scholarly journals Determination of biological transport of oxygen-15 and carbon-11 generated in rats. [32 MeV proton beams]

1976 ◽  
Author(s):  
B. Archambeau ◽  
G.W. Bennett ◽  
J.O. Archambeau
Keyword(s):  
Biological Transport ◽  
Proton Beams

TH-C-BRB-02: Determination of Average LET of Therapeutic Proton Beams Using A12O3:C Optically Stimulated Luminescence (OSL) Detectors

2010 ◽  
Vol 37 (6Part28) ◽  
pp. 3453-3453
Author(s):  
G Sawakuchi ◽  
N Sahoo ◽  
P Gasparian ◽  
M Rodriguez ◽  
L Archambault ◽  
...  
Keyword(s):  
Optically Stimulated Luminescence ◽  
Proton Beams

Determination of the airw-value in proton beams using ionization chambers with gas flow capability

2000 ◽  
Vol 27 (10) ◽  
pp. 2363-2368 ◽  
Author(s):  
M. F. Moyers ◽  
S. M. Vatnitsky ◽  
D. W. Miller ◽  
J. M. Slater
Keyword(s):  
Gas Flow ◽  
Ionization Chambers ◽  
Proton Beams

A dosimetric analysis of proton beam therapy using different snouts

2018 ◽  
Vol 18 (02) ◽  
pp. 180-185
Author(s):  
Khalid Iqbal ◽  
Qurat-ul-ain Shamsi ◽  
Kent A Gifford ◽  
Sania Anum ◽  
Saeed Ahmad Buzdar
Keyword(s):  
Proton Beam ◽  
Modulation Depth ◽  
Proton Beam Therapy ◽  
Proton Beams ◽  
Mean Values ◽  
Water Phantom ◽  
Beam Output ◽  
Dosimetric Analysis ◽  
The Given

AbstractPurposeThis exploration is intended to analyse the dosimetric characteristics of proton beams of multiple energies using different snout sizes.Materials and methodsA synchrotron was used for the extraction of eight proton beam energies (100–250 MeV). Dosimetric measurements were taken in a water phantom that was irradiated with a proton beam emanating from the gantry system at angles 0, 90, 180 and 270 degree using a large and a medium snout. The range of beam energies in the phantom, their corresponding centre modulation depth (CMD) and the width of spread out Bragg peak (SOBP) were measured by Markus chamber. Double scattering technique was employed for the creation of SOBPs.ResultsThe range of proton beams varied from 4·3 cm for 100 MeV beam to 28·5 cm for 250 MeV beam with the medium snout and from 4·3 cm for 100 MeV to 25 cm for 250 MeV beam with large snout in the water phantom. SOBP width showed a variation from 4 to 10 cm with medium and large snout. While determining the output with medium snout, the discrepancy of 1·1% was observed between the maximum and minimum mean values of output for all the given set of energies and angles. There occurred a difference of 0·9% between the maximum and minimum mean values of output with the large snout. Beam output at SOBP centre was 12% higher with large snout as compared to that with medium snout for all the given beam energies. Flatness and symmetry were found within ±2·5% tolerance limits with medium and large snouts.ConclusionFlatness and symmetry were found within explicit limits with both medium and large snouts. Large snout produced higher beam output than that of medium snout at the centre of SOBP. This exploration can be extended to the determination of beam output, flatness and symmetry with a small snout.

Precise determination of the Bragg peak position of proton beams in liquid water

2011 ◽  
Vol 46 (9) ◽  
pp. 988-992 ◽  
Author(s):  
Abdelhak Marouane ◽  
Said Ouaskit ◽  
Jamal Inchaouh
Keyword(s):  
Liquid Water ◽  
Bragg Peak ◽  
Peak Position ◽  
Precise Determination ◽  
Proton Beams

Optical range determination of clinical proton beams in water. A comparison with standard measurement methods

2020 ◽  
Vol 73 ◽  
pp. 197-203
Author(s):  
Jan Michael Burg ◽  
Felix Horst ◽  
Jörg Wulff ◽  
Beate Timmermann ◽  
Hilke Vorwerk ◽  
...  
Keyword(s):  
Measurement Methods ◽  
Optical Range ◽  
Proton Beams ◽  
Standard Measurement ◽  
Range Determination

SU-GG-T-177: Determination of SOBP PDD for Therapeutic Proton Beams

2008 ◽  
Vol 35 (6Part11) ◽  
pp. 2766-2766
Author(s):  
TC Zhu ◽  
R Karunamuni ◽  
R Slopsema
Keyword(s):  
Proton Beams
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