In preparation for an MRI scan, why are patients advised to remove eyeglasses, watches, jewelry, and other metal objects?

Q: A sample containing I-131 has an activity of 6.40 × 108 Bq. How many days later will the sample have…

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Q: In preparation for an MRI scan, why are patients advised to remove sunglasses, jewellery, watches…

A: MRI is the image formed with help of magnetic resonance process. It use strong field of magnet and…

Q: 60KN 40KN D 4m 2m 6m RD RA

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Q: Among cobalt-60 and LINAC, which one is best for colon cancer, and why? Explain your answer in…

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Q: What happens when beta radiations are passed through amagnetic field?

A: When beta radiations are passed through a magnetic field they will get deflected by the magnetic…

Q: A batch of I-125 seeds is ordered so that the activity will be 0.48 mCi/seed on the day of the…

A: activity (A) = 0.48 mCi t = 5 days half life of I-125 = 60 days

Q: What's an atom ?

A: Atom is a basic divisible unit of matter.Atom contains electrons(negatively charged particles),…

Q: hromium-51 is used in imaging red blood cells and has an effective half-life of 27 days.   If a dose…

A: Given: The half-life time of the red blood cell is 27 days. The initial activity is 24 μCi. The…

Q: 3. AAAAA 40 60 find 19alue of x

A:

Q: Question 1. There are four factors: A, B, C, D. We assume that each replicate was considered as a…

A: Yate's Algorithm: Note: X=factorial effect X and total SSX=sum of squares due to X=X232…

Q: In what sample rate and bit rate should you record regular music?

A: Changing the sample rate from from a high sample rate to a lower sample rate can slightly modify…

Q: PRN DRE to +

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Q: Describe RBE.

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Q: N-type sample has minority carrier concentration of 10^1/m ^3 , if ni=2.5×10^1m ^3 , the majority *…

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Q: What is the difference between a scanning electron microscope and scanning a probe microscope?

A: SOlution: The difference between a scanning electron microscope and scanning a probe microscope.

Q: 20 What is the force of repulsion between two argon nuclei that are separated by 1.0 nm (10 m on an…

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Q: What is beta particle?

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Q: 7.50 mCi of 99m Tc is used in a brain scan. What is the mass of technetium?

A: Here, the activity is The equation for the activity is

Q: Radiotherapy is more likely to be used to treat cancer in elderly patients than in young ones.…

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Q: All these medical procedure make direct use of radioisotope, EXCEPT: Group of answer choices…

A: Tc 99 scan, brachytherapy and PET scan use radioisotopes directly but x ray treatment of cancer uses…

Q: How many electrons does Cl 1– have?

A: We need to determine number of electrons in Cl1- ion.

Q: 44.06522=9.53(0.23+0.0045(T-293.15))   Solve for T temp

A: Given question is simple math calculation for finding T(temperature).

Q: Some types of MRI can produce images of resolution and detail similar to PET. Though the images are…

A: MRI and PET produces image of internal organ but there is some slight difference between both…

Q: If you have a 450 mircocoulomb charge attached to an element how many excess protons would you…

A: Given: The charge on the element is 450 μC.

Q: A patient with thyroid cancer is given a sample of lodine-131 which has a half-life of 8 days. If…

A:

Q: What holds the nucleus together?

A: Nucleus: A nucleus is a group which mainly consists of two bodies that are proton and neutron. The…

Q: If Th-234 emits a beta particle, what nucleus is formed?

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Q: What fundamental force binds the nucleus of an atom together?

A: There is a total of four fundamental forces present in the universe and out of which the strong…

Q: 13. Assume that concentrations of Pb in rainwater collected in Minneapolis was found to be 9.5 µg/L.…

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Q: A sample containing l-131 has an activity of 6.40 x 10° Bq. How many days later will the sample have…

A:

Q: Explain binding energy

A: Binding energy

Q: PET scans often show an artificially high level of radioactivity in the lungs.

A: Solution

Q: How many Faraday is needed to deposit 1.6 g of Calcium (Ca) fråm CaCl2 solution using electrolysis…

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Q: What is the difference between fast scan and slow scan in CT?

A: Computed tomography, also known as 'CT scan' is used to examine the structures inside human body. A…

Q: What will be the result when you apply binary addition to (10110) (01111) numbers (both of them are…

A: Answer             c) (100101)2

Q: MRI is based on which effect?

A: MRI is based on the principle of Nuclear magnetic resonance (NMR). This technique is used to get…

Q: What is the age in years of a bone in which the 14C/12C ratio is measured to be 1.65 * 10-13?

A: Here, N0N=1.3×10-12measured value 14C12C    ...... (I) We know, lnN0N=0.693tt12N0N=2tt12…

Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.