Table 1.

Mechanical and dosimetric quality assurance tests

A. Mechanical Quality Assurance Tests

1. Stability of dMLC

a) Picket Fence Test

b) Garden Fence Test

2. Leaf speed and Stability test (with and without beam interruption)

3. Evaluation of standard patterns

a) Synchronized and Non Synchronized Segmented Stripes

b) X wedge

c) Y Wedge

d) Pyramids

e) Complex fields

4. Additional test patterns (Chess shape, “h” letter shape)

B. Dosimetric Quality Assurance Tests

1. Output Stability

2. Variation in output for Different Sweeping Gap width

3. Determination of Dosimetric Leaf Separation

4. Dosimetric verification of the IMRT Delivery System

5. Validation of IMRT Treatment Plans