Experimental study on photon-beam peripheral doses, their components and some possibilities for their reduction

2010 ◽  
Vol 55 (14) ◽  
pp. 4011-4027 ◽  
Author(s):  
Ndimofor Chofor ◽  
Dietrich Harder ◽  
Antje Rühmann ◽  
Kay C Willborn ◽  
Tilo Wiezorek ◽  
...  
Keyword(s):  
Experimental Study ◽  
Photon Beam

RECENT RESULTS FROM LEPS

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1543-1547 ◽  
Author(s):  
T. NAKANO
Keyword(s):  
Experimental Study ◽  
Compton Scattering ◽  
Photon Beam ◽  
The Status

The photon beam at the LEPS facility is produced by backward-Compton scattering of laser photons from 8 GeV electrons at the SPring-8. The status and prospects of the experimental study on the Θ+ at LEPS are reported. Further evidences for pentaquark baryons and counter-evidences are also discussed.

scholarly journals On the experimental study of the converters of thermal energy into the parallel photon beam

2013 ◽  
Vol 2013 (3) ◽  
pp. 70-78
Author(s):  
Andrej Vladislavovich Gulevich ◽  
Oleg Filaretovich Kuharchuk ◽  
Nikolaj Ivanovich Loginov ◽  
Alexandr Sergeevich Mikheev
Keyword(s):  
Experimental Study ◽  
Thermal Energy ◽  
Photon Beam

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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