Siemens MOBILETT XP, Instructions For Use Manual

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Radiation Calculation
MOBILETT
SPR8-230.621.01.03.02
59
of 106
Radiation Calculation
For MOBILETT XP / XP Hybrid not equipped with the DAP measuring system, it
is possible to estimate the radiation dose area product, see section dose area
product below.
Dose Area Product
The dose area product, DAP ( µ Gy x m2), is a measure both of the absorbed radi-
ation dose and of the area exposed.
The dose area product depends on:
❏ the X-ray tube voltage, U (kV)
❏ the quantity of charge, Q (mAs)
❏ the permanent (inherent) filtration of the single tank (mm Al)
❏ the adjustment of the collimator, Sx and Sy
To get the correct DAP-value it is important that no part of the radiation field
extends outside the object exposed. Make sure to collimate the light field to
proper image size.