An empirical treatment of nonrelattvistic proton beam spreading

1988 ◽  
Vol 30 (2) ◽  
pp. 182-184 ◽  
Author(s):  
A.J. Antolak
Keyword(s):  
Proton Beam ◽  
Empirical Treatment ◽  
Beam Spreading

scholarly journals Design of 100-MeV proton beam spreading scheme with double-ring double scattering method

2019 ◽  
Vol 68 (5) ◽  
pp. 054104
Author(s):  
Jin-Hua Han ◽  
Gang Guo ◽  
Jian-Cheng Liu ◽  
Li Sui ◽  
Fu-Quan Kong ◽  
...  
Keyword(s):  
Proton Beam ◽  
Scattering Method ◽  
Double Scattering ◽  
Beam Spreading ◽  
Double Ring

TU-FF-A2-04: Preliminary Radiological Characterization of An Active Proton Beam Spreading System for Therapeutic Use

2006 ◽  
Vol 33 (6Part18) ◽  
pp. 2220-2220
Author(s):  
J Farr ◽  
A Mascia ◽  
D Nichiporov ◽  
W Hsi ◽  
C Allgower ◽  
...  
Keyword(s):  
Proton Beam ◽  
Therapeutic Use ◽  
Beam Spreading ◽  
Radiological Characterization

Comparison of Commissioning Results for Passive and Scanning Proton Beam Spreading Systems

2008 ◽  
Vol 72 (1) ◽  
pp. S661-S662
Author(s):  
M.R. Wolanski ◽  
C. Allgower ◽  
L. Coutinho ◽  
J.B. Farr ◽  
M. Fitzek ◽  
...  
Keyword(s):  
Proton Beam ◽  
Beam Spreading

Spatial resolution of X-ray microanalysis in thin foils

1978 ◽  
Vol 36 (1) ◽  
pp. 544-545
Author(s):  
R. Hutchings ◽  
I.P. Jones ◽  
M.H. Loretto ◽  
R.E. Smallman
Keyword(s):  
Spatial Resolution ◽  
Electron Probe ◽  
Beam Divergence ◽  
Inelastic Interaction ◽  
Specimen Thickness ◽  
High Current ◽  
Beam Spreading ◽  
X Ray ◽  
Thin Foils ◽  
Complex Calculation

There is increasing interest in X-ray microanalysis of thin specimens and the present paper attempts to define some of the factors which govern the spatial resolution of this type of microanalysis. One of these factors is the spreading of the electron probe as it is transmitted through the specimen. There will always be some beam-spreading with small electron probes, because of the inevitable beam divergence associated with small, high current probes; a lower limit to the spatial resolution is thus 2αst where 2αs is the beam divergence and t the specimen thickness.In addition there will of course be beam spreading caused by elastic and inelastic interaction between the electron beam and the specimen. The angle through which electrons are scattered by the various scattering processes can vary from zero to 180° and it is clearly a very complex calculation to determine the effective size of the beam as it propagates through the specimen.

Control of proton beam divergence in intense-laser foil-plasma interaction

2006 ◽  
Vol 133 ◽  
pp. 549-551 ◽  
Author(s):  
S. Kawata ◽  
R. Sonobe ◽  
S. Miyazaki ◽  
K. Sakai ◽  
T. Kikuchi
Keyword(s):  
Proton Beam ◽  
Beam Divergence ◽  
Intense Laser ◽  
Plasma Interaction
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