocarbon dating of bones can be very useful in archaeological contexts, especially when dealing with funerary deposits lacking material culture, e.g. pottery vessels. 14 C measurements of bone samples are usually performed on the extracted collagen residue. The content and the quality of collagen can vary significantly, mainly depending on bone preservation and diagenesis. Generally speaking, environmental conditions such as low pH level of so…
Status of Sample Combustion and Graphitization Lines at INFN-Labec, Florence
Since installation of the new accelerator at INFN-LABEC in Florence in 2004, the workload has progressively increased in the radiocarbon dating laboratory, requiring a faster sample preparation throughput and greater versatility to allow for a larger variety of treated materials. The “standard” sample preparation line is based on an elemental analyzer (EA) for the combustion of the pretreated samples, and a vacuum line where the CO 2 is collected…
Intercomparison of 14 C Analysis of Carbonaceous Aerosols
Radiocarbon analysis of the carbonaceous aerosol allows an apportionment of fossil and non-fossil sources of airborne particulate matter (PM). A chemical separation of total carbon (TC) into its subtractions organic carbon (OC) and elemental carbon (EC) refines this powerful technique, as OC and EC originate from different sources and undergo different processes in the atmosphere. Although 14 C analysis of TC, EC, and OC has recently gained incre…
Erimi-Laonin Tou Porakou (Limassol, Cyprus)
The site area of Erimi-Laonin tou Porakou (Limassol, Cyprus) has been surveyed and systematically excavated since 2007 as a joint research project of the University of Florence and the Department of Antiquities of Cyprus. A focused investigation was dedicated to analyzing funerary evidence from the southern Cemetery (Area E), where 7 single-chamber graves were excavated. The offering goods assemblages from the burials point to a general date rang…
The Artemidorus Papyrus
Ancient papyrus manuscripts are one of the most fascinating sources for reconstructing not only ancient life habits but also past literature. Recently, an amazing document has come to the fore due to the heated debates it raised: the so-called Artemidorus papyrus. It is a very long scroll (about 2.5 m) composed of several fragments of different sizes, with inscriptions and drawings on both sides. On the recto of the document, a text about geograp…
A Beam Profile Monitor for Rare Isotopes in Accelerator Mass Spectrometry
In accelerator systems, beam lines are generally equipped with diagnostic elements, such as Faraday cups and beam profile monitors (BPM), to optimize beam transport. These diagnostic elements, or at least commercial ones, are designed to only work with continuous beams, and their typical maximum sensitivity is about few tens of pA. Thus, in the case of diagnosis of rare isotope beams in accelerator mass spectrometry (AMS), Faraday cups and BPMs a…
Copper production at Baratti (Populonia, southern Tuscany) in the early Etruscan period (9th–8th centuries BC)
Radiocarbon Reveals the Age of Two Precious Tombs in the Etruscan Site of Populonia-Baratti (Tuscany)
The archaeological site of Populonia-Baratti, in the southern part of Tuscany (Italy), was one of the most important centers in ancient Etruria, as seen in the evidence of metallurgical activities carried out at that time. During recent archaeological excavations (2005) in the ancient industrial area of Populonia, along the Baratti beach, 2 interesting tombs were found. The 2 graves were unusually located in an area dedicated to metallurgical act…
Radiocarbon Dating in Late-Roman and Medieval Contexts
A series of samples for radiocarbon dating were collected in 2005 from the Biblioteca Magliabechiana archaeological excavation area in the center of Florence, Italy, in a project directed by the Dipartimento di Archeologia e Storia delle Arti of the University of Siena, in cooperation with the Soprintendenza per i Beni Architettonici e per il Paesaggio per le province di Firenze e Prato. This area is located near the Uffizi Galleries, close to th…
Copper production at Baratti (Populonia, southern Tuscany) in the early Etruscan period (9th–8th centuries BC)
Collagen Quality Indicators for Radiocarbon Dating of Bones
Radiocarbon dating of bones can be very useful in archaeological contexts, especially when dealing with funerary deposits lacking material culture, e.g. pottery vessels. 14 C measurements of bone samples are usually performed on the extracted collagen residue. The content and the quality of collagen can vary significantly, mainly depending on bone preservation and diagenesis. Generally speaking, environmental conditions such as low pH level of so…
Status of Sample Combustion and Graphitization Lines at INFN-Labec, Florence
Since installation of the new accelerator at INFN-LABEC in Florence in 2004, the workload has progressively increased in the radiocarbon dating laboratory, requiring a faster sample preparation throughput and greater versatility to allow for a larger variety of treated materials. The “standard” sample preparation line is based on an elemental analyzer (EA) for the combustion of the pretreated samples, and a vacuum line where the CO 2 is collected…
A Simple and Effective Removal Procedure of Synthetic Resins to Obtain Accurate Radiocarbon Dates of Restored Artworks
The issue of contamination in radiocarbon dating is well known and can affect not only archaeological findings but also artworks. In the latter case, a possible source of contamination is represented by the products used during the restoration, e.g. resins of synthetic origin like the well-known Paraloid, applied to wood artifacts as a strengthening and preserving agent. In the case of incomplete removal prior to dating, the resins produce an app…
Strategies for Sampling Difficult Archaeological Contexts and Improving the Quality of Radiocarbon Data
After decades of collaborative experience between archaeologists and radiocarbon scientists, with the aim at producing radiocarbon dates capable of answering the most various research questions, it is now widely recognized that an accurate sampling strategy is the cornerstone of a solid 14 C-based chronology. In this paper, we discuss the sampling criteria required to obtain good quality 14 C data within a challenging archaeological context like …
Intercomparison of 14 C Analysis of Carbonaceous Aerosols
Radiocarbon analysis of the carbonaceous aerosol allows an apportionment of fossil and non-fossil sources of airborne particulate matter (PM). A chemical separation of total carbon (TC) into its subtractions organic carbon (OC) and elemental carbon (EC) refines this powerful technique, as OC and EC originate from different sources and undergo different processes in the atmosphere. Although 14 C analysis of TC, EC, and OC has recently gained incre…
Erimi-Laonin Tou Porakou (Limassol, Cyprus)
The site area of Erimi-Laonin tou Porakou (Limassol, Cyprus) has been surveyed and systematically excavated since 2007 as a joint research project of the University of Florence and the Department of Antiquities of Cyprus. A focused investigation was dedicated to analyzing funerary evidence from the southern Cemetery (Area E), where 7 single-chamber graves were excavated. The offering goods assemblages from the burials point to a general date rang…
The Artemidorus Papyrus
Ancient papyrus manuscripts are one of the most fascinating sources for reconstructing not only ancient life habits but also past literature. Recently, an amazing document has come to the fore due to the heated debates it raised: the so-called Artemidorus papyrus. It is a very long scroll (about 2.5 m) composed of several fragments of different sizes, with inscriptions and drawings on both sides. On the recto of the document, a text about geograp…
Optical Detection of Radiocarbon Dioxide
The first results of an optical method for measuring radiocarbon concentrations, based on mid-infrared laser spectroscopy of a carbon dioxide gas sample, are presented with the theoretical bases explained in detail. The first measurements on modern and highly enriched samples show the extreme linearity of this technique over more than 5 decades. An intercomparison with accelerator mass spectrometry (AMS) is performed both for modern and 14 C-dead…
A Beam Profile Monitor for Rare Isotopes in Accelerator Mass Spectrometry
In accelerator systems, beam lines are generally equipped with diagnostic elements, such as Faraday cups and beam profile monitors (BPM), to optimize beam transport. These diagnostic elements, or at least commercial ones, are designed to only work with continuous beams, and their typical maximum sensitivity is about few tens of pA. Thus, in the case of diagnosis of rare isotope beams in accelerator mass spectrometry (AMS), Faraday cups and BPMs a…
Radiocarbon Dating in Late-Roman and Medieval Contexts
A series of samples for radiocarbon dating were collected in 2005 from the Biblioteca Magliabechiana archaeological excavation area in the center of Florence, Italy, in a project directed by the Dipartimento di Archeologia e Storia delle Arti of the University of Siena, in cooperation with the Soprintendenza per i Beni Architettonici e per il Paesaggio per le province di Firenze e Prato. This area is located near the Uffizi Galleries, close to th…
Copper production at Baratti (Populonia, southern Tuscany) in the early Etruscan period (9th–8th centuries BC)
Radiocarbon Reveals the Age of Two Precious Tombs in the Etruscan Site of Populonia-Baratti (Tuscany)
The archaeological site of Populonia-Baratti, in the southern part of Tuscany (Italy), was one of the most important centers in ancient Etruria, as seen in the evidence of metallurgical activities carried out at that time. During recent archaeological excavations (2005) in the ancient industrial area of Populonia, along the Baratti beach, 2 interesting tombs were found. The 2 graves were unusually located in an area dedicated to metallurgical act…
The Artemidorus Papyrus
Ancient papyrus manuscripts are one of the most fascinating sources for reconstructing not only ancient life habits but also past literature. Recently, an amazing document has come to the fore due to the heated debates it raised: the so-called Artemidorus papyrus. It is a very long scroll (about 2.5 m) composed of several fragments of different sizes, with inscriptions and drawings on both sides. On the recto of the document, a text about geograp…
A Beam Profile Monitor for Rare Isotopes in Accelerator Mass Spectrometry
In accelerator systems, beam lines are generally equipped with diagnostic elements, such as Faraday cups and beam profile monitors (BPM), to optimize beam transport. These diagnostic elements, or at least commercial ones, are designed to only work with continuous beams, and their typical maximum sensitivity is about few tens of pA. Thus, in the case of diagnosis of rare isotope beams in accelerator mass spectrometry (AMS), Faraday cups and BPMs a…
Erimi-Laonin Tou Porakou (Limassol, Cyprus)
The site area of Erimi-Laonin tou Porakou (Limassol, Cyprus) has been surveyed and systematically excavated since 2007 as a joint research project of the University of Florence and the Department of Antiquities of Cyprus. A focused investigation was dedicated to analyzing funerary evidence from the southern Cemetery (Area E), where 7 single-chamber graves were excavated. The offering goods assemblages from the burials point to a general date rang…
Optical Detection of Radiocarbon Dioxide
The first results of an optical method for measuring radiocarbon concentrations, based on mid-infrared laser spectroscopy of a carbon dioxide gas sample, are presented with the theoretical bases explained in detail. The first measurements on modern and highly enriched samples show the extreme linearity of this technique over more than 5 decades. An intercomparison with accelerator mass spectrometry (AMS) is performed both for modern and 14 C-dead…
Collagen Quality Indicators for Radiocarbon Dating of Bones
Radiocarbon dating of bones can be very useful in archaeological contexts, especially when dealing with funerary deposits lacking material culture, e.g. pottery vessels. 14 C measurements of bone samples are usually performed on the extracted collagen residue. The content and the quality of collagen can vary significantly, mainly depending on bone preservation and diagenesis. Generally speaking, environmental conditions such as low pH level of so…
Status of Sample Combustion and Graphitization Lines at INFN-Labec, Florence
Since installation of the new accelerator at INFN-LABEC in Florence in 2004, the workload has progressively increased in the radiocarbon dating laboratory, requiring a faster sample preparation throughput and greater versatility to allow for a larger variety of treated materials. The “standard” sample preparation line is based on an elemental analyzer (EA) for the combustion of the pretreated samples, and a vacuum line where the CO 2 is collected…
Intercomparison of 14 C Analysis of Carbonaceous Aerosols
Radiocarbon analysis of the carbonaceous aerosol allows an apportionment of fossil and non-fossil sources of airborne particulate matter (PM). A chemical separation of total carbon (TC) into its subtractions organic carbon (OC) and elemental carbon (EC) refines this powerful technique, as OC and EC originate from different sources and undergo different processes in the atmosphere. Although 14 C analysis of TC, EC, and OC has recently gained incre…
A Simple and Effective Removal Procedure of Synthetic Resins to Obtain Accurate Radiocarbon Dates of Restored Artworks
The issue of contamination in radiocarbon dating is well known and can affect not only archaeological findings but also artworks. In the latter case, a possible source of contamination is represented by the products used during the restoration, e.g. resins of synthetic origin like the well-known Paraloid, applied to wood artifacts as a strengthening and preserving agent. In the case of incomplete removal prior to dating, the resins produce an app…
Strategies for Sampling Difficult Archaeological Contexts and Improving the Quality of Radiocarbon Data
After decades of collaborative experience between archaeologists and radiocarbon scientists, with the aim at producing radiocarbon dates capable of answering the most various research questions, it is now widely recognized that an accurate sampling strategy is the cornerstone of a solid 14 C-based chronology. In this paper, we discuss the sampling criteria required to obtain good quality 14 C data within a challenging archaeological context like …
Radiocarbon dating (11 works) · Archaeology (9 works) · Archaeology and ancient environmental studies (9 works) · Geology (9 works) · Accelerator mass spectrometry (8 works) · Chemistry (6 works) · Geography (6 works) · Materials Science (6 works) · Environmental Science (5 works) · Paleontology (5 works)