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Absorbed Particle

The Experts below are selected from a list of 24 Experts worldwide ranked by ideXlab platform

Christian Lotto – 1st expert on this subject based on the ideXlab platform

  • Energy-Sensitive Single-Photon X-ray and Particle Imaging
    Springer Series in Optical Sciences, 2020
    Co-Authors: Christian Lotto

    Abstract:

    Energy-sensitive detectors perform asynchronous arrival detection of single X-Ray photons and Particles. Their ability of measuring the detected Particles’ energy improves the performance of the Particle counting applications and enables spectroscopic applications. In such detectors, either a semiconductor layer for direct conversion or a combination of a scintillator and a semiconductor sensing device for visible photons is used for generation of an electrical charge pulse per Absorbed Particle. This charge amount, which represents the Particle energy, is detected by an asynchronous charge pulse detecting circuit. The noise of such circuits defines the lowest discrimination threshold of counting systems and the energy resolution of spectroscopic applications. Therefore, low noise, low power consumption, and low area are requirements for charge pulse detecting circuits used in segmented energy sensitive Particle detectors with a high number of pixels. Choice of a sensing device, definition of the charge pulse detecting circuit’s topology, and analysis of interdependences amongst the above performance parameters are covered and a context with employed readout schemes, processing circuits, and target applications is established in this chapter. Energy-sensitive detectors perform asynchronous arrival detection of single X-Ray photons and Particles. Their ability of measuring the detected Particles’ energy improves the performance of the Particle counting applications and enables spectroscopic applications. In such detectors, either a semiconductor layer for direct conversion or a combination of a scintillator and a semiconductor sensing device for visible photons is used for generation of an electrical charge pulse per Absorbed Particle. This charge amount, which represents the Particle energy, is detected by an asynchronous charge pulse detecting circuit. The noise of such circuits defines the lowest discrimination threshold of counting systems and the energy resolution of spectroscopic applications. Therefore, low noise, low power consumption, and low area are requirements for charge pulse detecting circuits used in segmented energy sensitive Particle detectors with a high number of pixels. Choice of a sensing device, definition of the charge pulse detecting circuit’s topology, and analysis of interdependences amongst the above performance parameters are covered and a context with employed readout schemes, processing circuits and target applications is established in this chapter.

Feng Ya – 2nd expert on this subject based on the ideXlab platform

  • Theoretical Study of Character of SARS Virus Particle in Air Dynamics
    Journal of Shangqiu Vocational and Technical College, 2020
    Co-Authors: Feng Ya

    Abstract:

    SARS virus is a kind of superfine Particle essentially. The character of temperature and time and Particle diameter and humidity and adsorption and so on may be obtained from air dynamics when this fine Particle is as Absorbed Particle. They can be calculated and analyzed by existing formula, and lay on quantization basis for calculation of SARS virus Particle. When study of virology mechanics of SARS virus is not very clear , we can offer corresponding method freely with air dynamics character and have direction for our corresponding experiment study.

Matthias Buehler – 3rd expert on this subject based on the ideXlab platform

  • Detection of single Particles and quanta with a cryogenic calorimeter of high mass
    EUV X-Ray and Gamma-Ray Instrumentation for Astronomy III, 1992
    Co-Authors: Edgar Umlauf, Matthias Buehler

    Abstract:

    ABSTRACT A status report is given on the development of a cryogenic Particle detector. The elementary excitations are transitions between the two states of a Kramers doublet with a Zeeman splitting of the order of iO eV. Results are given for acompound detector with a mass of 120 grams. The baseline energy resolution is 8 eV rms I s/Hz, and it is shown that this resolution could be achieved with a very high absorber mass too. The signal rise time depends strongly on temperature, withthe shortest signals found at the lowest temperature (35 ms at 30 mK). In addition a much shorter signal with 1 ma rise timecan be superposed. 1. INTRODUCTIONDifferent kinds of cryogenic detectors have been developed in recent years by various groups1 , in order to achieve higher energy-resolution compared with conventional detectors. We want to consider only the bolometers where the energyof an Absorbed Particle becomes thermalized and the resulting increase of temperature, depending on the heat capacity of the