Lead screen are primarily used to:

Related MCQs

• Which of the following is not a function of the lead screen placed around radiographic film?
• Which of the following is a function of the lead screen placed around radiographic film?
• The half value layer of lead for Co-60 is approximately 13 mm (0.5 in). If the radiation level on the source side of a 38 mm (1.5 in) lead plate is 0.64 Gy/h (64 R/h):, the radiation level on the opposite side is:
• An ultrasonic insrument control which is used to adjust the sharpness of the CRT screen display is called:
• Lead intensifying screens are used to:
• An oscilloscope display in which the screen base line is adjusted to represent the one way distance in a test piece is called a:
• In an A scan presentation, the amplitude of vertical indications on the screen represents the:
• The portion of a test piece which is represented by the CRT screen area from zero to the rightmost edge of the initial pulse is called:
• AA screen pattern containing a large number of low-level indications (often reffered to as ‘hash’) could be caused by:
• How many decibels of attenuation correspond to an ultrasonic signal loss of from 100% to 25% on full screen height?