Conferences related to Isotopes

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2012 IEEE Ninth International Vacuum Electron Sources Conference (IVESC)

The conference will provide insights into a broad spectrum of scientific issues and applications driving vacuum electronics research.

  • 2010 8th International Vacuum Electron Sources Conference and Nanocarbon (IVESC)

    IVESC 2010 provides a unique international forum for the presentation of achievements, breakthroughs and developments in electron source technology. NANOCarbon 2010 will cover the latest advances in the field of nanomaterial synthesis, processing, characterization, properties and applications. It will provide an excellent opportunity to learn about the latest cutting edge research results in carbon nanotube, graphene and nanowire synthesis, development and applications.



Periodicals related to Isotopes

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Instrumentation and Measurement, IEEE Transactions on

Measurements and instrumentation utilizing electrical and electronic techniques.


Nuclear Science, IEEE Transactions on

All aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.



Most published Xplore authors for Isotopes

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Xplore Articles related to Isotopes

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Production of Tc-99m from naturally occurring molybdenum absent uranium

K. Pagdon; C. Gentile; A. Cohen; G. Ascione; G. Baker 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011

Technetium-99m (Tc-99m) is the world's most widely used medical isotope. Current production methods involve the irradiation of highly enriched uranium (HEU) and low enriched uranium (LEU) targets in nuclear reactors. Molybdenum-99 (Mo-99) is then extracted from these targets, which decays to Tc-99m. Currently, this process is centralized, as there are very few companies that manufacture Mo-99. In an effort to ...


GEANT4 simulations and experimental measurements of absolute source activity using modified sum-peak method

M. Dhibar; I. Mazumdar; G. Anil Kumar 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2015

In the present work, we have made Monte Carlo simulations of the response of 1" × 1" LaCb(Ce) and 1" × 1" LaBn(Ce) scintillation detectors using the radioactive sources emitting two gamma rays in cascade, namely, 60Co, 94Nb, 46Sc and 24Na for different values of source-detector separation. These simulations were done using GEANT4 toolkit that include radioactive decay module and ...


The importance of using the mixed neutron flux in activation analysis of D-<sup>3</sup>He fueled reactors

H. Y. Khater; M. E. Sawan [Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering, 1991

It is emphasized that the mixed neutron source should always be used in any activation and safety analysis performed for D-3He reactors. It is noted that performing any activation analysis by using the two components of the neutron source (D-D and D-T) separately leads to overestimating the induced activity. The overestimation is determined by the destruction rate of the parent ...


Graphical user interface for yield and doses estimations for cyclotron technetium production

X. Hou; A. Celler; M. Vuckovic; K. Buckley; F. Benard; P. Schaffer; T. Ruth 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC), 2013

Technetium-99m (99mTc) production using medical cyclotrons has been proposed to solve the anticipated shortage of 99mTc, which traditionally is obtained from the reactor-produced generators. Optimizing reaction conditions to maximize 99mTc production yield becomes crucial. Additionally, since besides 99mTc, many other undesirable stable and radioactive isotopes can be produced, reaction parameters must also minimize their production yields. Manual calculations of all ...


Signal Intensity Versus Temperature Characteristics of a Mixed<sup>87</sup>Rb/<sup>85</sup>Rb Resonance Cell for Use in a Rubidium Frequency Standard

N. Kuramochi; N. Oura; H. Miyoshi; Y. Tannaka IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1987

First Page of the Article ![](/xploreAssets/images/absImages/01539964.png)


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Educational Resources on Isotopes

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eLearning

Production of Tc-99m from naturally occurring molybdenum absent uranium

K. Pagdon; C. Gentile; A. Cohen; G. Ascione; G. Baker 2011 IEEE/NPSS 24th Symposium on Fusion Engineering, 2011

Technetium-99m (Tc-99m) is the world's most widely used medical isotope. Current production methods involve the irradiation of highly enriched uranium (HEU) and low enriched uranium (LEU) targets in nuclear reactors. Molybdenum-99 (Mo-99) is then extracted from these targets, which decays to Tc-99m. Currently, this process is centralized, as there are very few companies that manufacture Mo-99. In an effort to ...


GEANT4 simulations and experimental measurements of absolute source activity using modified sum-peak method

M. Dhibar; I. Mazumdar; G. Anil Kumar 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2015

In the present work, we have made Monte Carlo simulations of the response of 1" × 1" LaCb(Ce) and 1" × 1" LaBn(Ce) scintillation detectors using the radioactive sources emitting two gamma rays in cascade, namely, 60Co, 94Nb, 46Sc and 24Na for different values of source-detector separation. These simulations were done using GEANT4 toolkit that include radioactive decay module and ...


The importance of using the mixed neutron flux in activation analysis of D-<sup>3</sup>He fueled reactors

H. Y. Khater; M. E. Sawan [Proceedings] The 14th IEEE/NPSS Symposium Fusion Engineering, 1991

It is emphasized that the mixed neutron source should always be used in any activation and safety analysis performed for D-3He reactors. It is noted that performing any activation analysis by using the two components of the neutron source (D-D and D-T) separately leads to overestimating the induced activity. The overestimation is determined by the destruction rate of the parent ...


Graphical user interface for yield and doses estimations for cyclotron technetium production

X. Hou; A. Celler; M. Vuckovic; K. Buckley; F. Benard; P. Schaffer; T. Ruth 2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC), 2013

Technetium-99m (99mTc) production using medical cyclotrons has been proposed to solve the anticipated shortage of 99mTc, which traditionally is obtained from the reactor-produced generators. Optimizing reaction conditions to maximize 99mTc production yield becomes crucial. Additionally, since besides 99mTc, many other undesirable stable and radioactive isotopes can be produced, reaction parameters must also minimize their production yields. Manual calculations of all ...


Signal Intensity Versus Temperature Characteristics of a Mixed<sup>87</sup>Rb/<sup>85</sup>Rb Resonance Cell for Use in a Rubidium Frequency Standard

N. Kuramochi; N. Oura; H. Miyoshi; Y. Tannaka IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1987

First Page of the Article ![](/xploreAssets/images/absImages/01539964.png)


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IEEE-USA E-Books

  • Constraining the Denudational Response to Faulting

    Denudation links tectonics with climate by changing topographic loads and promoting the drawdown of CO2. Measurements of denudation are a key to understanding this link. In particular, they are required to test and calibrate geodynamic models, to evaluate the tectonic control on landscape evolution, to quantify the geomorphic impact of faulting and seismicity, and to assess the role of tectonically driven denudation in stabilizing Earth's climate. We review techniques used to measure denudation, and weathering on timescales relevant to faulting and the dynamics of fault zones, with particular attention paid to the use of hydrometric data and cosmogenic isotopes. Using selected examples, we illustrate the application of these techniques to problems ranging from soil formation and coseismic erosion of earthquake epicentral areas to the erosion of orogens and estimation of catchment-scale erosion and weathering fluxes. The examples show that faulting is the Earth's premier erosion and weathering engine. Globally, erosion scales with tectonic forcing. Locally, fluvial incision and landscape lowering are correlated with faulting and seismic activity. Thus, tectonically active areas yield disproportionate amounts of sediment. Erosion refreshes rock surfaces in these areas, thereby enhancing chemical weathering rates and CO2 consumption. The effects of climate variability and change are evident in the patterns and rates of erosion and weathering. However, they are almost always superimposed on a stronger tectonic signal. We highlight the potential of cosmogenic nuclides to quantify present and past rates and patterns of denudation associated with faulting. Finally, we identify outstanding challenges for future work: (a) to characterize crustal deformation, climate, and denudation over their full range of time and length scales; (b) to analyze the geomorphic imp act and stratigraphic record of recent earthquakes; (c) to identify the processes, thresholds, and feedback mechanisms that control global weathering and regulate the long-term climate; and (d) to provide constraints that help to mitigate the risks associated with geomorphic processes triggered by earthquakes. Constraining the denudational response to faulting will help to meet these challenges.



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