In absorption meter, which of the following is adjusted until the absorption of two X-ray beams are brought into balance?
A. Collimator
B. Filter
C. Photomultiplier tube
D. Attenuator
Answer:D
In absorption meter, which of the following is adjusted until the absorption of two X-ray beams are brought into balance?
A. Collimator B. Filter C. Photomultiplier tube D. Attenuator
Explanation: In absorption meter, the attenuator is adjusted until the absorption of two X-ray beams are brought into balance. A variable thickness aluminium attenuator is used.