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Table 1 Doses for 2.5 Gy nominal entrance dose measured with HS film and different collimators.

From: Use of an orthovoltage X-ray treatment unit as a radiation research system in a small-animal cancer model

Collimator

Diameter (cm)

Entrance dose (Gy)

Exit dose (Gy)

Entrance/Exit

C1

0.5

2.47 ± 0.17

2.01 ± 0.17

1.23

C2

1

2.45 ± 0.15

1.98 ± 0.15

1.24

C3

1.5

2.50 ± 0.14

2.07 ± 0.17

1.21

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Journal of Experimental & Clinical Cancer Research

ISSN: 1756-9966

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