Answer:
Given
Per Kg of body mass, there is 3 gram of potassium
And abundance of three isotopes are as follows
Potassium-39, Potassium-40, and Potassium-41. Have abundances respectively as 93.26%, 0.012% and 6.728%.
1) A body weighing 80 Kg will have 240 grams of potassium. And the amount of Potassium-40 will be 0.012% of 240 gram
= 240*0.012/100 = 0.0288 gram.
2) Dose in (Gy) = (energy absorbed)/(mass of the body) = ( 1.1*106*1.6*10-19)/(80) = 22*10-10 J/kg
Dose (in siverts) = RBE*Dose(in Gy) = 1.2*22*10-10 = 26.4*10-10
They help to prevent the disease from occurring. The immune system becomes familiar with the pathogen and learns how to fight it. Its the same process with vaccines
Answer:
the cranial cavity
Explanation:
contains the most important organ, the brain
In radiology and nuclear medicine, single - photon emission therapy (PET)/computed tomography (CT) scanning is now a standard practice.
<h3>What distinguishes a CT scan from a PET scan?</h3>
The internal organs and tissues of your body are depicted in great detail by a CT scan. A Pet / ct can be more accurate than some other imaging procedures and can detect aberrant activity. Additionally, it can cause your body to alter sooner. PET-CT scans are used by doctors to reveal more details about the cancer.
<h3>What distinguishes an MRI from a PET scan?</h3>
Radio waves and magnets are both used in magnetic resonance imaging (MRI) studies. Both generate static photos of the body's organs and skeletal system. Using a radioactive tracer, PET scans can demonstrate how an organ is working in real time. CT and MRI scans cannot identify cellular responses in tissues and organs as early as PET scan images can.
To know more about Positron emission tomography visit:
brainly.com/question/28113449
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