For gamma ray sources, radiographic intensity is proportional to source activity in gigabecquerels or curies for:

Related MCQs

• A radiographic exposure with 3700 GBq (100 Ci) source of Ir-192 using source to film distance of 60 cm results in a radiation intensity of 0.12 Gy/h (11.8 R/h) and a radiographic density of 2.5. The intensity of radiation needed to obtain the same density when the source to film distance is changed to120 cm is:
• Which of the following is an advantage of X ray over gamma ray sources for radiography?
• Which of the following is an advantage of X ray over gamma ray sources for radiography?
• Which of the following is an advantage of gamma ray over X ray sources for radiography?
• Gamma ray or high voltage X ray radiography, using film without lead screens, is likely to result in:
• As radiation (X ray or gamma ray) energy is lowered:
• Gamma ray or high voltage X ray radiography, using film without lead screens, is likely to result in:
• If it were necessary to radiograph 18 cm (7 in.) thick steel product, which of the following gamma ray sources would most be used?
• The degree of concentration of the radioactive material in gamma ray sources is referred to as the:
• An advantage of a gamma ray source is: