Elastic Scattering of Polarized Neutrons from 4He

1976 ◽  
pp. 534-535
Author(s):  
P. W. Lisowski ◽  
T. C. Rhea ◽  
R. L. Walter ◽  
T. B. Clegg
Keyword(s):  
Elastic Scattering ◽  
Polarized Neutrons

Elastic Scattering of 3.3-MeV Polarized Neutrons

1965 ◽  
Vol 137 (2B) ◽  
pp. B401-B404 ◽  
Author(s):  
D. W. Kent
Keyword(s):  
Elastic Scattering ◽  
Polarized Neutrons

Experimental and theoretical studies of the elastic scattering of polarized neutrons from 6Li

1975 ◽  
Vol 237 (1) ◽  
pp. 111-124 ◽  
Author(s):  
R.J. Holt ◽  
F.W.K. Firk ◽  
G.T. Hickey ◽  
R. Nath
Keyword(s):  
Elastic Scattering ◽  
Theoretical Studies ◽  
Polarized Neutrons ◽  
Experimental And Theoretical Studies

Elastic Scattering of 3.1-Mev Polarized Neutrons

1957 ◽  
Vol 108 (1) ◽  
pp. 116-119 ◽  
Author(s):  
B. M. McCormac ◽  
M. F. Steuer ◽  
C. D. Bond ◽  
F. L. Hereford
Keyword(s):  
Elastic Scattering ◽  
Polarized Neutrons

Elastic Scattering of Polarized Neutrons by3He at Low Energy

1982 ◽  
Vol 494 (6) ◽  
pp. 408-416 ◽  
Author(s):  
L. Drigo ◽  
G. Tornielli ◽  
G. Zannoni
Keyword(s):  
Elastic Scattering ◽  
Low Energy ◽  
Polarized Neutrons

Elastic scattering of polarized neutrons onO16,Co59, and Pb at 23 MeV

1985 ◽  
Vol 32 (1) ◽  
pp. 76-82 ◽  
Author(s):  
S. T. Lam ◽  
W. K. Dawson ◽  
S. A. Elbakr ◽  
H. W. Fielding ◽  
P. W. Green ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Polarized Neutrons

Elastic Scattering in Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 252-253
Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe
Keyword(s):  
Electron Microscopy ◽  
Elastic Scattering ◽  
Cross Section ◽  
Quantum Noise ◽  
Dark Field ◽  
Elastic Cross Section ◽  
Biological Molecules ◽  
Dark Field Microscopy ◽  
Field Systems ◽  
Effects Of Radiation

High resolution dark field microscopy is becoming an important tool for the investigation of unstained and specifically stained biological molecules. Of primary consideration to the microscopist is the interpretation of image Intensities and the effects of radiation damage to the specimen. Ignoring inelastic scattering, the image intensity is directly related to the collected elastic scattering cross section, σɳ, which is the product of the total elastic cross section, σ and the eficiency of the microscope system at imaging these electrons, η. The number of potentially bond damaging events resulting from the beam exposure required to reduce the effect of quantum noise in the image to a given level is proportional to 1/η. We wish to compare η in three dark field systems.

The Resolution and Contrast in Biological Sections Determined by Inelastic and Elastic Scattering

1973 ◽  
Vol 31 ◽  
pp. 224-225
Author(s):  
D. L. Misell
Keyword(s):  
Electron Microscopy ◽  
Adverse Effect ◽  
Elastic Scattering ◽  
Inelastic Scattering ◽  
Amorphous Carbon ◽  
Polymeric Materials ◽  
Chromatic Aberration ◽  
Image Resolution ◽  
Quantitative Estimates ◽  
Elastic Ratio

In the electron microscopy of biological sections the adverse effect of chromatic aberration on image resolution is well known. In this paper calculations are presented for the inelastic and elastic image intensities using a wave-optical formulation. Quantitative estimates of the deterioration in image resolution as a result of chromatic aberration are presented as an alternative to geometric calculations. The predominance of inelastic scattering in the unstained biological and polymeric materials is shown by the inelastic to elastic ratio, I/E, within an objective aperture of 0.005 rad for amorphous carbon of a thickness, t=50nm, typical of biological sections; E=200keV, I/E=16.

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