Gamma spectrum. The measured gamma spectrum from a certain radionuclide shows a peak at 511 keV,...

Gamma spectrum. The measured gamma spectrum from a certain radionuclide shows a peak at 511 keV, however this radionuclide is not known to emit such a gamma ray. Give two plausible explanations for the origin of this peak in the spectrum.

Expert Solution

genius_generous answered 2 years ago

The scattered gamma rays from a source of 1332 keV have a distribution of energies as...

The scattered gamma rays from a source of 1332 keV have a distribution of energies as a function of the scattering angle q as follow: Eg0- is the initial gamma energy, Eg’ is the energy of the scattered gammaand, q is the scattering angle. Do your calculation and choose the correct answer for the following: The maximum energy of the scattered gamma, Egmax The maximum energy of the scattered electron, Ee-max at what angle, q, you should stand to get...

2. A 662 keV gamma ray from 137Cs decay is Compton scattered at an angle θ....

2. A 662 keV gamma ray from 137Cs decay is Compton scattered at an angle θ. (a) What is the energy of the resulting gamma ray after scattering at 90◦? (b) What is the energy of the resulting gamma ray after scattering at 180◦? (c) What is the maximum amount of energy that the gamma ray can deposit in a single Compton scatter?

Peak intensity from a mass spectrum gives you what information about a compound? -The relative abundance...

Peak intensity from a mass spectrum gives you what information about a compound? -The relative abundance of each ion proportional to the most intense (base) peak -The mass of each fragment -The total number of atoms present in each fragment -The number of different isotopic forms present -None of the answers shown are correct When speaking of a chemical reaction, what is a transition state? -It is the lowest energy form of a product from an exothermic reaction -It is...

Experience shows that the size of the resistors originating from a certain production is a normally...

Experience shows that the size of the resistors originating from a certain production is a normally distributed random variable with the parameters μ = 990Ω and σ = 20Ω. All resistances, which are not within the tolerance limits of 950Ω to 1050Ω are to be regarded as rejects. a) What percentage of resistances produced are rejects? b) By changing the technology it was possible to increase the mean value to 1000Ω. Which benefit arises? c) For installation in precision equipment,...

The table below shows the results from a test for marijuana use, provided by a certain...

The table below shows the results from a test for marijuana use, provided by a certain drug testing company. Actually Used Marijuana No Yes Positive Test Result 32 103 Negative Test Result 156 6 How many subjects had false positive results? How many subjects had false negative results? What is the probability that a randomly selected person actually did not use marijuana? What is the probability that a randomly selected person actually used marijuana give they had a positive test...

The table below shows the results of a survey that asked 1027 adults from a certain...

The table below shows the results of a survey that asked 1027 adults from a certain country if they favored or opposed a tax to fund education. A person is selected at random. Complete parts (a) through (c). Support Oppose Unsure Total Males 155 317 99 481 Females 229 291 26 546 Total 384 608 35 1027 1. Find the probability that the person opposed the tax or is female. 2. Find the probability that the person supports the tax...

A random sample from a company’s very extensive files shows that orders for a certain piece...

A random sample from a company’s very extensive files shows that orders for a certain piece of machinery were filled in 12, 10, 17, 14, 13, 18, 11, and 9 days. At the α=0.05 level of significance, can we reject the claim that on the average such orders are filled in more than 10 days?

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