Discuss what happens to the absorption coefficient as an X-ray beam passes from muscle to bone.
As x rays are the high energy rays so the muscle and tissues with less absorption coefficient.these are mostly absorbed by dense structures. As we know bones have the dense structure. So they have more absorption coefficient.
So absorption coefficient of x rays increases from muscle to bone.
Discuss what happens to the absorption coefficient as an X-ray beam passes from muscle to bone.
Calculate the attenuation coefficient of a material if the intensity of the X-ray beam is reduced to half as it passes through a thickness of 1 cm of the material.
Calculate the transmitted intensity. Absorption coefficient of muscle: u = 6.3/m Absorption coefficient of water: u = 5.5/m Thickness of muscle: x = 0.2 m Depth of water: x = 0.2 m Assume that the incident intensity remains the same throughout.
You are working on muscle atrophy. Discuss what happens in atrophy and how muscle mass can increase upon recovery from atrophy, and how under these conditions, contractile force generated for a given stimulus would be affected. Give an explanation to a patient (without a strong science background) how stimulation of skeletal muscles can result in different strength contractions using language they can understand
Calculate the reflected percentage of an ultrasound wave passing from human muscle into bone. Muscle has a typical density of 1.06 x 103 kg/m3 and bone has a typical density of 1.80 x 103 kg/m3 (Give answer in %)
3) Discuss daily movement of calcium throughout the body (from dietary absorption through bone deposition or renal excretion). How does daily phosphate movement compare?
how do x-ray absorption and production differ from UV-Vis production and absorption?
Problem 2. X-rays a) Maybe the most common characterization method that uses X-rays, is X-ray Absorption Imaging. This is basically the same technique as used in hospitals and dentistry. i. What is the sample/ material parameter that makes contrast (dark/ bright image features) in an X-ray absorption image? ii. Explain what is meant by (2D) X-ray Absorption Imaging being a “shadow image”. iii. What limits the resolution in an X-ray Absorption Image? b) Most X-ray based spectroscopy techniques have an...
X-RAY CT a) Consider a 20 cm path through water, with a small piece of bone of thickness x. Assuming water has an attenuation coefficient of 0.3 cm-1, and bone of 1.0 cm-1, how thick would the bone have to be to reduce the number of photons detected by 10%? b) Partial volume effects are troublesome when imaging some portions of the brain. Illustrate where partial volume effects lead to loss of tissue visualization. Suggest three independent ways to potentially...
A light ray passes from water into ice. If the transmitted ray makes an angle of 20° with the normal a) (10 pts) What is the angle of incidence? *Hint* n (ice) 1.310
A ray from an object passes through a thin lens, as shown in the figure. What can we conclude about the lens from this ray?
A. It must be a diverging lens.
B. It could be either a converging or a diverging lens.
C.It must be a converging lens.