Mod 6 Flashcards
\_\_\_\_\_\_\_ took the first Intraoral radiograph A-Rollins B-roentgen C-Kells D-walkhoff
D- walkhoff
\_\_\_\_\_\_ was a professor of physics,and discovered x-rays A-roentgen B-walkhoff C-Kells D-rollins
A- roentgen
______ rays are rays that travel in straight lines and give off a green glow
A- light B- ultrasonic
C-cathode D-sound
C-cathode
The loss of a electron is called? A-isotope. B-atomic C-radiation D-ionization
D-ionization
All of the following are examples of electromagnet radiation except?
A-microwaves. B-x-rays
C-gamma rays. D-Beta rays
D-beta rays
The open ended tube,commonly referred to as the cone,is called? A-radiation absorbed dose (rad) B-position indicator device ( pid) C-maximum permissible dose (mpd) D-roentgen equivalent man (rem)
B-position indicator device ( pid)
The \_\_\_\_\_\_ is a negative electrode that produces electrons A-PID B-tube head C-anode D-cathode
D-Cathode
The ____ is the part of the x-ray tube that directs the flow of x-ray,& is made of tungsten target?
A-cathode. B-anode
C-collimator. D-filter
B-anode
The sharpness or definition of radiograph is determined by the? A-focal spot. B-electric circuit C-cathode D-andode
A- focal spot
The ____ is the possitive electrode that sits opposite the cathode within the x-ray tube?
A- tungsten. B-focal point
C-cathode filter. D-andode
D-andode
The electric current flows through the filament circuit, and heats the?
A-cathode filament B-focal point
C-Coolidge. D-tungsten target
A-cathode filament
Thermionic emission is created by a? A-Filament wire heated to incandescence B-vaccume within the tube C- high voltage current D- stream of electrons
A-filament wire heated to incandescence
With in the x ray machine,the direction of the electric current flows from the ?
A-andode to the cathode. B- electric circuit to the cathode
C-filament of the cathode to the target of the anode
D-target of the anode to the filament of the wire
C-filament of the cathode to the target of the anode
____ radiation is the central beam that comes from the x ray tube head
A-scatter. B-primary
C-secondary. D-leakage
B- primary
___ radiation is formed when primary x ray strides or comes in contact with matter
A-secondary. B- primary
C-leakage. D-scatter
A- secondary
\_\_\_\_radiation is deflected from its path as it strikes matter? A-scatter B-primary C-leakage D- secondary
A-scatter
____ radiation is formed when radiation escapes in all directions from the tube or tube head?
A- leakage. B- primary
C-secondary. D- scatter
A- leakage
The two factors involved that determine the damage incurred from radiation exposure are?
A- dose rate and area exposed. B-dosage & location
C- exposure and tissue location
D-dose rate and quantity
A-dose rate and area exposed
The \_\_\_\_ cell has the greatest sensitivity to radiation ? A-lymphocyte B-muscle C-bone D-nerve
A-lymphocyte
Radiation that escapes or leaks out of the tube head is
Leakage radiation
A unit of measurement used to determine the amount of electrical current; 1 mA is equal to 1/1,000 of an ampere
Milliampere (mA)
Small bundle of pure energy that has no mass or weight is
Photon
Initial radiation produced at the tungsten target that exits the tube head is
Primary radiation
A recorded image on photographic film is
Radiograph