SOLUTIONS TO EXERCISES, LESSON 1
1.
Wilhelm Konrad Roentgen
(para 1-2)
2.
Crookes
(para 1-2)
3.
denote an unknown factor
(para 1-2)
4.
roentgen ray
(para 1-3c)
5.
natural background
man-made radiation
(para 1-4a)
6.
Industrial radiation
Medical radiographs
Dental radiographs (para 1-4c)
7.
Cosmic
Earth
Background
(para 1-4b)
8.
a. control panel
b. tube head
c. flexible extension arm
(para 1-6a)
9.
technician
(para 1-8)
10.
Scattered/secondary radiation
(para 1-8)
11.
aluminum filter or disk
(para 1-9b)
12.
The collimator restricts the x-ray beam to the desired size. (para 1-9c)
13.
1/16 inch lead
(para 1-10b(1))
14.
exposure time
(para 1-11)
15.
The technician increases the milliamperes. (para 1-11b)
a. Increased voltage (more shades of gray)
16.
b. Decreased voltage (fewer shades of gray, more black and white shades)
(para 1-11a)
End of Lesson 1
MD0512
1-14
Previous Page
