Flashcards in Radiologic units Deck (35):

0

## Modern form of the metric system

### International System of Units

1

## The amount of radiation delivered to a point

### Exposure

2

## Convetional unit for exposure

### Roentgen

3

## SI unit for exposure

### Coulomb per kilogram

4

## Quantity of Xray or gamma ray

### Roentgen

5

## Most commonly is used when performing calculation on gasses

### Standard Temperature Pressure

6

## 1 R

### 2.58 x 10^ 4 C/kg

7

## 1 C/kg

### 3876 R

8

## Unit of electrical charge

### Coulomb

9

## 1 coulomb

### 6.242 x 10^16 ionizations

10

## Concentration of radiation energy absorbed at a specific point

### Absorbed dose

11

## Conventional unit for absorbed dose

### rad

13

## SI unit of absorbed dose

### Gray

14

## Pioneer in the field of measurement of radium radiation

### Louis Harold Gray

15

## 1 Rad

### 100 erg/g

16

## 1 Gy

### 100 rad

17

## Use to express the biological impact of radiation on persons

### Dose equivalent (H)

18

## Unit for dose equivalent

### Rem

19

## Si unit for dose equivalent

### Sv (Sievert)

20

## A swedish medical physicist renowned for work on radiation dosage measurement

### Rolf Maximilian Sievert

21

## Quantity for expressing relative risk to humans

### Effective dose

22

## Use to determine the effective dose from the equivalent dose

### Tissue Weighing Factor

23

## Represent radiation harm for which there is no threshold

### Probabilistic effects / Stochastic

24

## Refers to the number of atoms disintegrating per second

### Activity

25

## Traditional unit for activity

### Curie

26

## Si unit for activity

### Becquerel

27

## 1 Ci

### 3.7x10^10 DPS

28

## A substance studied by the curies

### Ra 226

29

## 3.7 x 10^10 Bq

### 37 GBq

30

## 1 Bq

### 2.7x 10^-11 Ci

31

## Expresses how much ionization the beam causes

### Exposure

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## Quantity of radiation energy absorbed per unit mass of tissue

### Absorbed dose

57

## The amount of exposure that will produce 2.58 x 10-4 c

### Roentgen

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## 1 Sv

### 100 rem

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