Select the three factors from the choices below that determine the size of the actual focal spot on the target anode.

A focal spot in the x-ray setup is the area of the anode surface which receives the beam of electrons from the cathode. It is the apparent source of x-rays.

Below are some of the factors that affect its size.

Explanation:

Size of the focal spot depends on

* angle of the anode

Other prime factors that affect x-ray emission; under the control of the radiographer includes;

• Miliamperage-second (mAs)(tube current measurement)

• Kilovoltage (kVp) Controls both the quantity and quality of the x-ray beam with the speed and energy.

• Distance (d) - Related to tube design and construction.

• Tube housing

• Target material

• Filtration

• Voltage waveform

answer: blah

explanation:

bc blah

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.