Modern
... different towards one chamber and describes a semi-circle inside that chamber due to the magnetic field present. The proton is then accelerated across the gap through a potential difference of V and describes another semi-circle of greater radius in the other chamber since its speed has increased. T ...
... different towards one chamber and describes a semi-circle inside that chamber due to the magnetic field present. The proton is then accelerated across the gap through a potential difference of V and describes another semi-circle of greater radius in the other chamber since its speed has increased. T ...
Figure 2. Turbo FT Laser Lineshape
... The same setup was then used to measure the CO2 bands of the atmosphere at 4.3 micrometers. These two bands actually consist of a number of sharp lines with approximately 1 cm-1 resolution and 1 cm-1 separation. The data was taken using the full +/- 17.6 degrees of scan angle, yielding the maximum r ...
... The same setup was then used to measure the CO2 bands of the atmosphere at 4.3 micrometers. These two bands actually consist of a number of sharp lines with approximately 1 cm-1 resolution and 1 cm-1 separation. The data was taken using the full +/- 17.6 degrees of scan angle, yielding the maximum r ...
Time-resolved atomic inner-shell spectroscopy
... The lifetime of core holes can be inferred from the energy spectral width of the photons or electrons emitted upon the decay of the excited atomic state. However, except for specific cases of isolated resonances without incoherent background, energy-domain measurements on their own are—in general—un ...
... The lifetime of core holes can be inferred from the energy spectral width of the photons or electrons emitted upon the decay of the excited atomic state. However, except for specific cases of isolated resonances without incoherent background, energy-domain measurements on their own are—in general—un ...
Exercises 2013 - Oxford School on Neutron Scattering
... where L is the total flight path between the source and detector. (b) A powder diffractometer, with total flight path L = 100 m and scattering angle 2θ = 170°, was used to obtain the powder diffraction pattern of perovskite, CaTiO3. Calculate the values of t for the three Bragg reflections with the ...
... where L is the total flight path between the source and detector. (b) A powder diffractometer, with total flight path L = 100 m and scattering angle 2θ = 170°, was used to obtain the powder diffraction pattern of perovskite, CaTiO3. Calculate the values of t for the three Bragg reflections with the ...
Review on X-ray Detectors Based on Scintillators and CMOS
... Abstract: This article describes the theoretical basis, design and implementation of X-ray microdetectors based on scintillating materials and CMOS technology. The working principle of such microdetectors consists in the absorption of X-rays by scintillators, which produce visible light. The visible ...
... Abstract: This article describes the theoretical basis, design and implementation of X-ray microdetectors based on scintillating materials and CMOS technology. The working principle of such microdetectors consists in the absorption of X-rays by scintillators, which produce visible light. The visible ...
MICROWAVE OPTICS – THE MEASUREMENTS OF THE
... (what corresponds to the frequencies of 109-1011Hz). These waves are used in radars and other communication systems, as well as in the analyses of very fine details of atomic and molecular structure, and are also generated by electronic devices. As everybody knows interference is one of the phenomen ...
... (what corresponds to the frequencies of 109-1011Hz). These waves are used in radars and other communication systems, as well as in the analyses of very fine details of atomic and molecular structure, and are also generated by electronic devices. As everybody knows interference is one of the phenomen ...
Study on modified point contact germanium detectors
... 1.1 Point contact germanium detectors PCGe detectors, are cylindrical detectors that have been produced from germanium. On one base of the cylinder they have a circular electrode (contact) embedded. The contact radius is usually kept small – close to point like – which explains the name. These detec ...
... 1.1 Point contact germanium detectors PCGe detectors, are cylindrical detectors that have been produced from germanium. On one base of the cylinder they have a circular electrode (contact) embedded. The contact radius is usually kept small – close to point like – which explains the name. These detec ...
Photoelectron spectroscopy of jet
... B. Magnetic bottle electron spectrometer The cluster packets are spatially and temporally focussed into the starting area of a TOF electron spectrometer where they are hit by the light pulse of a nitrogen laser (hv=3.68 eV, pulse length 10ns). In principle, this device can work without any magnetic ...
... B. Magnetic bottle electron spectrometer The cluster packets are spatially and temporally focussed into the starting area of a TOF electron spectrometer where they are hit by the light pulse of a nitrogen laser (hv=3.68 eV, pulse length 10ns). In principle, this device can work without any magnetic ...
Linda Höglund Growth and characterisation of InGaAs-based quantum dots-in-a-well infrared photodetectors
... an additional photocurrent peak observed only at temperatures below 60 K. By pumping resonantly with transitions associated with certain quantum dot energy levels, this photocurrent peak is identified as an intersubband transition emanating from the quantum dot excited state. Furthermore, the detect ...
... an additional photocurrent peak observed only at temperatures below 60 K. By pumping resonantly with transitions associated with certain quantum dot energy levels, this photocurrent peak is identified as an intersubband transition emanating from the quantum dot excited state. Furthermore, the detect ...
Terrestrial gamma ray flashes with energies up to 100 MeV
... [Dwyer and Smith, 2005; Carlson et al., 2007; Østgaard et al., 2008]. Note that Gjesteland et al. [2011] have recently found beaming angles within 30 –40 to be likely. We model the photon transport in the atmosphere up to 500 km, that is the typical altitude of low-orbit satellites detecting TGFs ...
... [Dwyer and Smith, 2005; Carlson et al., 2007; Østgaard et al., 2008]. Note that Gjesteland et al. [2011] have recently found beaming angles within 30 –40 to be likely. We model the photon transport in the atmosphere up to 500 km, that is the typical altitude of low-orbit satellites detecting TGFs ...
Lecture 18: Photodetectors
... where ∆E is the energy of the relevant transition within the active region of the device. Different kinds of transitions are possible 1. Interband - from the valence band to the conduction band 2. Interband impurity - from an impurity level in the band gap to either the valence or conduction band. T ...
... where ∆E is the energy of the relevant transition within the active region of the device. Different kinds of transitions are possible 1. Interband - from the valence band to the conduction band 2. Interband impurity - from an impurity level in the band gap to either the valence or conduction band. T ...
Absorption Measurements on PC1
... (filter holder channel), the accessory can be used also with acquisition through the right emission channel (monochromator channel). In the following, we will assume that the accessory will be utilized with the left emission channel. Please keep the left emission shutter closed. Turn the left emissi ...
... (filter holder channel), the accessory can be used also with acquisition through the right emission channel (monochromator channel). In the following, we will assume that the accessory will be utilized with the left emission channel. Please keep the left emission shutter closed. Turn the left emissi ...
Gamma spectroscopy
Gamma-ray spectroscopy is the quantitative study of the energy spectra of gamma-ray sources, in such as the nuclear industry, geochemical investigation, and astrophysics. Most radioactive sources produce gamma rays, which are of various energies and intensities. When these emissions are detected and analyzed with a spectroscopy system, a gamma-ray energy spectrum can be produced. A detailed analysis of this spectrum is typically used to determine the identity and quantity of gamma emitters present in a gamma source, and is a vital tool in radiometric assay. The gamma spectrum is characteristic of the gamma-emitting nuclides contained in the source, just as in optical spectroscopy, the optical spectrum is characteristic of the material contained in a sample.