SQUID sensors are used in
A)positron emission tomography (PET) scans.
B) functional magnetic resonance imaging (fMRI).
C) magnetoencephalography (MEG).
D) electroencephalography (EEG).

Question

SQUID sensors are used in 
A)positron emission tomography (PET) scans. 
B) functional magnetic resonance imaging (fMRI).​ 
C) magnetoencephalography (MEG).​ 
D) electroencephalography (EEG).​

Quizplus · Accepted Answer

SQUID sensors are commonly used in magnetoencephalography (MEG) to measure the magnetic fields generated by neuronal activity in the brain. They are highly sensitive detectors that can pick up very small magnetic signals, making them ideal for this application. SQUID sensors are not used in PET scans, fMRI, or EEG. PET scans use radioactive tracers to detect metabolic activity in the brain, while fMRI detects changes in blood flow. EEG measures electrical activity in the brain using electrodes placed on the scalp.

SQUID Sensors Are Used in