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Cable leakage in a PinPoint chamber

Agostinelli

et al

[21]

Normally, the signal from stem and cable irradiation is small enough (< 1 pC/(Gy·cm)) to

be neglected, but the small air volume yields a low detector signal level…

Scan direction

Scan direction

125 mm

3

air ion

chamber

15 mm

3

Pinpoint chamber

0.4 pC/(Gy·cm)

0.2 pC/(Gy·cm)

at 10 cm depth

at 10 cm depth