**< Lung Field such as SRS
>**

**- Clarkson vs Superposition
-**

**3DCRT**

** Clarkson Superposition**

The difference of total DMU was 3.7% by each algorithm.

**CFIMRT**

** Clarkson Superposition**

The difference of total DMU was 3.0% by each algorithm.

**CFIMRT**

**Clarkson Superposition**

The dose distribution by Clarkson algorithm is
not so different from that of superposition algorithm. Total DMU is very near by
each algorithm. The** difference was 1.4%** by each algorithm.

**Thus, very exact dose calculation
is possible in CFIMRT**

last modification date: 2006/04/05