Ch4-5

Question 1

Units used from 1900-1930 were called ?

Answer 1

Skin erythema dose

Question 2

A measure of the amount of radiant energy that has been thrust into a patients body surface

Answer 2

DAP

Question 3

The amount of energy transferred on average by incident radiation to an object per unit length of track

Answer 3

LET

Question 4

The product

DxWrxWt

Answer 4

EfD

Effective dose

Question 5

Product of

D x Wr

Answer 5

Equivalent Dose

EqD

Question 6

Blood disorder resulting from bone marrow failure after exposure

Answer 6

Aplastic anemia

Question 7

Short wavelength, high energy, electromagnetic wave emitted by the nuclei

Answer 7

Gamma radiation

Question 8

Radiation dosimetery quantity that was defined by the NRC to monitor n control human exposure. To keep track for the course of the year

Answer 8

TEDE

Question 9

The SI unit for radiation exposure or air Kerma ?

Answer 9

C/kg

Question 10

A dimensionless factor( or multiplier) that places risks associated with biological effects on a common scale

Answer 10

Wr

Question 11

Who invented the fluoroscope?

Answer 11

Thomas Edison

Question 12

The ampre is the SI unit of:

Answer 12

Electric current

Question 13

The whole body TEDE regulatory limit for exposed personnel is________ and__________ for the general public

Answer 13

.05 Sv

.001 Sv

Question 14

Which radiation quantity is used to describe of a population or group from low doses of different ionizing radiation ?

Answer 14

ColEfD

Question 15

Which quantity provides a measure of overall risk of exposure to humans of ionizing radiation ?

Answer 15

Effective dose

EfD

Question 16

Fluoroscopic entrance exposure is measured in ?

Answer 16

Mgy/min

Question 17

In radiation therapy the unit used for recording Dose is ?

Answer 17

cGy

Question 18

In 1937, _________ became the international unit of measure for x radiation and gamma radiation

Answer 18

Roentgen

Question 19

In 1980, the ________ adopted the SI unit system (aka metric system) for use of ionizing radiation

Answer 19

ICRU

Question 20

The instrument used to calibrate air Kerma is a standard or free air _________

Answer 20

Ionizing chamber

Question 21

The 1st to die of radiation induced cancer in 1904?

Answer 21

Clarence dally

Question 22

What unit replaced the tolerance dose for radiation protection purposes in the 1950s

Answer 22

MPD

Maximum permissible dose

Question 23

The importance of The most important theory; the Bragg-gray theory by Louis Harold gray?

Answer 23

Ionization produced in a small cavity w/in irradiated medium

Question 24

Dap can be calculated to get what in units?

Answer 24

mGr-cm2

Question 25

The unit for ColEfD is

Answer 25

Person-sievert

Question 26

The ionizing chamber -type survey meter is also known as?

Answer 26

Cutie pie

Question 27

The personal dosimeter that uses a laser light during the read out is called?

Answer 27

The OSL

Also contain al2O3 aluminum oxide to detect radiation

Question 28

The TLD Dosimeter uses what physical properties to calculate ionizing radiation ?

Answer 28

LiF

Lithium fluoride

Question 29

The OSL dosimeter detects a reading as low as _____

Of X-rays and gamma rays in the range of 5keV to 40MeV

Answer 29

1mrem

Question 30

An extremity dosimeter or TLD ring are used to approximate equivalent dose of _________

Answer 30

The hands!

Question 31

What instrument is used to locate lost radioactive or low detective radioactive contamination ?

Answer 31

A GM Meter

Question 32

What is the annual EfD limit ??

Answer 32

50mSv (5Rem)

Question 33

Penetrating rays of the skin developed reddening of the skin called?

Answer 33

Radiodermatitis

Question 34

MPD unit was initially called ??

Answer 34

Rem

Question 35

The MPD removes the notion of —

Answer 35

“Tolerance dose”