671 resources related to Scintillation counters
- Topics related to Scintillation counters
- IEEE Organizations related to Scintillation counters
- Conferences related to Scintillation counters
- Periodicals related to Scintillation counters
- Most published Xplore authors for Scintillation counters
All areas of ionizing radiation detection - detectors, signal processing, analysis of results, PET development, PET results, medical imaging using ionizing radiation
Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions
Real time computing applications involving both hardware and software development in nuclear, particle, plasma and other related fields.
The RADECS international conference is held once a year in Europe, covering the latest progress in the field of radiation effects on electronics, optoelectronics devices and systems and their behaviou and reliability under ionizing high energy radiation. This conference aims at bringing together scientists and industry from space, aviation, ground applications and accelerators and at the same time industrial exhibitors, together initiating contracts, collaborations and paving the way to tomorrow’s requirements. This year’s conference is organized by CERN (European Laboratory for Nuclear Research). The first day of the conference will be covered by a short course entitled “From Space, To Ground and Below”, to introduce how to deal with radiation effects within different environments such as Space, Avionic, Ground Level and Particle accelerators. The technical program will then feature oral and poster technical sessions, a data workshop and an industrial exhibition.
Nuclear instrumentation and measurement methods in nuclear environments are key aspects that contribute to the quality of scientific programmes in the fields of physics, energy, the fuel cycle and waste management. Furthermore, measurements relying on nuclear physics now play an important role in various fields of application such as biology, medicine and the environment. The ANIMMA conference aims at uniting, consolidating and organizing an international network of scientific researchers and experts from industry, research institutes, academic dealing with nuclear instrumentation and measurement methodology activities (R&D, Innovation and applications).ANIMMA 2017 is the fifth of a series of conferences devoted to endorsing and promoting scientific and technical activities based on nuclear instrumentation and measurements.The main objective of ANIMMA conference is to unite the various scientific communities not only involved in nuclear instrumentation and measurements, but also in
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The Transactions publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.
Imaging methods applied to living organisms with emphasis on innovative approaches that use emerging technologies supported by rigorous physical and mathematical analysis and quantitative evaluation of performance.
Basic and applied papers dealing both with engineering, physics, chemistry, and computer science and with biology and medicine with respect to bio-molecules and cells. The content of acceptable papers ranges from practical/clinical/environmental applications to formalized mathematical theory. TAB #73-June 2001. (Original name-IEEE Transactions on Molecular Cellular and Tissue Engineering). T-NB publishes basic and applied research papers dealing with the study ...
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.
IEEE Transactions on Nuclear Science, 1983
The setting-up and optimization of antiprotons injected into the Antiproton Accumulator was initially based upon the measurement of circulating antiprotons by integration of their Schottky signals. This has now been supplemented by amplitude distribution measurements using an internal target. Also, the more readily detectable pions, muons and electrons, injected along with the antiprotons, give information on machine aperture and orbits, ...
IEEE Transactions on Nuclear Science, 1982
The entire electronic trigger system for a large experiment has been designed and constructed specifically for that experiment. The only commercial logic used was for monitoring, primarily scalers. This was not entirely by choice. The needed logic functions were not available, and the number of discriminator, delay, and latch channels required made using standard NIM logic modules an unpleasant solution. ...
IEEE Nuclear Science Symposium Conference Record, 2005, 2005
Lanthanum bromide (LaBr/sub 3/) scintillation detectors are currently being developed for use in time-of-flight (TOF) PET. In recent years, studies have been aimed at the parameterization of the LaBr/sub 3/ scintillation properties. We have utilized the findings of these studies in the development of simulation tools to investigate and predict the performance of TOF PET detectors of realistic geometries. Here, ...
1990 IEEE Nuclear Science Symposium Conference Record, 1990
1999 IEEE Nuclear Science Symposium. Conference Record. 1999 Nuclear Science Symposium and Medical Imaging Conference (Cat. No.99CH37019), 1999
Optimization of operation characteristics was carried out for various detection systems, in particular, for a large thin NaI(Tl) plate coupled with a set of photomultipliers (medical gamma-camera) and long prisms for computer tomographs. For that aim, light output was calculated as a function of scintillation point coordinates. For long prisms, light collection is controlled via choice of roughness degree of ...
The setting-up and optimization of antiprotons injected into the Antiproton Accumulator was initially based upon the measurement of circulating antiprotons by integration of their Schottky signals. This has now been supplemented by amplitude distribution measurements using an internal target. Also, the more readily detectable pions, muons and electrons, injected along with the antiprotons, give information on machine aperture and orbits, which can serve as a monitor of injection conditions during antiproton stacking.
The entire electronic trigger system for a large experiment has been designed and constructed specifically for that experiment. The only commercial logic used was for monitoring, primarily scalers. This was not entirely by choice. The needed logic functions were not available, and the number of discriminator, delay, and latch channels required made using standard NIM logic modules an unpleasant solution. As built, the entire system, including power supplies, a NIM bin and a CAMAC crate for monitoring and control, fits easily in 3 relay racks. These racks are located in the experimental hall, near the experiment, and are accessible only via CAMAC when the beam is on. All functions of the system are programmed with special CAMAC modules.
Lanthanum bromide (LaBr/sub 3/) scintillation detectors are currently being developed for use in time-of-flight (TOF) PET. In recent years, studies have been aimed at the parameterization of the LaBr/sub 3/ scintillation properties. We have utilized the findings of these studies in the development of simulation tools to investigate and predict the performance of TOF PET detectors of realistic geometries. Here, we present a model to simulate the combined scintillator and photomultiplier tube (PMT) response to incident photons. This model allows us to study the effects of crystal response, geometry, and surface finish, PMT response, transit time spread, and noise, as well as discrimination techniques on the coincidence resolving time achievable in various detector configurations. Results from the simulations are benchmarked against several experimental measurements with two different PMTs and LaBr/sub 3/ crystals of varying cerium concentration and geometry. A comparison is also made to the time resolution achievable with LYSO. Good agreement between measurement and simulation has been achieved with detectors consisting of 4/spl times/4/spl times/30 mm/sup 3/ crystals suitable for use in a TOF PET scanner. Ultimately, this guides the improvement of TOF detectors by identifying the individual contribution of each detector component on the time resolution that can be achieved.
Optimization of operation characteristics was carried out for various detection systems, in particular, for a large thin NaI(Tl) plate coupled with a set of photomultipliers (medical gamma-camera) and long prisms for computer tomographs. For that aim, light output was calculated as a function of scintillation point coordinates. For long prisms, light collection is controlled via choice of roughness degree of the top face opposite to photoreceiver. An enhancement of roughness entails an increase of the light output from the crystal point most remote from the photoreceiver; this can be, used for diminishing the axial nonuniformity of light output. Spatial resolution of a gamma-camera was optimized via choice of the lightguide thickness (its optimal value equals to the PMT diameter multiplied by 0.3).
The change in the relative light output of the alpha and gamma response of scintillators with temperature has been measured. BGO, CaF/sub 2/(Eu), NaI(Tl) and YAP(Ce) were investigated over the temperature range from -20/spl deg/C to 70/spl deg/C. The GEE and the normalized light output for alpha particles from Am/sup 241/ and for gamma rays from Na/sup 22/ are presented in tabular and graphical forms.
Some properties of different types of photomultipliers which are now in commercial use in France, such as background linearity at high currents, transit time fluctuations, and stability for a counting, are discussed. In addition, some properties of different types of scintillators in commercial use or under development are presented. These include amplitude, light spectrum and decay time temperature for various mineral or organic (solid and liquid) scintillators, and of several gaseous mixtures. The latter part of this paper describes briefly two new French applications of scintillation techniques: gamma spectrometer for aerial prospecting and the use of scintillation counters for measuring thermal neutron fluxes in reactors.
We discuss the application of digital pulse shape algorithms to n//spl gamma/ pulse shape discrimination (PSD) in boron-10 enriched liquid scintillator, where the use of digital techniques has potential applications for neutron monitors. High-speed flash analog-to-digital converters have opened up new possibilities for scintillator detector systems based upon digital event-by- event data acquisition. Using an 8-bit 1-GS/s waveform digitizer, we sampled the scintillation detector signals with nanosecond time resolution to extract event parameters such as pulse height and rise time. Hence, we have studied the variations in pulse shape and rise times for gamma rays and neutrons and the quality of separation of these events. Even using a simple 10-90% rise- time algorithm, we observe good gamma/neutron separation. We present the PSD figure-of-merit obtained using this digital technique.
The behaviour of xenon and argon-xenon gas proportional scintillation counters is con sidered. For X-rays, ranges of window area are defined showing competition with semiconductor detectors. Data for primary scintillation of X-rays and alpha particles are included. Relative efficiencies of tetraphenylbutadiene, p-terphenyl, diphenyl-stilbene, sodium salicylate and p-quaterphenyl were measured.
A brief study has been made of the dependency of pulse heights obtained from alpha particles in gas scintillation counters on the gas and wavelength shifter used. Constant and reproducible pulse heights were obtained either by chilling the scintillation cylinder to inhibit evolution of contaminants or by chemically removing them in a uranium furnace. Relative pulse heights have been obtained for various wavelength shifters, gases and gas mixtures, and reflectors. When the waveshifter was vacuum evaporated directly onto the tube face, the optimum thickness was found to be ~20 μg/cm2, with tetraphenylbutadiene giving ~1/3 more light than quaterphenyl. Using a 2-inch long aluminum cylinder with the alpha particle source at one end and the phototube at the other, the pulse height was further increased by a factor of 5 by smoking the cylinder with MgO which was subsequently coated with waveshifter. The relative pulse heights for different gases in such a system were: Xe:Kr:A:Ne:He = 32:16:5:1:10. A NaI(Tl) crystal in similar reflector system gave a pulse height of 72. The rise time of the pulses in a xenon counter using an RCA-6342 tube coated with quaterphenyl was found to be on the order of 3.5 mμ sec. In such a system the pulse height was found to be a linear function of energy for protons, deuterons, and helium ions and to be independent of the type of particle producing the scintillations.