Experimental study of hard photon radiation processes at HERA

1995 ◽  
Vol 66 (4) ◽  
pp. 529-542 ◽  
Author(s):  
◽  
T. Ahmed ◽  
S. Aid ◽  
V. Andreev ◽  
B. Andrieu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Photon Radiation ◽  
Hard Photon ◽  
Radiation Processes

Isolated hard photon radiation in multijet production at LEP

1992 ◽  
Vol 295 (1-2) ◽  
pp. 128-135 ◽  
Author(s):  
E.W.N. Glover ◽  
W.J. Stirling
Keyword(s):  
Photon Radiation ◽  
Hard Photon ◽  
Multijet Production

EXPERIMENTAL STUDY OF THE EFFECT OF AN ACHROMATIC HALF-WAVE PLATE ON THE POLARIZATION STATE VECTOR OF CORRELATED TWO-PHOTON RADIATION FROM METASTABLE ATOMIC DEUTERIUM

1995 ◽  
Vol 09 (02) ◽  
pp. 113-122
Author(s):  
Z. A. SHEIKH ◽  
A. J. DUNCAN ◽  
H. HAMDY ◽  
T. HAJI-HASSAN
Keyword(s):  
Experimental Study ◽  
Polarization State ◽  
Photon Radiation ◽  
Quantum Mechanical ◽  
Half Wave Plate ◽  
Emission Process ◽  
Wave Plate ◽  
Two Photon ◽  
Half Wave ◽  
First Time

We report the results of an experiment which, for the first time, demonstrates the action of an achromatic half-wave plate on the polarization state of the two-photon radiation emitted by atomic deuterium in the metastable 2S1/2 state. The results agree with the quantum mechanical predictions and confirm the hypothesis of Breit and Teller that the fine and hyperfine interaction plays no role in the emission process.

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.

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study
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