Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

DEH 203

Quiz 2

QuestionAnswer
to produce a larger quantity of electrons for the production of x-rays, the radiographer would increase the fallowing mA (milliamperae)
which term describes the electrical pressure or force that drives the electric current through the circuit of the x ray tube? Voltage
the process of heating the cathode wire filament until red hot and electrons are boiled off is termed thermionic emission
which metal is used for the target in the x-ray Tungsten
what percent of the kinetic energy inside the x-ray tube is converted into x-rays 1%
Of the following exposure variables which controls the penetrating power of the x-ray beam kilovoltage
While pressing the exposure button the radiographer seller Will hear an audible beep indicating that x ray are being generated
The step down transformer is located in the cathode circuit (think of cathode and anode as grades... C is - compared to A)
TRUE OR FALSE The metal used for the target within the x-ray tube in modern x-ray tube satisfies all of the properties in an ideal target material FALSE
TRUE OR FALSE? The focal spot improves definition by concentrating electrons into a very small area? TRUE
TRUE OR FALSE? The actual focal spot is rectangular and serves to allow for greater dissipation of the heat generated TRUE
TRUE OR FALSE? X-rays are produced in a series of bursts or pulses rather than as a steady stream TRUE
TRUE OR FALSE when a cathode electron has a head on or glancing collision with a target Adam characteristic radiation is produced FALSE
TRUE OR FALSE characteristic radiation only occurs at or above a Kilovoltage peak of 70 TRUE
TRUE OR FALSE the focusing cup of the x-ray tube is made of Molybdenim TRUE
List the four properties of an ideal target material 1) high atomic number 2) high melting point 3) higher amount of thermal conductivity 4)low vapor pressure
Identify two types of radiation produced within the Xtreme machine General and characteristic
TRUE OR FALSE Milliamperage determines the speed by which the electrons travel to the target FALSE
TRUE OR FALSE the dental x-ray tube is self rectified? TRUE
TRUE OR FALSE the effective focal spot serves to enhance image sharpness TRUE
TRUE OR FALSE A step down transformer has more wire coils in the secondary coil than the primary coil FALSE
Created by: ashblake4