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Multichannel detectors for profile measurements in clinical proton fields
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View: Figures


Image of FIG. 1.
FIG. 1.

Multipad ionization chamber detector installed at the beam isocenter.

Image of FIG. 2.
FIG. 2.

Multilayer ionization chamber detector.

Image of FIG. 3.
FIG. 3.

Linearity of the MPIC detector in dose rate.

Image of FIG. 4.
FIG. 4.

MPIC calibration coefficients.

Image of FIG. 5.
FIG. 5.

Comparison of lateral profiles in a distorted field measured with a small ion chamber in water and with the MPIC detector.

Image of FIG. 6.
FIG. 6.

Linearity of the MLIC in dose rate.

Image of FIG. 7.
FIG. 7.

MLIC response to dose as a function of dose rate at two bias voltages.

Image of FIG. 8.
FIG. 8.

Comparison of depth dose profiles measured with the MLIC detector and a Markus ionization chamber in water. (a) Pristine beams with ranges of (diamonds), (open circles) and (closed circles) were measured with the MLIC; water phantom measurements are shown as solid lines. (b) A SOBP field with range measured with the MLIC and with ion chamber in water. All results are normalized at maximum dose.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Multichannel detectors for profile measurements in clinical proton fields