Conferences related to Ionization Chambers

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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 Power Modulator and High Voltage Conference (IPMHVC)

This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.


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


2019 6th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA)

Nuclear instrumentation and measurement methods in nuclear environments are key aspectsthat contribute to the quality of scientific programmes in the fields of physics, energy, the fuelcycle and waste management. Furthermore, measurements relying on nuclear physics now playan 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 networkof scientific researchers and experts from industry, research institutes, academic dealing withnuclear instrumentation and applications).ANIMMA 2017 is the fifth of a series of conferences devoted to endorsing andpromoting scientific and technical activities based on nuclear instrumentation andmeasurements.The main objective of ANIMMA conference is to unite the various scientific communities not onlyinvolved in nuclear instrumentation and measurements, but also in methodology activities (R&D, Innovation and

  • 2017 5th International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA)

    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

  • 2015 4th International Conference on Advancements in Nuclear InstrumentationMeasurement Methods and their Applications (ANIMMA)

    ANIMMA 2015 is the fourth 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 nuclear medicine and radiation. The conference is all about getting scientists, engineers and the industry to meet, exchange cultures and identify new scientific and technical prospects to help overcome both current and future unresolved issues. The ANIMMA conference provides scientists and engineers with a veritable opportunity to compare their latest research and development in different areas: physics, nuclear energy, nuclear fuel cycle, safety, security, future energies (GEN III+, GENIV, ITER, ...).

  • 2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA)

    ANIMMA conference sets out to unite, consolidate and organize an international network of scientific, researcher and experts from industry, research institutes, academic dealing with nuclear instrumentation and measurement methodology activities (R&D, Innovation and applications).ANIMMA 2013 is the third 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 nuclear medicine and radiation. The conference is all about getting scientists, engineers and the industry to meet, exchange cultures and identify new scientific and technical prospects to help overcome both current and future unresolved issues.

  • 2011 2nd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA)

    The aim of the conference is to bring together scientific, academic and industrial communities interested in, or actively involved in research and developments related to nuclear instrumentation and measurement methods.

  • 2009 1st International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA)

    The program is focused onnuclear instrumantation and measurement methods and deals with all measurement stage : modeling,radiation detection, in plie measurements, electronics, signal acquisition and analysis and training/education activities


2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)

IEEE International Conference on Dielectric Liquids (ICDL) is a research oriented conference focused on the exchange and discussion of ideas, results and practical experiences of properties, dielectric phenomena and applications of insulating liquids. It addresses physicists, chemists, material scientists and electrical engineers who are engaged in the research and practical applications of such materials and apparatus. ICDL provides a forum for presenting innovative ideas and applications such as the use of natural and synthetic esters in power transformers, SF6 alternative gasses having much less greenhouse impact and electrodynamics in emerging applications.This Conference is the 20th in a series held every two years, and is fully sponsored by the IEEE Dielectrics and Electrical Insulation Society (DEIS).


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Periodicals related to Ionization Chambers

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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


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Industry Applications, IEEE Transactions on

The development and application of electric systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; the encouragement of energy conservation; the creation of voluntary engineering standards and recommended practices.


Instrumentation and Measurement, IEEE Transactions on

Measurements and instrumentation utilizing electrical and electronic techniques.


Magnetics, IEEE Transactions on

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.


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Xplore Articles related to Ionization Chambers

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American National Standard Calibration and Usage of "Dose Calibrator" Ionization Chambers for the Assay of Radionuclides

ANSI Std N42.13-1986, 1986

A technique for the quantification of the activity of identified radionuclides, using any of a variety of ionization chambers currently available for this purpose, is presented. Application of the standard is limited to instruments that incorporate well-type ionization chambers as detectors. The method provides measurements that are accurate to within plus or minus 10% and reproducible to within plus or ...


American National Standard Calibration and Usage of "Dose Calibrator" Ionization Chambers for the Assay of Radionuclides

ANSI N42.13-2004 (Reaffirmation of ANSI N42.13-1986), 2004

The wide range of calibrator-type instruments currently being used primarily for radionuclide assay in nuclear medicine indicates the need for a standard for uniformity in measurement and test techniques. Such devices are composite systems consisting of an ionization chamber integrally coupled to appropriate electronic circuitry that converts the ionization current to a readout in units of activity. The principles of ...


Change in the number of ion pairs produced in free-air ionization chambers due to the applied electric field

1999 IEEE Nuclear Science Symposium. Conference Record. 1999 Nuclear Science Symposium and Medical Imaging Conference (Cat. No.99CH37019), 1999

Secondary electrons emitted by X-rays in free-air ionization chambers gain or lose energy depending on the electric fields applied to collect ion signal charges. The change in ionization due to the electric field was calculated by the EGS4 program for parallel-plate and cylindrical free-air ionization chambers. For cylindrical free-air ionization chambers, the electron range was assumed not to depend on ...


Saturation characteristics of ionization chambers for high-intensity continuous and pulsed x-ray beams

2007 IEEE Nuclear Science Symposium Conference Record, 2007

The relation between current and applied voltage of parallel-plate and free- air ionization chambers was investigated for high-intensity X rays from synchrotron radiation. To make pulsed X rays, synchrotron radiation was intercepted at 533 Hz with a rotating disk having slits. For continuous X rays, m decreased with applied voltage at parallel-plate ionization chamber. For pulsed X rays, VI was ...


Measurements of Ballistic Deficits for Parallel Plate Ionization Chambers

2006 IEEE Nuclear Science Symposium Conference Record, 2006

Ionization chambers are the important gas-filled ionization detectors for heavy ion detection and spectroscopy. As the effect of ballistic deficit is the imprecision in the measurement of the pulse-height, the measurements of ballistic deficits for the pulses from ionization chambers of different types are expected to play very important role in the heavy ion spectroscopy. We have carried out measurements ...


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  • American National Standard Calibration and Usage of "Dose Calibrator" Ionization Chambers for the Assay of Radionuclides

    A technique for the quantification of the activity of identified radionuclides, using any of a variety of ionization chambers currently available for this purpose, is presented. Application of the standard is limited to instruments that incorporate well-type ionization chambers as detectors. The method provides measurements that are accurate to within plus or minus 10% and reproducible to within plus or minus 5%. The standard is also intended to ensure continuing performance of the apparatus within these specifications.

  • American National Standard Calibration and Usage of "Dose Calibrator" Ionization Chambers for the Assay of Radionuclides

    The wide range of calibrator-type instruments currently being used primarily for radionuclide assay in nuclear medicine indicates the need for a standard for uniformity in measurement and test techniques. Such devices are composite systems consisting of an ionization chamber integrally coupled to appropriate electronic circuitry that converts the ionization current to a readout in units of activity. The principles of operation of the ionization chamber are well summarized in the NCRP Report No 58 [1] 1 and will not be repeated here. Wide activity range and stability are useful characteristics of ionization chambers in this application. The advantages of this type of system for radionuclide assay include ease of use and interpretation.

  • Change in the number of ion pairs produced in free-air ionization chambers due to the applied electric field

    Secondary electrons emitted by X-rays in free-air ionization chambers gain or lose energy depending on the electric fields applied to collect ion signal charges. The change in ionization due to the electric field was calculated by the EGS4 program for parallel-plate and cylindrical free-air ionization chambers. For cylindrical free-air ionization chambers, the electron range was assumed not to depend on electric field strength. Ionization enhancement and reduction peaked for X-rays at about 40 keV because the average energy of emitted electrons decreases transiently with the increase in X-ray energy as the number of Compton recoil electrons increases in relation to that of photoelectrons. Electrons emitted by photons at an energy within a certain range gain or lose over 0.3% of their energy. The net effect of the electric field on the signal current for typical parallel-plate and cylindrical free- air ionization chambers is usually small because energy gain and loss mutually compensate for each other.

  • Saturation characteristics of ionization chambers for high-intensity continuous and pulsed x-ray beams

    The relation between current and applied voltage of parallel-plate and free- air ionization chambers was investigated for high-intensity X rays from synchrotron radiation. To make pulsed X rays, synchrotron radiation was intercepted at 533 Hz with a rotating disk having slits. For continuous X rays, m decreased with applied voltage at parallel-plate ionization chamber. For pulsed X rays, VI was linear to 1/V at parallel- plate and free-air ionization chambers. At high-intensity, the applied voltage increases the ion velocity, and the transit time became almost comparable to the pulse width. At this condition, the X rays became "continuous" and 1/I approached linearity to 1/V<sup>2</sup> rather than 1/V.

  • Measurements of Ballistic Deficits for Parallel Plate Ionization Chambers

    Ionization chambers are the important gas-filled ionization detectors for heavy ion detection and spectroscopy. As the effect of ballistic deficit is the imprecision in the measurement of the pulse-height, the measurements of ballistic deficits for the pulses from ionization chambers of different types are expected to play very important role in the heavy ion spectroscopy. We have carried out measurements on the ballistic deficits for the pulses from the two-electrode parallel plate ionization chamber as well as for the pulses from the gridded parallel plate ionization chamber by processing these pulses through a simple CR-RC shaping network with pole-zero cancellation. The height of the shaped pulse versus shaping time curves for these ionization chambers show saturation at higher shaping times. Taking saturated pulse-height as the maximum possible pulse-height, the ballistic deficits have been estimated for different shaping times and are compared with the calculations based on the numerical integration method. The experimental results are in good agreement with the theoretical predictions, showing clearly that the ballistic deficits can be made negligibly small by choosing the shaping time about four-times the maximum electron collection time.

  • Ionization Chambers to Measure Neutron and Gamma-Ray Kerma in a Research Reactor

    Ionization chambers were designed and constructed to measure the kerma rates (heating) in various materials within several centimeters of a TRIGA reactor core operating at 1 MW. Wall thickness, collection gap and fill gas pressure were chosen to satisfy Bragg-Gray criteria, so that measured ionization current across the collection gap was proportional to the kerma in the wall material. Chamber wall materials comprised of low mass number elements, including hydrogen-rich C552 air-equivalent plastic and beryllium, were selected to measure the kerma due to fast neutron elastic scattering. By operating these neutron sensitive chambers coincidentally with relatively neutron insensitive chambers composed of aluminum and Zircaloy-4, we were able to measure the relative heating due to neutrons and gamma rays in a material. Chamber collection volumes were initially determined using NIST-traceable kerma rates and a cobalt-60 source. All chambers were sealed with argon gas to provide thermal and compositional stability. Chamber collection gas mass, stability and saturation curves were determined using the60Co source. Chambers were operated for approximately 30 minutes and the integrity of gas seals was subsequently verified by repeating the measurement with the60Co source.

  • Improving the energy resolution of high-pressure Xe cylindrical ionization chambers

    Results are presented on the development of high-pressure (>50 atm) Xe cylindrical ionization chambers for hard X-ray and low energy gamma-ray astronomy. Two methods to improve the energy resolution of these devices have been tested. One uses a shielding mesh and the other employs no mesh but substitutes a rise-time correction. Both techniques can give similar resolutions, with 2.2% FWHM being measured at 662 keV and 2.4% at 511 keV.

  • Evaluation of ionization chambers for quality assurance

    The authors investigated many factors which affect the performance of ionization chambers. They carried out performance tests. Their aim is to assist users in maintaining their chambers and in making accurate dosimetric measurements. The following devices were checked: a 0.9 mCi Strontium-90 check device; a Clinac 600C (Varian); rigid stem and cylindrical chambers; an IO-4 electrometer.

  • An attempt at using TMA to improve the energy resolution of high-pressure Xe ionization chambers

    Preliminary results of using TMA (trimethylamine) to improve the energy resolution of a high-pressure (>50 atm) Xe ionization chamber are presented. This work borrowed a technique which has been successfully applied to dope liquid Ar and Xe. However, problems related to the contamination of TMA were found to be more difficult to overcome. The maximum density of Xe at which the influence of impurities could be neglected was only 0.3 g/cm/sup 3/ at a concentration of TMA of about 80 ppm. As in the case of liquid Xe, doping increases the collected charge and considerably improves energy resolution, but only at low fields.

  • Analysis of electronic conduction pulses produced in liquid ionization chambers by high-energy radiation

    The electron pulse shape produced by the passage of an ionizing particle through a liquid-filled ionization chamber is analyzed theoretically. In addition, the authors discuss the effect of an electric field on the observed pulse height Q/sub e/(t/sub d/), where t/sub d/ is the electron drift time. The analysis of the pulse shape yields information on the type of particle and on the purity of the liquid. For reliable operation, a condition of the liquid characterized by tau >>t/sub d/ (where tau is the electron lifetime) has to be achieved. A plot of the pulse peak height as a function of the electric field strength for cosmic ray particles can be used to deduce the electron lifetime.<<ETX>>




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