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Related papers: Bent crystal selection and assembling for the LAUE…

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Crystal lattice can trap and channel particle beams along major crystallographic directions. In a bent crystal, the channelled particles follow the bend. This makes a basis for an elegant technique of beam steering by means of bent…

Accelerator Physics · Physics 2014-11-18 V. M. Biryukov

The study of the celestial phenomena in the hard X-ray/soft gamma-ray band(20 keV--1 MeV) is very intriguing but also very difficult to be performed with the needed sensitivity. In this review I will discuss the astrophysical importance of…

Instrumentation and Methods for Astrophysics · Physics 2026-03-23 Filippo Frontera

The focusing of atoms interacting with both far-detuned and resonant standing wave fields in the thin lens regime is considered. The thin lens approximation is discussed quantitatively from a quantum perspective. Exact quantum expressions…

Atomic Physics · Physics 2009-10-31 J. L. Cohen , B. Dubetsky , P. R. Berman

Bent crystal was extracting 70-GeV protons with average intensity 4*10^11 (as measured in external beamline) per spill of 1.6 s duration, in parallel to the simultaneous work of two internal targets in the accelerator ring. An additional…

Recently it was proposed to apply a bent single crystal with decreasing curvature instead of uniform bending for improvement of extraction and collimation of a circulating beam in particle accelerators. In the given paper created crystal…

Bent crystal situated in a circulating beam can serve for efficient slow extraction or active collimation of the beams. This technique, well established at 10-1000 GeV, could be efficient also at the energies as low as 0.1-10 GeV according…

High Energy Physics - Experiment · Physics 2007-05-23 Valery M. Biryukov

MAX is a proposed Laue lens gamma-ray telescope taking advantage of Bragg diffraction in crystals to concentrate incident photons onto a distant detector. The Laue lens and the detector are carried by two separate satellites flying in…

Astrophysics · Physics 2008-11-26 G. Weidenspointner , C. B. Wunderer , N. Barriere , A. Zoglauer , P. von Ballmoos

We report on the measurements of the spectra of gamma radiation generated by 855 MeV electrons in bent silicon and germanium crystals at MAMI (MAinzer MIkrotron). The crystals were 15 {\mu}m thick along the beam direction to ensure high…

We discuss design and practical realization of novel gamma-ray Crystal-based Light Sources (CLS) that can be constructed through exposure of oriented crystals (linear, bent, periodically bent) to beams of ultrarelativistic charged…

Accelerator Physics · Physics 2020-10-28 Andrei V. Korol , Andrey V. Solov'yov

We present an investigation into beam steering and radiation emission by sub-GeV electrons traversing bent silicon crystals. Using 855, 600, and 300~MeV electron beams at the Mainz Microtron (MAMI), we explored orientational coherent…

The focusing of high energy charged particles by a bent crystal is considered. The limits and constraints of focusing imposed by dynamics of particles are pointed out. The crystalline geometry provided the maximum magnification and minimum…

Accelerator Physics · Physics 2010-01-05 Gennady V. Kovalev

We report the results of theoretical and numerical analysis of the crystalline undulators planned to be used in the experiments which are the part of the ongoing PECU project [1]. The goal of such an analysis was to define the parameters…

Accelerator Physics · Physics 2009-11-13 A. V. Korol , A. V. Solov'yov , Walter Greiner , . , .

We present the design of a diffraction limited, long working distance monochromatic objective lens for efficient light collection. Consisting of four spherical lenses, it has a numerical aperture of 0.29, an effective focal length of 36 mm…

Optics · Physics 2009-11-07 Wolfgang Alt

Steering of negatively charged particle beams below 1 GeV has demonstrated to be possible with thin bent silicon and germanium crystals. A newly designed mechanical holder was used for bending crystals, since it allows a remotely-controlled…

Instrumentation and Detectors · Physics 2020-06-14 D. De Salvador , S. Carturan , A. Mazzolari , E. Bagli , L. Bandiera , C. Durighello , G. Germogli , V. Guidi , P. Klag , W. Lauth , G. Maggioni , M. Romagnoni , A. Sytov

We outline the many physics opportunities offered by a multi-purpose fixed-target experiment using the LHC proton and Pb beams extracted by a bent crystal. In a proton run with the LHC 7-TeV beam, one can analyze pp, pd and pA collisions at…

High Energy Physics - Phenomenology · Physics 2015-06-04 S. J. Brodsky , F. Fleuret , C. Hadjidakis , J. P. Lansberg

We report on a future multi-purpose fixed-target experiment with the proton or lead ion LHC beams extracted by a bent crystal. The multi-TeV LHC beams allow for the most energetic fixed-target experiments ever performed. Such an experiment,…

Sub-angstrom spatial resolution of electron density coupled with sub-femtosecond temporal resolution is required to directly observe the dynamics of the electronic structure of a molecule after photoinitiation or some other ultrafast…

The Na59 collaboration aims to measure the linear polarization of its photon beam in the 20-170 GeV range, using an aligned thin crystal. The tracks of $e^-/e^+$ pairs created in two different crystal targets, germanium and diamond, are…

High Energy Physics - Experiment · Physics 2011-07-19 G. Unel

In this report we present the detail theory of the focusing in bent crystals using the statistical mechanics. The quantum mechanical effects for focusing and abberations are not considered. The beam structure in phase space are consedered…

Accelerator Physics · Physics 2007-05-23 G. V. Kovalev

Ideas of use the particle channeling in bent crystals for steer the beams have been checked up and advanced in many experiments. However, until now, this method of beam formation has limitations in application, since the channeling process…

Accelerator Physics · Physics 2020-03-30 A. G. Afonin , M. Yu. Chesnokov , Yu. A. Chesnokov , A. A. Yanovich