Gamma rays
3,037 resources related to Gamma rays
Conferences related to Gamma rays
Back to Top2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and RoomTemperature Semiconductor Detector Workshop (NSS/MIC/RTSD)
The NSS/MIC offers an outstanding opportunity for scientists and engineers interested in the fields of nuclear science, radiation detection, accelerators, high energy physics and astrophysics, and related software to present their latest developments and ideas. The scientific program provides a comprehensive review of the latest developments in technology and covers a wide range of applications from radiation and accelerator instrumentation, new detector materials, to complex detector systems for physical sciences, and advanced imaging systems for biological and medical research.
2015 IEEE International Conference on Plasma Sciences (ICOPS)
Basic Processes in Fully and Partially Ionized Plasmas; Microwave Generation and Plasma Interactions; Charged Particle Beams and Sources; High Energy Density Plasmas and Applications; Industrial, Commercial, and Medical Plasma Applications; Plasma Diagnostics; Pulsed Power and other Plasma Applications.
2013 IEEE 25th Symposium on Fusion Engineering (SOFE)
SOFE covers all engineering aspects of existing and future fusion experiments, development facilities, and power plants for magnetic and inertial fusion energy.
Periodicals related to Gamma rays
Back to TopNuclear 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.
Xplore Articles related to Gamma rays
Back to TopDevelopment of a thin film 9.17 MeV gamma ray production target for the contraband detection system
S. T. Melynychuk; R. Meilunas Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 1999
We will describe the development of a thin film 13C target for generating 9.17 MeV gamma rays via a (p,γ) reaction for use in a commercial contraband detection system (CDS) employing nuclear resonance absorption. The target required for this system must consist of a thin 13C film backed by a high Z proton stopping layer. It must be able to ...
Takehiro Tomitani IEEE Transactions on Nuclear Science, 1981
In positron CT, the path difference of annhilation pair gamma rays can be measured by timeofflight (TOF) difference of pair gamma rays. This TOF information gives us rough position information along a projection line and will reduce noise propagation in the reconstruction process. A reconstruction algorithm for TOFpositron computed tomography (PCT) based on the back projection with 1dimensional weight and ...
J. Ostling; A. Brahme; M. Danielsson; T. Francke; C. Iacobaeus; V. Peskov 2002 IEEE Nuclear Science Symposium Conference Record, 2002
We performed studies of operation of various holetype gas multiplication structures (GEM, capillary plates and others) at very high fluxes of Xrays (<60 keV  brehmstrahlung) and pulsed gamma radiation (< 50 MeV bremsstrahlung). In the case of Xrays the counting rate was 105106 Hz/mm2 and in the case of gamma it reached up to 109 Hz/mm2 during the pulses. ...
Measurement of neutron binding energy of <sup>36</sup>Cl for a determination of N<inf>A</inf>h
M. Jentschel; P. Becker; J. Krempel; B. Lauss; G. Mana; P. Mutti 2008 Conference on Precision Electromagnetic Measurements Digest, 2008
Precise wave length measurements of gamma rays emitted after thermal neutron capture reaction allow the determination of the neutron's binding energy within a nucleus. Comparing this energy to atomic mass measurements gives direct access to the molar Planck constant NAh. This result will be of utmost importance in the context of a redefinition of the kilogram via the Planck and ...
3″ × 3″ LaBr3:Ce position sensitivity with multianode PMT readout
Agnese Giaz; Nives Blasi; Franco Camera; Ciro Boiano; Sergio Brambilla; Benedicte Million; Stefano Riboldi 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2014
The response of a cylindrical continuous 3" × 3" LaBr3:Ce crystal coupled to four Position Sensitive photomultipliers (PSPMT) was studied using a 1 mm collimated beam of 662 keV gamma rays. The LaBr3:Ce crystal is sealed in a capsule and has diffusive/reflective surfaces, the energy resolution is 21 keV (FWHM) at 662 keV, measured using a R6233100sel PMT. The PSPMTs ...
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Educational Resources on Gamma rays
Back to TopeLearning
Development of a thin film 9.17 MeV gamma ray production target for the contraband detection system
S. T. Melynychuk; R. Meilunas Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366), 1999
We will describe the development of a thin film 13C target for generating 9.17 MeV gamma rays via a (p,γ) reaction for use in a commercial contraband detection system (CDS) employing nuclear resonance absorption. The target required for this system must consist of a thin 13C film backed by a high Z proton stopping layer. It must be able to ...
Takehiro Tomitani IEEE Transactions on Nuclear Science, 1981
In positron CT, the path difference of annhilation pair gamma rays can be measured by timeofflight (TOF) difference of pair gamma rays. This TOF information gives us rough position information along a projection line and will reduce noise propagation in the reconstruction process. A reconstruction algorithm for TOFpositron computed tomography (PCT) based on the back projection with 1dimensional weight and ...
J. Ostling; A. Brahme; M. Danielsson; T. Francke; C. Iacobaeus; V. Peskov 2002 IEEE Nuclear Science Symposium Conference Record, 2002
We performed studies of operation of various holetype gas multiplication structures (GEM, capillary plates and others) at very high fluxes of Xrays (<60 keV  brehmstrahlung) and pulsed gamma radiation (< 50 MeV bremsstrahlung). In the case of Xrays the counting rate was 105106 Hz/mm2 and in the case of gamma it reached up to 109 Hz/mm2 during the pulses. ...
Measurement of neutron binding energy of <sup>36</sup>Cl for a determination of N<inf>A</inf>h
M. Jentschel; P. Becker; J. Krempel; B. Lauss; G. Mana; P. Mutti 2008 Conference on Precision Electromagnetic Measurements Digest, 2008
Precise wave length measurements of gamma rays emitted after thermal neutron capture reaction allow the determination of the neutron's binding energy within a nucleus. Comparing this energy to atomic mass measurements gives direct access to the molar Planck constant NAh. This result will be of utmost importance in the context of a redefinition of the kilogram via the Planck and ...
3″ × 3″ LaBr3:Ce position sensitivity with multianode PMT readout
Agnese Giaz; Nives Blasi; Franco Camera; Ciro Boiano; Sergio Brambilla; Benedicte Million; Stefano Riboldi 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2014
The response of a cylindrical continuous 3" × 3" LaBr3:Ce crystal coupled to four Position Sensitive photomultipliers (PSPMT) was studied using a 1 mm collimated beam of 662 keV gamma rays. The LaBr3:Ce crystal is sealed in a capsule and has diffusive/reflective surfaces, the energy resolution is 21 keV (FWHM) at 662 keV, measured using a R6233100sel PMT. The PSPMTs ...
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IEEEUSA EBooks

Detection and Estimation of Radiological Sources
This chapter considers several inferential problems regarding radiological sources, including estimation of point and distributed sources using a collection of static observers and source search and estimation using mobile observers. It presents the detection and localization of radiological materials that emit gamma rays, the highly penetrating electromagnetic radiations that can travel large distances through air. The chapter devotes to batch estimation of point radiological sources using measurements from a fixed network of sensors. The Bayesian approach to inference assumes that the unknown parameter of interest is a random variable. In this framework, inferential procedures are based on the posterior distribution, that is, the distribution of the parameter conditional on the observations. Bayesian estimation was favored because of the possibility of developing accurate and computationally efficient approximations of optimal Bayesian estimators for large dimensional parameters. The Renyi divergence is only one of a number of candidates for measuring the difference between two distributions.

Fundamentals of Electrical Discharges
Natural phenomena, such as gamma rays produced by radioactive decay processes in the soil and cosmic radiation originating from solar flares and other galactic objects, can ionize the air molecules. This chapter first discusses ionization and deionization processes in gases. This is followed by a discussion on ionization and attachment coefficients. Two typical breakdown mechanisms occur in gases, each of them operating under specifically favorable conditions: Townsend's mechanism and the streamer mechanism. Corona discharges in air can burn on the overstressed zones of hot electrodes. This kind of discharge occupies a short layer, attached to the energized conductor. When a conductor is in corona, then the electric field on the surface is somehow influenced by the surrounding ion space charge. Kaptzov's hypothesis (KH) relates to the assumption that the space charge emitted into the interelectrode gap is in amounts that hold the surface field at the onset level.