B.Sc-B.Sc Medical Technology 3rd Year BAHI-032: RADIOGRAPHIC IMAGING (Indira Gandhi National Open University (IGNOU), New Delhi-2013)

Friday, 28 March 2014 06:39Nitha

B.Sc. IN MEDICAL IMAGING TECHNOLOGY
(BMIT)

Term-End Examination
June, 2013

BAHI-032: RADIOGRAPHIC IMAGING

Time : 3 hours Maximum Marks : 70

PART - A

1. Fill in the blanks : 10x1=10

(a) The layer of intensifying screen is made up of

(b) The delayed emission of light from a substance even after radiation stop is called

(c) The screen are used when fine detail is required.

(d) The slow film has grain size compared to fast films.

(e) The ratio of exposure without screen to that of the exposure with screen to produce the
same density is called factor.

(f) The degree of blackening produced on the film due to X-rays is termed as

(g) The characteristic curve is drawn between and

(h)The tangent of the angle of slope of the straight line part of characteristic curve is defined as

(i)The image intensifier input phosphor make use of crystal.

(j)Crow's feet mark on the film are due to artifact.

2. Write short notes on the following : 5x4=20

(a) Basic fog

(b) Supercoat of X-ray film

(c) Geometrical unsharpness

(d) Latent image

(e) Safe light in dark room

PART-B

Attempt any four questions : 4x10=40

3. List the constituents of a fixer solution and explain their functions.

4. Write in brief about the construction, care and maintenance of an intensifying screen.

5. Draw and describe the construction of a radiographic film.

6. What special precaution need to be taken when you plan for a dark room ?

7. Write the construction of an automatic processor.

( 0 Votes )

Earning: ₹ 8.10/-