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A new experimental technique for investigating characteristics of plasma generated with plasmotrons in electrophysical installations was proposed. The technique involves a simultaneous registration of both radiation spectra and images of…

等离子体物理 · 物理学 2007-05-23 V. Yu. Khomich , I. I. Kumkova , Yu. A. Zheleznov

Piezoelectric crystals are widely used for acoustic wave resonators of different functioning modes and types including BAW and SAW. It is well-known that only some special orientations of crystals will exhibit desirable properties such as…

材料科学 · 物理学 2017-12-27 J. Wang , L. M. Zhang , S. Y. Wang , L. T. Xie , B. Huang , T. F. Ma , J. K. Du , M. C. Chao , S. Shen , R. X. Wu , H. F. Zhang

The electromagnetic radiation generated by ultra-relativistic positrons channelling in a crystalline undulator is discussed. The crystalline undulator is a crystal whose planes are bent periodically with the amplitude much larger than the…

加速器物理 · 物理学 2009-11-10 A. V. Korol , A. V. Solov'yov , W. Greiner

Radiation damage is an unavoidable process when performing structural investigations of biological macromolecules with X-ray sources. In crystallography this process can be limited through damage distribution in a crystal, while for single…

A method of using vacuum calorimetry as a means of determining directly the energy deposited in an electrically exploded wire is presented. This energy determination is compared with that given by the time integral of the product of voltage…

综合物理 · 物理学 2008-11-26 Mario Rabinowitz

A majority of radiation effects studies are connected with creation of radiation-induced defects in the crystal bulk, which causes the observed degradation of material properties. The main objective of this chapter is to describe the…

材料科学 · 物理学 2014-06-18 Vladimir Dubinko

We present the results of studies for temperature dependences of electrogyration (EG) effect and natural optical activity in Pb5Ge3O11:Cr crystals. Extremely high magnitude of EG coefficient is found for these crystals. We also demonstrate…

光学 · 物理学 2007-08-31 D. Adamenko , I. Klymiv , V. M. Duda , R. Vlokh , O. Vlokh

This paper deals with an analytical modeling of heat transfers simulating a new radiation calorimeter operating in a temperature range from -50 {\deg}C to 150 {\deg}C. The aim of this modeling is the evaluation of the feasibility and…

仪器与探测器 · 物理学 2016-01-11 Elysée Obame Ndong , Olivier Gallot-Lavallée , Frédéric Aitken

The upgrade of the DA$\Phi$NE machine layout requires a modification of the size and position of the inner focusing quadrupoles of KLOE$^2$ thus asking for the realization of two new calorimeters covering the quadrupoles area. To improve…

仪器与探测器 · 物理学 2010-03-26 F. Happacher , M. Martini , S. Miscetti , I. Sarra

A component which suffers radiation damage usually also becomes radioactive, since the source of activation and radiation damage is the interaction of the material with particles from an accelerator or with reaction products. However, the…

加速器物理 · 物理学 2013-03-27 Daniela Kiselev

We present a dedicated experimental study of microscopic mechanisms controlling radiolysis and sputtering of astrophysical ices due to their bombardment by cosmic ray ions. Such ions are slowed down due to inelastic collisions with bound…

Two measurements of the energy resolution were performed at MAX-Lab in Lund, Sweden, with an array of 3$\times$3 PbWO4 crystals using a tagged photon beam with energies between 19 and 56 MeV. The crystals were cooled down to -15 and -25…

核实验 · 物理学 2008-05-08 Sophie Grape

Future cryogenic experiments searching for rare events require reliable, efficient and robust techniques for the detection of photons at temperatures well below that to which low-temperature photomultipliers (PMT) were characterised.…

核实验 · 物理学 2010-05-24 H. Kraus , V. B. Mikhailik

The processes of radiation defects formation and evolution have been simulated in cubic dielectric crystals by the computational method of cellular automata. If suppose that the defects concentration as a parameter, which characterizes a…

元胞自动机与格子气 · 物理学 2011-05-03 K. Baktybekov , Ye. Vertyagina

Operando calorimetry has previously been utilized to study degradation, side reactions, and other electrochemical effects in electrochemical cells such as batteries at or near room temperature. Calorimetric data can provide important…

Coronal Mass Ejections (CMEs) often show different features in different band-passes. By combining data in white-light (WL) and ultraviolet (UV) bands, we have applied different techniques to derive plasma temperatures, electron density,…

太阳与恒星天体物理 · 物理学 2020-08-19 Beili Ying , Alessandro Bemporad , Li Feng , Lei Lu , Weiqun Gan , Hui Li

We discuss radiation generated by positrons channeling in a crystalline undulator. The undulator is produced by periodically bending a single crystal with an amplitude much larger than the interplanar spacing. Different approaches for…

加速器物理 · 物理学 2017-08-23 A. V. Korol , W. Krause , A. V. Solov'yov , W. Greiner

We report on the experimental observation of the beaming effect in photonic crystals enhanced via surface modes. We experimentally map the spatial field distribution of energy emitted from a subwavelength photonic crystal waveguide into…

光学 · 物理学 2009-11-13 Steven K. Morrison , Yuri S. Kivshar

High precision timing, high rate calorimeters, and radiation resistance are becoming an important issue in particle physics especially in Energy and Intensity Frontiers. We discuss doped Zinc Oxide (ZnO:Ga or GZO; ZnO:X where X is Al, Cu or…

仪器与探测器 · 物理学 2022-03-21 David R Winn , Y. Onel , B. Bilki

Scintillation properties of $({\rm Zn}_{0.9} {\rm Pb}_{0.1})({\rm W}_{0.9} {\rm Mo}_{0.1}){\rm O}_4$ and $({\rm Zn}_{0.9} {\rm Cd}_{0.1})({\rm W}_{0.9} {\rm Mo}_{0.1}){\rm O}_4$ mixed crystals with doping of ${\rm Eu, Sm, Pr, Ce, Sc, Yt}$…

仪器与探测器 · 物理学 2020-08-26 E. N. ~Galashov , D. V. ~Matvienko , V. A. ~Moskovskyh , B. I. ~Sikach , B. A. ~Shwartz