Answered: The effect of fast neutrons compared to…

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Biology

The effect of fast neutrons compared to slow neutrons on the biological tissue is greater by

Principles Of Radiographic Imaging: An Art And A Science

6th Edition

ISBN:9781337711067

Author:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Publisher:Richard R. Carlton, Arlene M. Adler, Vesna Balac

Chapter8: X-ray Production

Section: Chapter Questions

Problem 2RQ

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Food is often irradiated with either x rays or electron beams to help prevent spoilage. A low dose of 5–75 kilorads (krad) helps to reduce and kill inactive parasites, a medium dose of 100– 400 krad kills microorganisms and pathogens such as salmonella, and a high dose of 2300–5700 krad sterilizes food so that it can be stored without refrigeration. (a) A dose of 175 krad kills spoilage microorganisms in fish. If x rays are used, what would be the dose in Gy, Sv, and rem, and how much energy would a 220 g portion of fish absorb? (See Table 43.3.) (b) Repeat part (a) if electrons of RBE 1.50 are used instead of x rays.
Plot absorption versus time using the graph label mAbs vs time(s) from 0 to 120 s in 10-s intervals. Plot a line that can be used to calculate the initial rate using the graph label Initial Rate.
E:09 66 js 66 It was suspected that a particular mixture contained three components: X, Y and Z. To check this, the mixture was analyzed by thin layer chromatography. In this experiment a nonpolar solvent was used with a polar stationary phase. The following results were obtained: setvent tront EV2 lengin tine before after Answer the following questions and then check your answers. Which suspected components (X, Y or Z) are present in the sample? 2 Are there other components in the sample? 3. What is the Rf value of the unidentified component? * Which of the suspected components is the most polar? the least polar? Zainab 4:58 PM is
Figure 3: ● ● ● ● ● ● KDa ● 97.4 66.2 45.0 ● 31.0- 21.5 14.4 S-1 p-1 S-2 2-0 This figure was generated by centrifuging a pura sample of protein, removing the supernatant, and resuspending the pellet in the same volume as the supernatant to allow direct comparison. The supernatant and pellet samples were then prepared for SDS-PAGE identically and run via normal SDS-PAGE procedures. In the figure, "s" means supernatant and "p" means pellet. The text or number after the dash represents a different condition. For example, s-1 and p-1 are the supernatant and pellet samples under condition 1. It is not shown, but under wild-type conditions, essentially all of the protein is found in the supernatant. S-3 ● What does the intensity of each band represent? ● Would you find soluble protein in the supernatant or pellet? Why? Would you find aggregated protein in the supernatant or pellet? Why? For each condition (there are 5 different conditions), is there a higher percentage of the total protein…
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A sample to be used for medical imaging is labeled with 18F,which has a half-life of 110 min. What percentage of the originalactivity in the sample remains after 300 min?