2,793 resources related to Gamma rays
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2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature 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.
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.
A. London; R. C. Wang IEEE Transactions on Nuclear Science, 1978
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A. Wanke; A. Paproth; J. Uhlemann; K. J. Wolter 2009 32nd International Spring Seminar on Electronics Technology, 2009
This paper describes the influences of different sterilisation procedures regarding to the behaviour of biocompatible packaging materials. The effects of these procedures on coated substances are researched, i.e. adhesive strength towards the substrate, surface energy and roughness. Non-sterilised, coated samples are used as references. Additionally studies of former samples are analysed to detect the influences of long exposure times, especially ...
S. Majewski; B. Kross; L. Majewski; M. Pohl; D. Steinbach; A. G. Weisenberger; R. Wojcik Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE, 1996
An imaging gamma detector was developed using a 5" diameter Hamamatsu R3292 position sensitive PMT and GSO crystal scintillator plates from Hitachi. Plate sizes from 4×4 cm to 8×8 cm and thickness from 1.25 mm to 2.5 mm were used to detect 28-35 keV photons from 125I and 140 keV gamma's from 99mTc. Several novel features of the detector were ...
S. Watanabe; T. Takahashi; Y. Okada; G. Sato; M. Kouda; T. Mitani; Y. Kobayashi; K. Nakazawa; Y. Kuroda; M. Onishi IEEE Transactions on Nuclear Science, 2002
We describe a stacked detector made of thin cadmium telluride (CdTe) diode detectors. By using a thin CdTe device, we can overcome the charge loss problem due to the small mobility and short lifetime of holes in CdTe or cadmium zinc telluride (CdZnTe) detectors. However, a CdTe detector with a thickness of more than 5 mm is needed for adequate ...
L. Martinotto; F. Peruzzotti; F. Palmieri; G. C. Montanari; S. Rai Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on, 2000
This paper presents results of an investigation having the aim to compare electrical and oxidative performances of chemically and radiation cross-linked polyethylene. Gamma irradiated and peroxide crosslinked specimens are characterized through dc space charge observations, as well as ac electric strength and oxidation induction time measurements. Similar results, in terms of space charge accumulation and electric strength, are found for ...
Nuclear Science Symposium, 1997. IEEE, 1997
This work investigates the use of annihilation photons from gamma-ray-induced electron-positron pair production to inspect objects when only one side is accessible. The Z2-dependence of the pair-production cross section and the high penetration of 511-keV photons allow this method to differentiate high-Z materials in low-Z matrices. The experimental results for the dependence of the back-streaming photon yield on Z shows ...
Nuclear Science, IEEE Transactions on, 2008
A BC523A liquid scintillator loaded with boron-10 was tested as a detector for both fast and thermal neutrons. A pulse shape discrimination (PSD) method based on a zero-crossing principle was applied to distinguish between neutron and gamma radiation. High quantum efficiency Photonis XP5500B photomultiplier was used to enhance light detection from the scintillator. This allowed a good registration of the ...
Nuclear Science, IEEE Transactions on, 1981
We have calibrated the relative efficiency up to 9.7 MeV for two coaxial detectors, one Ge(Li) and one high purity Ge. The efficiency curves were determined by using a combination of standard radioactive sources and (n, γ) reactions. Based on the result of this work, the general slope of the two detector efficiency curves appears to be similar and in ...
Radiation and Its Effects on Components and Systems, 1999. RADECS 99. 1999 Fifth European Conference on, 1999
The Standard Radiation Environment Monitor (SREM) was designed in a cooperation between ESA-ESTEC, PSI and Contraves Space-the manufacturer. The monitor detects cosmic particles using 3 direction sensitive Si detectors. Total dose measurement is performed with internal and external RADFETs located at selected positions on the satellite. Their sensitivity towards protons and gammas was characterised for various energies, dose rates and ...
Nuclear Science, IEEE Transactions on, 1983
The level structure of Pd-105 has been studied from the decay of Ag-105g. The energies and intensities of 50 gamma rays have been precisely measured using a 64.1 c.c. Ge(Li) detector (FWHM=2.1 keV at 1.33 MeV). The gamma ray singles spectrum measurements confirm the existence of the 158.93, 167.5, 202.17, 216.11, 382.5, 486.65, 576.64, 583.01, 844.34, 860.20, 921.23, 929.01 and ...
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.
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