scholarly journals Design and performance of A 3He-free coincidence counter based on parallel plate boron-lined proportional technology

2015 ◽  
Vol 788 ◽  
pp. 188-193 ◽  
Author(s):  
D. Henzlova ◽  
H.O. Menlove ◽  
J.B. Marlow
Keyword(s):  
Parallel Plate ◽  
Coincidence Counter ◽  
And Performance

Wave-tank experiments on an immersed parallel-plate duct

1979 ◽  
Vol 90 (2) ◽  
pp. 327-336 ◽  
Author(s):  
G. F. Knott ◽  
J. O. Flower
Keyword(s):  
Wave Energy ◽  
Parallel Plate ◽  
Pressure Coefficient ◽  
Wave Interaction ◽  
Theoretical Work ◽  
Wave Energy Converters ◽  
Recent Theoretical Work ◽  
Series Of Experiments ◽  
And Performance ◽  
Incident Waves

A series of experiments is described in which a fully submerged parallel-plate enclosure is subjected to regular incident waves. The resulting wave-interaction effects are defined in terms of a reflexion coefficient derived from wave-height measurements and a pressure coefficient derived from measurements of pressure in the depths of the enclosure. The latter parameter describes the pressure induced in the enclosure by the passage of regular waves above it and is of particular interest, at present, in having a bearing on the operation and performance of a sub-sea wave-energy converter currently under development. The outcome of these experiments is the partial verification of some recent theoretical work, including the demonstration of a pressure intensification at certain wave frequencies.These experiments form part of a wider study concerned generally with the performance of immersed, pressure-driven, wave-energy converters.

Construction and performance test of prototype parallel plate avalanche counters at RAON

2017 ◽  
Vol 70 (7) ◽  
pp. 682-686 ◽  
Author(s):  
Charles Akers ◽  
Kwang Bok Lee ◽  
Young Jin Kim ◽  
Eun Hee Kim ◽  
Young Kwan Kwon ◽  
...  
Keyword(s):  
Parallel Plate ◽  
Performance Test ◽  
And Performance

The Structure of Radiation Cross-Linked Poly (ethylene oxide) Gels

1971 ◽  
Vol 29 ◽  
pp. 76-77
Author(s):  
C. E. Cluthe ◽  
G. G. Cocks
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Parallel Plate ◽  
Average Molecular Weight ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Nitrogen Gas ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Initial Viscosity

Aqueous solutions of a 1 weight-per cent poly (ethylene oxide) (PEO) were degassed under vacuum, transferred to a parallel plate viscometer under a nitrogen gas blanket, and exposed to Co60 gamma radiation. The Co60 source was rated at 4000 curies, and the dose ratewas 3.8x105 rads/hr. The poly (ethylene oxide) employed in the irradiations had an initial viscosity average molecular weight of 2.1 x 106.The solutions were gelled by a free radical reaction with dosages ranging from 5x104 rads to 4.8x106 rads.

Transmission Scanning Electron Microscopy and Energy Analysis with the Siemens ELMISKOP 101

1972 ◽  
Vol 30 ◽  
pp. 450-451
Author(s):  
H. M. Thieringer
Keyword(s):  
Objective Lens ◽  
Transmission Microscopy ◽  
Image Recording ◽  
Mode Of Operation ◽  
Scanning Transmission ◽  
Electron Microscopes ◽  
And Performance ◽  
Convergent Beam ◽  
Ray Path ◽  
Beam Diffraction

It has repeatedly been show that with conventional electron microscopes very fine electron probes can be produced, therefore allowing various micro-techniques such as micro recording, X-ray microanalysis and convergent beam diffraction. In this paper the function and performance of an SIEMENS ELMISKOP 101 used as a scanning transmission microscope (STEM) is described. This mode of operation has some advantages over the conventional transmission microscopy (CTEM) especially for the observation of thick specimen, in spite of somewhat longer image recording times.Fig.1 shows schematically the ray path and the additional electronics of an ELMISKOP 101 working as a STEM. With a point-cathode, and using condensor I and the objective lens as a demagnifying system, an electron probe with a half-width ob about 25 Å and a typical current of 5.10-11 amp at 100 kV can be obtained in the back focal plane of the objective lens.

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