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. Author manuscript; available in PMC: 2024 Oct 1.
Published in final edited form as: Health Phys. 2023 Jul 12;125(4):281–288. doi: 10.1097/HP.0000000000001718

Table 2:

Summary of the points of interest used in the analysis using the NCRP Report 151 methodology; Depictions of the points of interest relative to the FLASH EXACT device are shown in Figure 2. Distances to the points of interest are 30 centimeters from the shielding boundary.

Position Description Distance from isocenter
(m)
Concrete Thickness
(cm)
Lead Thickness
(cm)
Area Type Occupancy Factor (NCRP 2015)
1 Control Room 5.99 30 12 Controlled 1
2 Mechanical Room 9.04 28 2.79 Uncontrolled 0.05
3 Public Sitting Area 6.65 113 0.0 Uncontrolled 0.05
4 Office Space 2.54 30 12 Uncontrolled 1
5 Office Space 1st Floor 3.09 48.3 7.62 Uncontrolled 1
6 Garden Area 3.75 85 0.0 Uncontrolled 0.025