Exam 1 - 3. Radiation Physics Flashcards
4
Electricity is the _____.
4
Current is the amount of _______ and it is measured in _____.
4
Circuit is the ______.
4
Voltage is the ____.
5
An impulse is when the current ______. An impulse is ___ cycles per second.
5
X rays are produced only when current ______, not ____.
5
With an impulse, you get _____ of x-rays per second. Each burst is called a ___ or ____.
6
During each half cycle (____ of a second), the anode is ____ and _______. ____ is produced.
6
During each alternate half-cycle (____ of a second), the anode is ____ and therefore ______ exists and ______. This is called ______.
7
In full wace rectification, X-rays are produced _____.
8
What are three ways to increase efficiency of X-ray production?
9
What are four advantages of constant potential and direct current?
10
X-rays are produced whenever ______.
11
What are two mechanisms for x-ray formation?
11
What is another name for Bremsstraahlung radiation?
11
Bremsstrahlung radiation involves ______ interaction.
11
In Bremsstrahlung radiation, the fast-moving electrons either _____ or _____ when they come close to the _____ and part of their energy is ________.
11
What is the primary source of X-rays?
11
Characteristic radiation involves _____ interaction.
11
In characteristic radiation, a few electrons interact with ______, imparting enough energy to _____.
11
Characterisitic radiation is produced when _________.
11
Characteristic radiation accounts for ____.
12
Bremsstraglung radiation involves a ____ with the nucleus. Then, the impinging electron is ______ and ________ by the nucleus. Kinetic energy lost is emitted as ______. There is a head-on collision with the nucleus, where electrons are _____, producing a ______.
13
In Bremsstrahlung radiation, ______ electrons are directed toward the target material.
13
In Bremsstrahlung radiation, all electrons do not _____. Some move at _____, depending on ____.
13
What is the formula for kinetic energy?
13
Bremsstrahlung radiation increases with _______ and _______.
14
In Bremsstrahlung radation, the continuously varying voltage difference between the target and filament causes the electrons striking the target to have _______-.
14
In Bremsstrahlung radiation, the bombarding electrons pass at _____ around the tungsten nuclei and are thus ______. As a result, they give up _______ in the form of _____.
14
Most electrons participate in _____ bremsstrahlung interactions in the target before ______. Consequently, an electron carries ________ after successive interactions with tungsten nuclei.
15
Characteristic radiation arises when the cathode electron _______ and ______. The atom is now ___ and _____. Immediately, the hole left by the electron is filled by ________, and energy is emitted from this electron in the form of x-radiation characteristic of ______ and the ______. The energy emitted by the electron is equivalent to the _________.
16
____% of diagnostic x-ray beam is characteristic radiation.
