physicshw

disscusion.docx

As the lead engineer for a development team, you have to make a decision on what components to use for a new x‐ray imaging system, which is going to be sold to the military for field use. The system is to be transportable and will provide digital x‐ray images of injured body parts. Your team has evaluated the following components, and they all fulfill the military ruggedness specifications:

Xray tube with generator

Voltage Range

Max. Anode Current

Cost

Model A

20‐80 kVp

25 mA

$15,000

Model B

30‐120 kVp

40 mA

$20,000

Digital Image Receptor	Peak Sensitivity	Required Exposure	Cost
Imager 1	60 keV	250 mR	$20,000
Imager 2	80 keV	150 mR	$30,000
Imager 3	100 keV	70 mR	$40,000

Considering all you know about the energy dependence of x‐ray attenuation, image contrast and image noise, and also considering the patient welfare and marketability of your final product, identify the x‐ray‐tube/generator and imager that will be part of the final system and justify your choice. Provide your answer in typed form, double spaced, 150-200 words.