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Dosimeter characteristics/requirements :

(1) Sensitivity

: must be high enough for low dose rate measurements. If the

sensitivity is too high it may cause rapid saturation at high dose rate

(2)

Adequate

dose range

and (preferably)

linearity of the response

as a

function of accumulated dose

(3) Insensitivity of response to influence quantities

(dose rate, temperature,

pressure, directional effect, accumulated dose, etc.): response should be

independent, or variation should be known or measurable in order to perform

adequate correction

(4) Energy response

: preferably independence of response as a function of energy

(5) Repeatability

: stability for repeated measurements over a short period of time

& Reproducibility

: stability of material, construction, etc. over a long period of

time

(6) Accuracy/precision

: the derivation of the dose from the dosimeter response

must be possible with minimum uncertainty, but the requirements may differ for

d ff

i erent app ications

Quoted from:

Mayles, Nahum, Rosenwald (Eds): Handbook of radiotherapy physics: theory and practice,