Conferences related to Beta rays

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE International Electron Devices Meeting (IEDM)

the IEEE/IEDM has been the world's main forum for reporting breakthroughs in technology, design, manufacturing, physics and the modeling of semiconductors and other electronic devices. Topics range from deep submicron CMOS transistors and memories to novel displays and imagers, from compound semiconductor materials to nanotechnology devices and architectures, from micromachined devices to smart -power technologies, etc.


2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.


2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)

All areas of ionizing radiation detection - detectors, signal processing, analysis of results, PET development, PET results, medical imaging using ionizing radiation


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Periodicals related to Beta rays

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Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

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.


Electron Device Letters, IEEE

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronic devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Electronics Packaging Manufacturing, IEEE Transactions on

Design for manufacturability, cost and process modeling, process control and automation, factory analysis and improvement, information systems, statistical methods, environmentally-friendly processing, and computer-integrated manufacturing for the production of electronic assemblies, products, and systems.


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Most published Xplore authors for Beta rays

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Xplore Articles related to Beta rays

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HgI/sub 2/ low energy beta particle detector

IEEE Transactions on Nuclear Science, 1990

A HgI/sub 2/ device structure was designed and tested which allows HgI/sub 2/ to be used to make low energy beta particle detectors. The devices detected tritium beta particles with an efficiency of about 25%. A protective encapsulant has been developed which should protect the devices for up to 20 years and will attenuate only a small fraction of the ...


Segmented Ge detector rejection of internal beta activity produced by neutron irradiation

IEEE Transactions on Nuclear Science, 1991

Future Ge spectrometers flown in space to observe cosmic gamma-ray sources will incorporate segmented detectors to reduce the background from radioactivity produced by energetic particle reactions. To demonstrate the effectiveness of a segmented Ge detector in rejecting background events due to the beta decay of internal radioactivity, a laboratory experiment has been carried out in which radioactivity was produced in ...


A Lithium Drifted Germanium Surface Barrier Detector

IEEE Transactions on Nuclear Science, 1965

This paper describes the fabrication procedure and some properties of thin- window lithium-compensated germanium nuclear-particle detectors. Their response to various nuclear particles is illustrated with typical spectra. In addition, some data on collection times in germanium and silicon detectors are presented along with a description of experiments concerning the relative energies to form an electron-hole pair in silicon and germanium ...


CMOS compatible Multiple Power-Output MEMS Radioisotope μ-Power Generator

2006 International Electron Devices Meeting, 2006

The authors demonstrate a novel 6.6% high-efficiency CMOS compatible piezoelectric aluminum nitride (AlN) thin-film based integrated β -radioisotope-powered electro-mechanical power generator (IREMPG). the authors integrate silicon betavoltaics with radioisotope actuated piezoelectric unimorph converters to efficiently utilize both kinetic energy and charge of the emitted beta particles for electrical power generation. IREMPG has three output ports generating (1) a 2.8MHz pulse ...


D-microgeiger: a microfabricated beta-particle detector with dual cavities for energy spectroscopy

18th IEEE International Conference on Micro Electro Mechanical Systems, 2005. MEMS 2005., 2005

This paper reports on micromachined Geiger counters fabricated from stacks of glass and Si wafers. As a beta particle passes through, a bias applied between two enclosed electrodes generates electron cascades in the gas between them. This results in a current pulse or "count". A single die of 2 cm/sup 2/ had 6 independent chambers ranging in size from 8/spl ...


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Educational Resources on Beta rays

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IEEE-USA E-Books

  • HgI/sub 2/ low energy beta particle detector

    A HgI/sub 2/ device structure was designed and tested which allows HgI/sub 2/ to be used to make low energy beta particle detectors. The devices detected tritium beta particles with an efficiency of about 25%. A protective encapsulant has been developed which should protect the devices for up to 20 years and will attenuate only a small fraction of the beta particles. It is noted that the devices hold significant promise to provide a practical alternative to liquid scintillation counters and gas flow-through proportional counters.<<ETX>>

  • Segmented Ge detector rejection of internal beta activity produced by neutron irradiation

    Future Ge spectrometers flown in space to observe cosmic gamma-ray sources will incorporate segmented detectors to reduce the background from radioactivity produced by energetic particle reactions. To demonstrate the effectiveness of a segmented Ge detector in rejecting background events due to the beta decay of internal radioactivity, a laboratory experiment has been carried out in which radioactivity was produced in the detector by neutron irradiation. A /sup 252/Cf source of neutrons was used to produce, by neutron capture on /sup 74/Ge (36.5% of natural Ge) in the detector itself, /sup 75/Ge (t/sub 1/2/=82.78 min), which decays by beta emission with a maximum electron kinetic energy of 1188 keV. By requiring that an ionizing event deposit energy in two or more of the five segments of the detector, each about 1-cm thick, the beta particles, which have a range of about 1-mm, are rejected, while most external gamma rays incident on the detector are counted.<<ETX>>

  • A Lithium Drifted Germanium Surface Barrier Detector

    This paper describes the fabrication procedure and some properties of thin- window lithium-compensated germanium nuclear-particle detectors. Their response to various nuclear particles is illustrated with typical spectra. In addition, some data on collection times in germanium and silicon detectors are presented along with a description of experiments concerning the relative energies to form an electron-hole pair in silicon and germanium at liquid- nitrogen temperature. Finally, the relative response of germanium and silicon detectors to fast neutrons is compared.

  • CMOS compatible Multiple Power-Output MEMS Radioisotope μ-Power Generator

    The authors demonstrate a novel 6.6% high-efficiency CMOS compatible piezoelectric aluminum nitride (AlN) thin-film based integrated β -radioisotope-powered electro-mechanical power generator (IREMPG). the authors integrate silicon betavoltaics with radioisotope actuated piezoelectric unimorph converters to efficiently utilize both kinetic energy and charge of the emitted beta particles for electrical power generation. IREMPG has three output ports generating (1) a 2.8MHz pulse remotely detectable up to 6 feet, (2) a 2.95μW low-frequency pulse across 525kΩ, for 2s every 400s, at 4.4% efficiency, and (3) 400pW-700pW average continuous power across 33MΩ at 2.78% maximum efficiency. Individual IREMPGs can be arrayed in series or parallel configurations for higher power output, and used to power low-power sensor network nodes

  • D-microgeiger: a microfabricated beta-particle detector with dual cavities for energy spectroscopy

    This paper reports on micromachined Geiger counters fabricated from stacks of glass and Si wafers. As a beta particle passes through, a bias applied between two enclosed electrodes generates electron cascades in the gas between them. This results in a current pulse or "count". A single die of 2 cm/sup 2/ had 6 independent chambers ranging in size from 8/spl times/8 mm/sup 2/ to 1/spl times/3 mm/sup 2/. Helium and neon, which have different voltage bias requirements, were separately evaluated as background gases. In tests the device was found to detect incident beta particles from a Uranium-238, and calibrated /sup 90/Sr, /sup 60/Co, and /sup 204/T1 sources, of 0.1-1 /spl mu/Curie strength. In the D-microGeiger incident beta particles pass through two independent cavities that are separated by a glass barrier, which provides calibrated energy absorption. By comparing the counts in the two cavities, information about the energy of the radiation is determined. This provides an inherent ability to discern the chemical nature of the isotope, not just the presence of radiation.

  • Autoradiography of high energy radionuclides using a microchannel plate detector

    Reports on the use of a microchannel plate-based imaging system for autoradiography of biological samples labeled with radionuclides emitting high-energy (140-2000 keV) beta particle and gamma radiation. Samples can be imaged sufficiently rapidly (exposures 1-2 hours for electrophoresis gels, /spl sim/24 hours for thin tissue sections) to allow imaging of nuclides with short half-lives, such as /sup 99m/Tc. Measurement of the detector efficiencies for /sup 99m/Tc and /sup 188/Re isotopes is reported. Images of a variety of samples labeled with clinically important therapeutic radionuclides, /sup 67/Cu and /sup 131/I are presented. In particular the authors report preliminary images of radiolabeled anti-MUCI mucin antibody C595 currently being developed as a therapeutic conjugate for treating bladder, breast and ovarian tumours.

  • Self Quenching Streamer Mode in Quenching Gases Initiated by Alpha Particles

    The transition from a proportional to a self quenching streamer mode, as a function of track length and angle, was investigated in a single wire chamber filled with either pure DME or isobutane. The chamber was irradiated with <sup>241</sup>Am alpha particles. An investigation of multistreamer events in DME due to alpha particles entering the chamber at 20deg with track length ~ 4 mm gave an estimate of a dead zone, defined as the product of dead length and dead time, to be less than 0.1 mus middot cm. This value is 3 orders of magnitude less than those observed by other groups for noble gases based mixtures. No second streamers were observed with pure isobutane for similar tracks.

  • Radionuclide mapping using a Position Sensitive Photomultiplier Tube and a germanium detector

    This paper demonstrates simultaneous two-dimensional mapping of multiple radionuclides which are present in a sample. The technique, which is based on position sensitive beta-gamma coincidence measurement, is applicable to most radionuclides that decay by beta emission followed by the emission of a coincident gamma-ray. In the present work, a Position Sensitive Photomultiplier Tube is used for imaging the beta particles while a Ge detector is used to identify the radionuclides by detecting the coincident gamma-rays.<<ETX>>

  • Detector systems for imaging neutron activation analysis

    This paper compares the performance of two imaging detector systems for the new technique of imaging neutron activation analysis (imaging NAA). The first system is based on secondary electron imaging, and the second employs a position sensitive charged particle detector for direct localization of beta particles. The secondary electron imaging system has demonstrated a position resolution of 20 /spl mu/m. The position sensitive beta detector has the potential for higher efficiencies with resolution being a trade off. Results presented show the feasibility of the two imaging methods for different applications of imaging NAA.<<ETX>>

  • Temperature effect on the performance characteristics of beta rays open air corona streamer counter

    Open air three electrode (point-grid-plane) corona streamer counter with a preamplification gap has been utilized for detecting weakly ionizing beta rays. This is based on the fact that when the primary electrons produced by beta rays are multiplied in the external preamplification gap, they form a trigger electron swarm before entering the counter, produce the same effect as the direct incidence of strongly ionizing particle in the corona counter, and allow the counter to operate efficiently. However, operation of this counter in open air as one of its most attractive features requires a complete analysis of the counter response to the changes of ambient conditions. The effect of temperature on the beta particle corona counter performance is studied. A theoretical model is suggested to calculate the counter operating voltage as well as the beta particles triggered corona pulse characteristics at different temperatures (20/spl deg/C-50/spl deg/C). The temperature effects on the counter-energy response is explained. A compensation for the errors due to temperature effects is suggested. All the theoretical findings are confirmed by experiments.



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