Assessing the deviation from the inverse square law for orthovoltage beams with closed‐ended applicators
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چکیده
منابع مشابه
Assessing the deviation from the inverse square law for orthovoltage beams with closed‐ended applicators
In this report, we quantify the divergence from the inverse square law (ISL) of the beam output as a function of distance (standoff) from closed-ended applicators for a modern clinical orthovoltage unit. The divergence is clinically significant exceeding 3% at a 1.2 cm distance for 4 × 4 and 10 × 10 cm2 closed-ended applicators. For all investigated cases, the measured dose falloff is more rapi...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2014
ISSN: 1526-9914,1526-9914
DOI: 10.1120/jacmp.v15i4.4893