12 Questions
What is the purpose of consulting the X-ray imaging manufacturer regarding the system’s default configuration for calibration?
To streamline the testing process and ensure correct data scaling.
How does selecting high-output mode impact the pulse rate in the IXE system?
It increases the pulse rate compared to low or normal mode.
What is recommended in selecting procedures for acceptance testing of an IXE system?
Select procedures based on the system's primary function.
Which factor influences the default FOV for calibration in an IXE system?
The size of the installed FPIR
Why is it essential to understand the numerous control parameters that affect radiation output?
To streamline the testing process and achieve accurate data scaling.
What is depicted on the right side of Figure 8 in the described geometry?
A homemade supporting table with an opening
What conditions should be considered when measuring actual patient entrance air kerma (AKR)?
Automatic dose control logic enabled, normal positioning of the examination table, use of a table pad, presence of back scatter from any phantom used
When conducting acceptance testing for free-in-air AKR measurements, what attenuation phantom is used?
PMMA slabs
Why might a radiotransparent ionization chamber be employed in place of the SSDS for fluoroscopic automatic exposure control?
To maintain fidelity with clinical patient radiation exposure
What should be done to minimize the influence of the lead backing of SSDS during fluoroscopic automatic control?
Place the radiation detector/probe outside the sensing area(s) for the fluoroscopic automatic control
Why is testing dose rates for recorded/acquisition imaging modes problematic?
Exceedingly high dose rates and absence of regulatory limits on these rates
What precaution should be taken during measurements to avoid excess X-ray tube heat loading and possible sensor 'burn-in'?
Carefully monitor X-ray tube heat loading and sensor 'burn-in'
Learn about the procedures and conditions required for measuring actual patient entrance air kerma (AKR) under realistic clinical settings. This report covers acceptance testing involving free-in-air AKR measurements using attenuation phantoms and copper sheets.
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