Appearance of conjugate images in a volume reflection hologram

1979 ◽  
Vol 9 (7) ◽  
pp. 897-899 ◽  
Author(s):  
Boris Ya Zel'dovich ◽  
V V Shkunov
Keyword(s):  
Volume Reflection ◽  
Reflection Hologram

Some imaging properties of volume reflection holography

1985 ◽  
Vol 63 (12) ◽  
pp. 1518-1524
Author(s):  
Yihe Huang
Keyword(s):  
Geometrical Model ◽  
Bragg Diffraction ◽  
Spherical Reflector ◽  
Volume Reflection ◽  
Reflection Hologram ◽  
Imaging Properties ◽  
Special Case

Some imaging properties of a volume reflection hologram are studied as a special case of Bragg diffraction. A spherical reflector is shown to serve as a geometrical model for imaging properties.

scholarly journals Channeling and radiation experiments at SLAC

2019 ◽  
Vol 34 (34) ◽  
pp. 1943006
Author(s):  
U. Wienands ◽  
S. Gessner ◽  
M. J. Hogan ◽  
T. Markiewicz ◽  
T. Smith ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Beam Energy ◽  
Narrow Band ◽  
Test Facility ◽  
Test Beam ◽  
High Beam ◽  
Silicon Crystals ◽  
Volume Reflection ◽  
Series Of Experiments ◽  
First Time

Since 2014, a SLAC-Aarhus-Ferrara-CalPoly collaboration augmented by members of ANL and MIT has performed electron and positron channeling experiments using bent silicon crystals at the SLAC End Station A Test Beam as well as the FACET accelerator test facility. These experiments have revealed a remarkable channeling efficiency of about 24% under our conditions. Volume reflection is even more efficient with almost the whole beam taking part in the reflection process. A positron experiment demonstrated quasi-channeling oscillations for the first time at high beam energy. In our most recent experiment we measured the spectrum of gamma radiation for crystal orientations covering channeling and volume reflection. This series of experiments supports the development of more advanced crystalline devices capable e.g. of producing narrow-band gamma rays with electron beams or studying the interaction of the electrons with the wakefields generated in the crystal at high beam intensity.

scholarly journals The `quasi-mosaic' effect in crystals and its applications in modern physics

2015 ◽  
Vol 48 (4) ◽  
pp. 977-989 ◽  
Author(s):  
Riccardo Camattari ◽  
Vincenzo Guidi ◽  
Valerio Bellucci ◽  
Andrea Mazzolari
Keyword(s):  
Hadron Collider ◽  
Proton Synchrotron ◽  
X Rays ◽  
Super Proton Synchrotron ◽  
Charged Particle Beams ◽  
Modern Physics ◽  
Volume Reflection ◽  
Comprehensive Survey ◽  
Γ Rays ◽  
Crystallographic Planes

`Quasi-mosaicity' is an effect of anisotropy in crystals that permits one to obtain a curvature of internal crystallographic planes that would be flat otherwise. The term `quasi-mosaicity' was introduced by O. Sumbaev in 1957. The concept of `quasi-mosaicity' was then retrieved about ten years ago and was applied to steering of charged-particle beams at the Super Proton Synchrotron at CERN. Beams were deviated by exploiting channeling and volume reflection phenomena in curved crystals that show the `quasi-mosaic' effect. More recently, a crystal of this kind was installed in the Large Hadron Collider at CERN for beam collimation by the UA9 collaboration. Since 2011, another important application involving the `quasi-mosaic' effect has been the focalization of hard X-rays and soft γ-rays. In particular, the possibility of obtaining both high diffraction efficiency and the focalization of a diffracted beam has been proved, which cannot be obtained using traditional diffracting crystals. A comprehensive survey of the physical properties of `quasi-mosaicity' is reported here. Finally, experimental demonstrations for adjustable values of the `quasi-mosaic' curvature are provided.

Reflection hologram for reconstructing deep images

1997 ◽  
Vol 22 (22) ◽  
pp. 1725 ◽  
Author(s):  
Yoshinao Taketomi ◽  
Toshihiro Kubota
Keyword(s):  
Reflection Hologram

Volume reflection observations in bent crystals with 13GeV/c particles

2011 ◽  
Vol 269 (6) ◽  
pp. 612-621 ◽  
Author(s):  
S. Hasan ◽  
D. Bolognini ◽  
P. Dalpiaz ◽  
G. Della Mea ◽  
D. De Salvador ◽  
...  
Keyword(s):  
Volume Reflection ◽  
Bent Crystals
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