What room dimensions are required to install a linear accelerator (LINAC)?

This is a question we often field at ROS. It's also not that easy to find the answer for various manufacturers in one place. We spent some time looking into the IDPs for Varian, Elekta and Siemens. The following table shows the optimal room dimensions for the indicated makes and models.

 Linear Accelerator Optimal Room Height Optimal Room Width Optimal Room Length Base Frame Pit Dimensions (LxWXH)(ft.)
VARIAN
21/23 Series 9 ft. 20 ft. 25 ft. 13.75 x 5.5 x 1
6MV Series 9.5 ft. 20 ft. 22 ft. 10.2 x 5.5 x 1
Silhouette Series 9 ft. 20 ft. 22 ft. 12.2 x 5.5 x 1
ELEKTA
Synergy 10.5 ft. 19.6 ft. 20.7 ft. 4.6 x 5 x .77
Precise 10.5 ft. 19.7 ft. 20.7 ft. 4.6 x 5 x .8 
SIEMENS
Oncor 9.5 ft. 20 ft. 20.5 ft. 11.1 x 5.25 x 1.1

This is for informational purposes only based on past installations and should not be construed as an analysis that should be conducted by an architectural or engineering firm.

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