Protons

Cylindrical chambers

Plane-parallel chambers

Component

Protons

⁶⁰Co + protons

Protons

⁶⁰Co + protons

s_w,air

1.0

1.2

1.0

1.2

W_air/e

0.4

0.5

0.4

0.5

p_Q (combined)

0.8

1.1

0.7

1.7

Total uncertainy in k_Q,Qo

-

1.7

-

2.1