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Physical principle of nuclear medicine imagining:Since the gamma camera obtain the image in less time, it is usually preferred over the rectilinear scanner
Thyroid imagining:
-About 4MBq of 131I is given orally the body the day before scan, or we can use 99mTcO4 which is taken by the same tissues that take up iodine.-Tc is preferred since it gives a much smaller radiation dose to the patient.-123I it lack of beta emission is also used
Liver:- Normal liver tissue will filter radioactive submicroscopic particles from the blood ,while the tumor in the liver will not and appear on the scan as an area of reduced radioactivity.- For liver scan ,200 Mq of 99m Tc –labeled sulfur colloid with particles about 0.5 µm in diameter is injected into a vein and image is obtained after 10 min.
Brain Tumor:- When injected into the blood ,different radioactive material are taken up bitterly by brain tumors than by surrounding normal brain tissue.- About 500MBq of 99mTc is given ,after 2 hour four gamma camera images (the front ,back ,left and right sides of head) are taken
CELL CAPACITY The amount of electrical energy that a cell can provide from new to the end of its useful voltage on load is called the cell capacity and is quoted in Ampere hour
a) Formation of domains b) On the basis of domains formed c) These are strongly attracted in an external magnetic field i.e. they easily go from low to high field region d
2D representation of the diamond unit cell In a 2D projection of the diamond unit cell, the base plane of the unit cell ABCD is shown by a square and the atoms in the base pla
what are the characterstics of laser?
State Gauss's law. The total flux of the electric field E over whichever closed surface is equal to 1/ε o times the net charge enclosed by the surface. That is φ = q / ε
What are coiled roped and woven/knitted optics? Simply woven or braided ropes manufactured along with thin solid core fiber optics, in place of hemp or nylon. Due to the stra
Inducing a Positive Charge on a Sphere The given below animation depicts the induction procedure. The neutral conducting sphere is at rest on top of an insulating stand. An unh
What is the appropriate assignment for this particular topic?
Q. Illustrate what are the three particles that make up an atom? Answer:- Atoms are conjured of neutrons, protons, and electrons. The protons as well as neutrons are found
Q. In 17 Cl 35, Compute the number of protons, neutrons and electrons. Number of electrons = 17, Number of protons = 17, Number of neutrons = 18
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