Physics Bushong

Structures that absorb X-rays

Structures that transmit X-rays

The Inverse Square Law can be applied to distances greater than _________ times the longest dimension of the source

States that the intensity of radiation at a location is inversely proportional to the square of its distance from the source.

A discrete bundle of energy

Photon energy is directly proportional to

Photon energy is ____________ proportional to photon wavelength

X-rays exist:

E=hf

The longer the wavelength, the _____________ the energy of each photon.

The law of conservation of mass & energy states:

The properties of elctromagnetic radiation include:
(4)

Electromagnetic energy exists over a wide range called:

An atom of light

The smallest quantity of any type of electromagnetic energy

A photon may be pictured as a small bundle of energy, sometimes called a

A quantum of electromagnetic energy

Energy disturbances that move through space at the speed of light

Mass of a photon

Speed of light

The velocity of electromagnetic radiation

Variations of amplitude over time

One-half the range from crest to valley over which the sine wave varies

The number of wavelengths that pass a point of observation per second

The rate of rise and fall

What is frequency measured in?

The distance from one crest to another, one valley to another or from any point on the sine wave to the next corresponding point

What are the 3 parameters needed to describe electromagnetic energy?

At a given velocity _______________ & ______________ are inversely proportional

For electromagnetic energy, frequency and ____________ are inversely proportional

The deviation of course that occurs when photons of visible light traveling in straight lines pass from one transparent medium to another

________ light consists of photons with wavelengths longer than visible light but shorter than microwaves

___________ light is between visible light & ionizing radiation on the spectrum

An x-ray photon contains ___________ energy than a visible light photon or an RF photon

The frequency of x-radiation is much _________ and the wavelength is much _________ than for other types of electromagnetic energy

Where are x-rays produced?

Where are gamma rays produced?

A photon of x-radiation & a photon of visible light are fundamentally the same except that x-radiation has ________ frequency & hence a _________ wavelength

X-rays are identified by

Visible light tends to behave more like

X-ray photons tend to behave more like

The reduction in intesnsity that results from scattering and absorption

Transfer of energy from an electromagnetic field to matter.

Removal of x-rays from a beam via the photoelectric effect.

Return or re-entry of an x-ray

Passage of an x-ray beam through an anatomical part with no interaction with anatomical structures