Does the amount of radiation (cpm) increase or decrease as the thickness of the shielding increases (while the distance between the source and the sensor stays the same)? Explain

Q: A. 1.5 R/hr 48. Calculate the exposure rate at 3.0 cm from a I source with an activity of 2.0 mCi.…

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Q: If the intensity of radiation is 255 microcuries (μCi) at a distance of 1.74 m, what is the…

A: The intensity of radiation (I) and distance (d) are inversely related according to inverse square…

Q: If an operator 14  m from a small source is exposed to 3.0 units of radiation, what will be the…

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Q: The dosage of technetium-99m for a lung scan is 20. uCi /kg of body mass. How many millicuries of…

A: Given:  Dosage = 20 µCi/kg  Weight of person = 53 kg    To find: Number of millicuries

Q: Suppose one food irradiation plant uses a 137Cs source while another uses an equal activity of 60Co…

A: In food irradiation, food is treated with ionising radiations (like gamma rays, X-rays, electrons)…

Q: If the intensity of radiation from a radioactive sources is 7.5 units at a distance of 6.9 m, how…

A: Given: Intensity at 6.9 m distance = 7.5 units. And the intensity is 0.38 units finally at a…

Q: A radioisotope produces an intensity of 8.75 x 10" becquerel (Bq) at a distance of 2.00 cm from the…

A: Given : Intensity at r1= 2cm , I1 =8.75x104 Bq Intensity at r2 = 36cm, I2 = ?

Q: For samples 1, 2 and 3: A. determine the D/P ratio in the table below (calculate each value to 1…

A: As per rule, only the first question can be answered. Decay constant (λ) = 5.543 x 10-10 year-1 1…

Q: From the daughter's recoiled energy, E_n, determine if this energy is enough to break the chemical…

A: This is a multipart question. According to guidelines in multipart question we can solve only…

Q: infared radiation because it has a much lower frequency. 2. A blue shirt appears blue because the…

A: Since, you have posted a question with multiple subparts, we will solve the first three sub-parts…

Q: Be sure to answer all parts. A³H nucleus decays with an energy of 0.01856 MeV. Convert this energy…

A: Here we are required to find convert the energy for 3H decay from mega electron volume to electron…

Q: This exercise uses the radioactive decay model. The half-life of radium-226 is 1600 years. Suppose…

A: we are here given that the half life th of radium =1600 yearssample weight/initial value of radium…

Q: It has been reported that the radiation dose measured in the city of Pripyat in 2010 was 6 mSv/hour…

A: Given : Radiation rate in city = 6 mSv/hour And duration given = 1 year

Q: a - particles from a polonium source strike a thin gold foil of thickness 4 x 10-7 m. Most of the…

A: Thickness of foil (L) = 4 x 10-7 m Fraction of alpha particles scattered by more than 90 degree =…

Q: Find whether 6429 Cu is stable or not. If not, find the decay mode. Given: M(0“Cu) = 63.929766 amu…

A: Isotopes of an element have same atomic number but different mass number. Radioactive isotopes are…

Q: In the photoelectric effect, a certain metal on an emitter has a binding energy of 275 kJ/mol. What…

A: The binding energy of an electron in the metal can be calculated as

Q: A radioisotope produces an intensity of 8.75 x 10* becquerel (Bq) at a distance of 2.00 cm from the…

A: With the increase in distance the intensity decreases.

Q: What is the density of the 2Mg nucleus in g/mL, assuming that it has the typical nuclear diameter of…

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Q: The half-life of radium-226 is 1600 years. Suppose we have a 27-mg sample. (a) Find a function…

A: As this is multiple question , first three part is solved here. Please re-post last one as an…

Q: Gamma Particles Number of Barriers 0 1 2 3 Activity (counts in 10 s) Cardboard Plastic Lead 252 250…

A: All the necessary calculations have been done in the following step.

Q: The distance between a person and a radiation source is 4 feet. If the person moves to a position 12…

A: Second option. b) 1/144

Q: Calculate the energy of a positron beam colliding with electrons at rest, at which it is most…

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Q: The radiation given off by a radioactive source can be measured with__ a spectrophotometer another…

A: Answer

Q: Does a RAD measure accuracy or precision?

A: The Relative Average Deviation of a data set is a percentage that tells you how much, on average,…

Q: In an alpha particle (42He) scattering experiment, using a thin gold (19779Au) foil, the initial…

A: Given,  kinetic energy = 2.0MeV

Q: What electronic process is the basis for detecting radioac-tivity in (a) a scintillation counter;…

A: A Geiger counter is a tool for radiation detection and measurement. It has applications in areas…

Q: 1-Describe the process of delayed nucleon emission. 2- Explain the 'transient and steady'…

A: When an isotope decay into a short-lived isotope and then agaim decay to give a long-lived isotope…

Q: The radioisotope 41Ar decays by β-(negative beta) emission to an excited level of 41K that is 1.293…

A: Beta decay results in isobars and in beta minus decay neutron is converted into a proton, electron…

Q: A 15.0-mCi (millicurie) radioative source runs for 2.63 hours. How many atoms have disintegrated?

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Q: Compare the application of traditional stable isotope analysis with stable isotope probing

A: Isotope analysis is the identification of isotopic signature, the abundance of certain stable…

Q: What is the ratio of weights of populations due to the effects of nuclear statistics for 35Cl2?

A: The ratio of weights of populations due to the effects of nuclear statistics for 35Cl2 has to be…

Q: A positron is absorbed by a nucleus of tritium to form a He* ion. If the electron in the tritium is…

A: step 1) z is the nuclear charge of the number of protons which is 1 for the tritium and for the…

Q: Carbon dating can be used to get a measurement of the age of a carbon-containing sample. (Scientists…

A: The number of radioactive particle v/s time data given is,

Q: Which of the following statements concerning radiation absorption by living tissue is/are CORRECT?…

A: Radiation can change the nature of living cell. Biological effect of radiation depends on type of…

Q: What are the merits and limitations of precipitation methods? Give an example where the…

A: Those points which shows that a particular method is useful or help the mankind in any way are known…

Q: What were Antoine Henri Becquerel's contributions to nuclear chemistry? Why were they so important?…

A: What were Antoine Henri Becquerel's contributions to nuclear chemistry? Why were they so important.…

Q: Explain nuclear fission and the functions of rod in nuclear power plants.

A: When a nucleus of an atom is undergoing some change, its study is called nuclear chemistry. Nuclear…

Q: (c): Find whether 29 Cu is stable or not. If not, find the decay mode. Given: M(*Cu) = 63.929766 amu…

A: Mass number = 64 Atomic number = 29 Number of neutrons = 64-29  = 35 Number of neutrons is not equal…

Q: 131| is a B-emitter (half-life = 8.040 days) used in medicine for the diagnosis and treatment of…

A: Half life=8.040 Starting amount of sample =2.05

Q: Fluorine-18 used in PET scans has a half-life of 110 min. If a 100.0 mg sample of the radioisotope…

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Q: what is the product formed from 232Th by a-particle emission? a) 228Th b)232Ac c)232Ra d)228Ra…

A: In a emmision of alpha decay mass number change by four unit and atomic number change by two unit in…

Q: the radiation intensity emanating from a source is 60 mrad/h. Lead sheets that provied 1 HVL are…

A: HVL is determined as the thickness due to which the intensity of radiation becomes half. Value of…

Q: radiation

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Q: 6. Which among the following is best for shielding against gamma radiation? * A. aluminum B.…

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Q: If the intensity of radiation is 286 microcuries (µCi) at a distance of 1.70 m, what is the…

A: Inverse square law gives the relation between intensity of radiation and distance. It can be…

Q: What are the merits and limitations of precipitation methods? Give an example where the…

A: Precipitation titration is a type of titration in which a precipitate is formed during the titration…

Q: Nuclear Chemistry Tutorials 7 of 9 Measuring Radiation I Review I Constants I Periodic Table The…

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Q: For the transmutation X + He → 2C+n, which value is X? - o 13c o Be o lo o 170

A: