A method for implementing dynamic photon beam intensity modulation using independent jaws and a multileaf collimator

1995 ◽  
Vol 40 (5) ◽  
pp. 769-787 ◽  
Author(s):  
C X Yu ◽  
M J Symons ◽  
M N Du ◽  
A A Martinez ◽  
J W Wong
Keyword(s):  
Intensity Modulation ◽  
Beam Intensity ◽  
Photon Beam ◽  
Multileaf Collimator

DETERMINATION OF TRANSFER FUNCTIONS OF MCP-200 ALLOY USING 6 MV PHOTON BEAM FOR BEAM INTENSITY MODULATION

2004 ◽  
Vol 04 (03) ◽  
pp. 305-310 ◽  
Author(s):  
MUHAMMAD MAQBOOL
Keyword(s):  
Linear Accelerator ◽  
Transfer Functions ◽  
Theoretical Data ◽  
Intensity Modulation ◽  
Beam Intensity ◽  
Experimental Results ◽  
Photon Beam ◽  
Photographic Film ◽  
Optimum Dose

Transfer functions of MCP-200 alloy were determined for beam intensity modulation. 6 MV Photon beam, obtained from linear accelerator, is attenuated by blocks of MCP-200 alloy with different thicknesses placed at a distance of one meter from the source. The attenuated beam was allowed to fall on photographic film and optical densities were measured. Films were scanned and profiles were obtained for different thicknesses of the alloy and in the absence of any attenuator. Transfer functions were obtained theoretically as well as analytically by fitting the experimental results into theoretical data. The whole work was completed using optimum dose units and found to be 30 cGy.

234Dose escalation in lung cancer using a non-coplanar beam intensity modulation technique

1996 ◽  
Vol 40 ◽  
pp. S62 ◽  
Author(s):  
S. Derycke ◽  
B. Van Duyse ◽  
J.J. Schelfout ◽  
C. De Wagter ◽  
W. De Neve
Keyword(s):  
Lung Cancer ◽  
Intensity Modulation ◽  
Beam Intensity ◽  
Modulation Technique

Beam intensity modulation to reduce the field sizes for conformal irradiation of lung tumors: a dosimetric study

1999 ◽  
Vol 43 (4) ◽  
pp. 893-904 ◽  
Author(s):  
Marco J.P. Brugmans ◽  
Astrid van der Horst ◽  
Joos V. Lebesque ◽  
Ben J. Mijnheer
Keyword(s):  
Lung Tumors ◽  
Intensity Modulation ◽  
Beam Intensity ◽  
Dosimetric Study

Evaluation of Multileaf Collimator Design for a Photon Beam

1993 ◽  
Vol 18 (2) ◽  
pp. 85
Author(s):  
James M. Galvin ◽  
Alfred R. Smith ◽  
Ronald D. Moeller ◽  
Robert I. Goodman ◽  
William D. Powlis ◽  
...  
Keyword(s):  
Photon Beam ◽  
Multileaf Collimator
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