scholarly journals Aerosol elastic scatter signatures in the near- and mid-wave IR spectral regions

2009 ◽  
Author(s):  
Jonathan M. Richardson ◽  
John C. Aldridge ◽  
Adam B. Milstein ◽  
Joseph J. Lacirignola
Keyword(s):  
Elastic Scatter

Radiation Damage in Biological Materials

1973 ◽  
Vol 31 ◽  
pp. 482-483
Author(s):  
Donald F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Inelastic Scattering ◽  
Structural Damage ◽  
Carbonaceous Material ◽  
Theoretical Description ◽  
Elastic Scatter ◽  
Phase Plates ◽  
Scatter Intensity ◽  
Acceleration Voltage ◽  
Beam Damage

The importance of inelastic scattering in biological electron microscopy has been under-rated with respect to structural damage produced by the electron beam. Recently, semi-quantitative estimates of the beam damage associated with obtaining the micrograph indicate that the sturctural damage is severe. An improved theoretical description of inelastic scattering shows that the total inelastic scattering from carbonaceous material exceeds the elastic scatter by acout 3:1. This ratio is unaffected by acceleration voltage and no reduction in beam damage is expected from the use of high voltage (1Mev) for biological electron microscopy. The new calculations show also that over the wide angle scatter region (4Å to 1Å) the inelastic scatter is of approximately equal magnitude to the elastic scatter intensity. Hence, apertures, phase plates and collectors placed in this angular region intercept as much inelastic as elastic scatter.

The spatial resolution of x-ray microanalysis in thin foils

1991 ◽  
Vol 49 ◽  
pp. 472-473
Author(s):  
D. B. Williams ◽  
J. R. Michael ◽  
J. I. Goldstein ◽  
A. D. Romig
Keyword(s):  
Spatial Resolution ◽  
Thin Foil ◽  
Beam Specimen ◽  
Beam Diameter ◽  
Worst Case ◽  
X Ray ◽  
Thin Foils ◽  
Elastic Scatter ◽  
Electron Beam Diameter ◽  
Beam Broadening

The spatial resolution of x-ray microanalysis in a thin foil is determined by the size of the beam-specimen interaction volume. This volume is a combination of the incident electron beam diameter (d) and the beam broadening (b) due to elastic scatter within the specimen. Definitions of spatial resolution have already been proposed on this basis but all present a worst case value for the resolution based on the dimensions of the beam emerging from the exit face of the foil.

scholarly journals Elastic and Electromagnetic Proton Interactions at 3 TeV

1965 ◽  
Vol 18 (3) ◽  
pp. 277 ◽  
Author(s):  
CBA McCusker ◽  
LS Peak ◽  
RLS Woolcott
Keyword(s):  
Cross Section ◽  
Nuclear Emulsion ◽  
Average Energy ◽  
Elastic Cross Section ◽  
Proton Proton ◽  
Line Scan ◽  
Elastic Scatter

In the present paper we present the results of a line scan, in nuclear emulsion, of protons of average energy 3 TeV. No elastic scatters were detected in the scanned length of 594 cm. We calculate the probability of detecting an elastic scatter in emulsion, and hence that the proton-proton elastic cross section at 3 TeV is :$ 5 mbn.

Elastic scatter computed tomography

1985 ◽  
Vol 30 (2) ◽  
pp. 183-186 ◽  
Author(s):  
G Harding ◽  
J Kosanetzky
Keyword(s):  
Computed Tomography ◽  
Elastic Scatter
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