Rad Bio Worksheets (part 2)

Question 1

Standardization of film processing techniques, including monitoring and maintenance of all processors in a facility

Answer 1

Quality control program

Question 2

Hangs over the area of clinical interest to cast a shadow in the primary beam over the patient’s reproductive organs

Answer 2

Shadow shield

Question 3

Front material in a cassette that can result in a lower radiation dose for patient because a lower radiographic technique is used to produce the recorded image

Answer 3

Carbon Fiber

Question 4

Device that increases the patient dose

Answer 4

Radiographic Grid

Question 5

Cup shaped radiopaque device that encloses the scrotum and penis to protect the male reproductive organs from exposure to ionizing radiation

Answer 5

Shaped contact shield

Question 6

Feature of a radiographic collimator that automatically adjusts the collimator so that radiation file size matches the film size

Answer 6

PBL

Question 7

Allows the fluoroscopist to see the most recent image without exposing the patient to another pulse of radiation

Answer 7

Last image hold

Question 8

An interaction that produces a satisfying result through an exchange of information

Answer 8

Effective Communication

Question 9

Thickness of a designed absorber required to reduce the intensity of the primary beam by 50% of its initial value

Answer 9

HVL

Question 10

Sheets of aluminum of appropriate thickness localized outside the glass window of the x-rays tube housing above the collimator shutters

Answer 10

Added Filtration

Question 11

Alternative to using a radiographic grid to reduce scattered radiation during certain examinations

Answer 11

Air gap technique

Question 12

The distance from the anode focal spot to the radiographic image receptor

Answer 12

SID

Question 13

The glass envelope encasing the x-ray tube, the insulating oil surrounding the tube, and the glass window in the tube housing

Answer 13

Inherent filtration

Question 14

Devices used during diagnostic x-ray procedures to protect the reproductive organs from exposure to the useful beam while they are in or within approximately 5cm of properly collimated beam

Answer 14

Gonadal Shielding

Question 15

Process in which the invisible, or latent image, generated in conventional radiography in produced in a digital format using computer technology; the digital image can be displayed on a monitor for viewing or printed on a laser film when hard copy is needed

Answer 15

Computed Radiography (CR)

Question 16

Quantity of radiation incident upon an object; backscatter is excluded

Answer 16

ESE

Question 17

Image produced by computer representation of anatomic information

Answer 17

Digital Image

Question 18

Radiation exposure received by the male and female reproductive organs

Answer 18

Gonadal dose

Question 19

X-rays emitted from parts of the tube other than the focal spot

Answer 19

Off focus radiation

Question 20

An operating mode of fluoroscopic equipment in which exposure rates are significantly higher than normally allowed for routine fluoroscopic procedures; this allows visualization of smaller and lower contrast objects than normally are visible during fluoroscopy

Answer 20

High level control fluoroscopy (HLCF)

Question 21

The equivalent dose to the reproductive organs that, if received by every human being, would be expected to cause an identical gross genetic injury to the total population as does the sum of the actual doses received by exposed individual population members

Answer 21

Genetically significant dose (GSD)

Question 22

Faint blotches in the radiographic image produced by an intrinsic fluctuation in the incident photon intensity

Answer 22

Quantum mottle

Question 23

Radiation that emerges directly from the x-ray tube collimator and moves without deflection toward a wall, door, viewing window, and so on

Answer 23

Useful beam

Question 24

All the radiation that arises from the interactions of an x-ray beam with the atoms of an object in the path of the beam

Answer 24

Scattered radiation

Question 25

Projects down from the x-ray tube housing to prevent the collimator from moving closer than 15cm to the patient

Answer 25

Spacer bars