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SErIES IAEA HumAn HEAltH SErIES IAEA Hum

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Phantom:<br />

CT1<br />

MEASUREMENT OF C a,100 , C PMMA,100,c , C PMMA,100,p AND CALCULATION<br />

OF C w<br />

User: ____________________________________<br />

Date: ________________<br />

Hospital or clinic name: ________________________________________________________<br />

1. X ray equipment<br />

CT scanner model:_____________________________________<br />

Room No.: _______.<br />

2. Ionization chamber, electrometer and phantom<br />

Dosimeter model: ___________________ Serial No.: _______ Calibration date:<br />

____________<br />

Calibration coefficient<br />

N PKL,Q 0<br />

: 1 __________________<br />

mGy·cm/nC<br />

mGy·cm/reading<br />

Reference conditions: Beam quality: ___________ HVL (mm Al): _________<br />

Pressure, P 0 (kPa): ________<br />

Temperature, T 0 ( o C): ____<br />

Manufacturer of phantom: ________________________<br />

Serial No.: _______<br />

Conditions during measurement:<br />

Pressure (kPa): ____<br />

Temperature ( o C): ____<br />

T P<br />

kTP = Ê 273.<br />

2 + ˆ<br />

Á<br />

Ë + T<br />

˜ Ê 0 ˆ<br />

273 2 ¯ Ë<br />

Á<br />

P ¯<br />

˜ = _______.<br />

. 0<br />

1<br />

This is the calibration coefficient for the whole dosimeter, including the detector and<br />

the measurement assembly. For systems with separate calibration coefficients for the detector<br />

and measurement assembly, the overall calibration coefficient is calculated as a product of the<br />

two separate calibration coefficients.<br />

189

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