Ch. 5 Pt. 2 Flash Cd Word Scramble

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

Question	Answer
Roentgen discovered x-rays while working with a_______tube:	Crookes
An "electron cloud" surrounding the filament of the cathode is referred to as a:	space charge
Free electrons for x-ray production come from the:	filament
The creation of the space charge in the x-ray tube produces:	Thermionic Emission
The majority of photons in the x-ray beam are created by which process?	Bremsstrahlung interactions
More than 99% of the electron stream is converted into:	heat
The high-speed rotation of the anode enables:	greater dissipation of heat from high technical factors
The degree of angulation of the x-ray tube target will determine the:	size of the actual and effective focal spot
A dual-focus x-ray tube has:	two-filaments and two focal spot sizes
The anode heel effect is a phenomenon of x-ray production that results in:	uneven distribution of radiation within the x-ray field
To take advantage of the anode heel effect when making a radiograph of the femur in recumbent anteroposterior projection on 35x43 cm image receptor at a 40 inch SID the patient should be placed so that the:	head is toward the cathode end of the tube
The penetrating power of the x-ray beam is controlled by varying the:	kVp
The rate of current flow across the x-ray tube is measured in:	milliamperes
Doubling the mA will result in:	increased patient dose, twice as many photons in the x-ray beam, increased radiographic density.
The unit used to indicate the total quantity of x-ray exposure is:	milliampere-seconds
An x-ray exposure is made using the following factors: 200 mA, 0.02 seconds, 70 kVp, 40 inches SID. The value for the mAs for this exposure is:	4
The device for removing long wavelength radiation from the primary x-ray beam is the:	filter
X-ray equipment capable of producing 70 kVp or more is required to have total filtration of at least:	2.5 mm Al equiv
The purpose of the rotating anode of the x-ray tube is to:	Increase the heat capacity of the anode
Image sharpness is determined by the:	Size of the effective focal spot

Created by: josie.atwood83