Journal: Journal of Applied Clinical Medical Physics

Article Title: Verification of IMRT dose calculations using AAA and PBC algorithms in dose buildup regions

doi: 10.1120/jacmp.v11i4.3351

Figure Lengend Snippet: Comparison of calculated dose profiles (AAA and PBC) at depth of dose maximum ( d max ) , 5 cm, 10 cm, 20 cm and 30 cm depths and measured dose profiles using CC13 ion chamber at the same depths for field sizes of 2 × 2 cm 2 , 10 × 10 cm 2 and 30 × 30 cm 2 .

Article Snippet: This data of beam profiles and depth dose curves for beam configuration were measured using CC13 ion chambers (Wellhofer Scanditronix, Germany).

Techniques: Comparison

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Convolution kernel shaping parameters for ionization chambers obtained relative to the Edge detector for cross-plane and in-plane measurements. Data were collected on an Elekta Synergy at nominal energy 6 MV and field size 10×10 cm 2 . Averaged shaping parameters are from all shaping parameters obtained for all measurement depths in the range 0.8–25 cm and all SSDs in the range 90–110 cm. The maximum and minimum observed shaping parameters are also presented.

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques:

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Kernels obtained for a CC04 ionization chamber relative to the Edge detector (a) at 95 cm SSD for an Elekta Synergy and nominal energy 6 MV. The detector point of measurement varied from 0.8 to 25 cm. (b) shows a selection of calculated kernels, averaged over the measurement depth range of 0.8–25 cm, obtained for a CC13 ionization chamber, relative to the Edge detector, at 90 cm SSD. The field size and energy are given. The accelerator make to which the data are associated are listed as Elekta Synergy (E), Varian Trilogy (V), and Siemens Oncor (S).

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques: Selection

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: (a) Measured CC04 (circle) cross-plane ionization chamber data obtained for an Elekta Synergy at 95 cm SSD and 10 cm depth for a 10×10 cm2 field and 6 MV beam. Corresponding deconvolved CC04 (square) and Edge (line) cross-plane profiles are shown. (b) shows a measured CC13 (circle) ionization chamber cross-plane profile obtained for an Elekta Synergy at 90 cm SSD and 15 cm depth for a 4×4 cm2 field and 6 MV beam. The deconvolved CC13 (square) profile and measured Edge (line) cross-plane profile are shown.

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques:

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Calculated convolution kernels obtained for a 6 MV beam on an Elekta Synergy at 90 cm SSD and 10 cm measurement depth. Kernels are shown for the CC13 ionization chamber relative to the Edge detector for both in-plane (dashed) and cross-plane (solid) profile measurements. Kernels are shown for the FC65 ionization chamber relative to the Edge detector for both cross-plane (square) and in-plane (circle) profile measurements

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques:

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Convolution kernel shaping parameters obtained for a CC13 ionization chamber obtained relative to the Edge detector at an SSD of 90 cm. Averaged shaping parameters are from all shaping parameters obtained for all measurement depths in the range 0.8–25 cm. Data were collected on an Elekta Synergy at nominal energy 6 MV and field size of 10×10 cm 2 .

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques:

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Convolution kernel shaping parameters obtained for a CC13 ionization chamber obtained relative to the Edge detector at 90 cm SSD. Shaping parameters shown are averaged from shaping parameters obtained for all measurement depths in the range 0.8–25 cm. Data are shown for a Varian Trilogy and Siemens Oncor at a nominal energy of 6 MV.

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques:

Journal: Medical Physics

Article Title: Assessment of the setup dependence of detector response functions for mega-voltage linear accelerators

doi: 10.1118/1.3284529

Figure Lengend Snippet: Measured CC13 ionization chamber cross-plane profile (line-circle) obtained on an Elekta Synergy for a 10×10 cm2 at nominal energy 6 MV, 90 cm SSD, and 10 cm measurement depth. Deconvolution was performed using the averaged kernel parameter (dot) and the averaged kernel parameter +10% (solid) and −10% (dashed).

Article Snippet: 5 , 6 are shown in Fig. for CC04 and CC13 ionization chambers for 10×10 and 4×4 cm 2 fields, respectively, for the Elekta Synergy at 6 MV.

Techniques: