Lecture 1

Question 1

When matter is altered …..

Answer 1

Energy results

Question 2

What’s atomic number … تذكري العدد الذري يطلب شي واحد لصغره

Answer 2

Number of protons

Question 3

What’s atomic mass …

Answer 3

Proton + neutrons

Question 4

عشان تكون الذرة متعادله لازم ….

Answer 4

عدد البروتون = عدد الالكترون

Question 5

How much shells in atom

Answer 5

Maximum 7 shells
كلمنو
K L M n o

Question 6

She’ll closer to nucleons has …..

Answer 6

Higher binding energy

Question 7

(….) emission and propagation of E in form waves or particle

Answer 7

Radiation

Question 8

X ray consider as ionizing radiation- t or f

Answer 8

T

Question 9

What’s mean ( ionizing radiation )

Answer 9

Is capable of produce ions by removing or adding e in atom

Question 10

X ray which type of radiation ؟

Answer 10

EM

Question 11

(——) transfer of E by high V subatomic particles

Answer 11

Particulate

Question 12

(——) transfer of E in form of waves at speed of light and as combination of E and M field

Answer 12

EM

Question 13

Eg of particulate —-

Answer 13

Alpha
Protons
Neutrons
Electron * beta and cathode rays*

Question 14

Eg of EM —-

Answer 14

Gamma
X rays

Question 15

Another eg of EM

Answer 15

Uv
Light rays
Infra-red radiation
Radio waves

Question 16

In x ray / em radiation may :

Answer 16

Travel as waves form
Travel at speed of light
Discrete bundles of E known as photon having no mass or w

Question 17

What properties of x rays : وهي نفسها مواصفات ال em radiation

Answer 17

**X ray travel straight lines
**- - travel at same speed of light 186000 miles /s
*اكس راي غير مرئية وبدون وزن ولا اقدر اشوفها او اسمعها او احس فيها
+ can nnnnot reflected refracted forced to point
ممكن تنحرف ديفلكتيد لكن ال new
.trajectory يكون مستقيم
X ray nooo electric charge and not deviated with magnet

Question 18

مهم
X ray is type of ——

Answer 18

Ionizing radiation

Question 19

Penetration is selective depending on/

Answer 19

Density of object they strike الذي يصطدم
Wave length of x rays

Question 20

Shorter wave length ——-

Answer 20

More penetration

Question 21

——— are based on fluorescent properties of x ray

Answer 21

Intensifying screens

Question 22

تأثير الاكس راي البيولوجي

Answer 22

Somatic and genetic

Question 23

External comment of x ray machine

Answer 23

1- tubehead (. داخله اكس راي تيوب)
2-positioning arms
3- control panel

Question 24

Heavy metal housing in tube head function is contain

Answer 24

Protect x ray tube
Prevent unnecessary radiation exposure to surroundings
Grounds high voltage components يقصد المحولات اللي هي الترانسفورمزم

Question 25

Pid postion indicating device found in

Answer 25

Tubehead

Question 26

Cathode مكون من

Answer 26

Tungsten filament

Question 27

Filter is consider one of tubehead accessories and it’s ——

Answer 27

Alumimumn disks btw x ray tube and collimator ويسمح بمرور فقط : more penetration radiation short limda and high energy

Question 28

Where filter located

Answer 28

In end of PID which attaches to tubehead

Question 29

Cillamtor is one of tubehead accessories and it’s function ….

Answer 29

Used for safety to reduce exposure to patient + increase sharpness of image (reduce scatter مبدد مبعثر ) + restrict limit size and shape of x ray beam just to cover film receptor

Question 30

How size we used Pid —-

Answer 30

Long 12 inch

Question 31

The crest value of voltage ——

Answer 31

Kiolvolt peak

Question 32

Quantity

Answer 32

Ma

Question 33

Quality kvp

Question 34

EM radiation arranged according to their ———-

Answer 34

energy

Question 35

Control Panel contain

Answer 35

Main on/off switch Timer Exposure time selector Warning light and audible signal

Question 36

Feature of control panel ;

Answer 36

Digital and film mode selector Film speed selector Patient size selector kVp selector mA selector

Question 37

Function of cathode —-

Answer 37

To supply electron المهمة لي for X-ray production

Question 38

Function of anode —-

Answer 38

Convert energy of electrons into X-rays

Question 39

What line focus principle ——

Answer 39

Use of 20 angle of target face *anode* provide small effective focal spot which lead to sharper image صورة اوضح