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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
Harmonicmotion is considered simple if it is undamped, i.e. if it keep on to oscillate uniformly over time. Of particular interest are the frequency f or also period T of the oscil
Clock spring balance A sensitive balance for use among 0-1 g or 1-10 g is readily made using a piece of clock spring and a block of wood or cotton reel. Fasten the wooden b
A jogger runs at a constant rate of 10.0 m every 2.0 s. The jogger starts at the origin, and runs in the positive direction for 3600.0 s.The figure below is a position-time graph s
What occures to Internal Energy of a system ,if work is done (a) on the system, (b) by the system.
Explain the working of Transformers A transformer often uses a core, which looks like a square donut of iron, to change the voltage applied to the primary coil to a new larger
Why are some flashlights brighter than others?
concave grating and rowland''s mounting theory
Question: Regard as a high school built to handle 1500 students but attended by 2500 students. Between classes the halls are crowded with students moving to their next class. A
Discuss the Factor affecting limiting current.
Working of Current Time base generator
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