If 6 Gy of 250 kV x-rays kills 30% of tumor cells, and 4 Gy of a neutron beam kills the same percent of tumor cells, the RBE of the neutron beam is equal to 0.5 2.5 O4 1.5

Q: How much radiation doses (in rads) is deposited in the body if 8.5 J of energy from radiation is…

A: Given data: The energy absorbed is E=8.5 J. The mass of the person in m=85 kg.

Q: Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had…

A: Given,Initial mass of the substance, m = 100 mgafter 6 hour mass of the substance decreases by 3%

Q: A sample of radioactive material contains 1x 1014 atoms and has an activity of 6.3 x 1011 Bq. What…

A:

Q: How did you go from  MgH= 1/2MV^2+1/2(2/5Mr^2)(v/r)^2 to gH=v(1/2+2/10)?

A:

Q: The β-particles emitted in the decay of 3H (tritium) interact with matter to create light in a…

A: Given- Activity (A) = 15.0 Ci = 15.0 Ci×1 Bq2.73×10-11Ci=5.49×1011Bq Half life of Tritium (t1/2)=…

Q: Uranium-238 decays into lead-206. The Q value for the entire chain is 51.7 MeV and the decay…

A: In some nuclear decay, an alpha particle is released by the parent nucleus. This kind of decay is…

Q: The table shows two isotopes of potassium and two isotopes of calcium. 39K 42K Stable B-decay…

A: GivenMass of electron (me) = 0.000549 uMass of proton (me) = 0.000549 uMass of neutron (me) =…

Q: If a 1.90 cm thick piece of lead can absorb 90.0% of the γ rays from a radioactive source, how many…

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Q: A person with lymphoma receives a dose of 35 gray in the form of gamma radiation during a course of…

A: (i)   The energy absorbed by the cancerous tissue can be calculated as,

Q: A 6.0\times 10−2 kg tumor is treated with a high-energy proton beam. If the equivalent dose…

A: Approach to solving the question:Please see attached photos for the detailed solutions. Thank you.…

Q: The H isotope of hydrogen, which is called tritium (because it contains three nucleons), has a…

A: When there is an unbalance in the number of protons and neutrons inside an atomic nucleus they…

Q: A scientist working near an improperly shielded y-ray source would receive an equivalent dose of 4.0…

A: When the scientist works in an improperly shielded gamma source, he receives a dose of  X0=4.0 mSv…

Q: The radio-active decay reaction is given by e¯+e* →y+y . Calculate the wavelength of y photon…

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Q: The half-life of tritium is 12yr. If the TFTR fusion reactor contains 50 m³ of tritium at a 3…

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Q: Calculate the kinetic energy of alpha particle that comes from Th28990.

A: The following equation represents the radioactive decay of an α- particle H24e: PZA → DZ-2A-4 + H24e…

Q: The fusion reaction shown is part of the proton-proton chain that occurs in the core of the sun.

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Q: 90% of No radioactive atoms decay in one hour. What is the half-live? What is the decay constant…

A:

Q: 10. A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of…

A: The energy absorbed by the tissue is

Q: Consider the following nuclear reaction B → Be + 'e + v and determine the Q value or total energy…

A:

Q: A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of…

A:

Q: A. A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus…

A: As per guidelines for mutiple question, the first question (question A) has been answered.

Q: How many calendar years (= exactly 365 days) can a 5.75 W LED lamp light up with 0.853 kg deuterium…

A: Given The amount of deuterium m = 0.853 kg Energy from one deuterium E = 0.823 MeV Power of the LED…

Q: A person with lymphoma cancer receives a dose of 35 gray in the form of gamma radiation during a…

A:

Q: If you start at t = 0 a decay rate of r = 10,000 Cs -137 decays per second, how many decays per…

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Q: An energy of 30.0 eV is required to ionize a molecule of the gas inside a Geiger tube, thereby…

A: Energy required to ionize one molecule, E = 30.0 eVTotal energy, Et = 0.65 MeV = 0.65×106 eVMaximum…

Q: In a radioactive substance at t = 0, the number of atom is 8 x 104 . its half-life period is 3 yr.…

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Q: An 85 kg radiation worker accidently ingest 1.0 mg of Po211. Assume that Po211 resides in the body…

A: The decay constant for Po211 can be calculated as below, Here τ is the half-life of Po211.

Q: Used in carbon dating, the carbon isotope 1C is radioactive. It decays according to the equation c-N…

A: here given  a equation  we need to find element

Q: nuclear/ radioactive decay may be best expressed as Group of answer choices N = No e-1/λλt No = N…

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Q: A sample of hypothetical element X decays by positron emission and has a half-life of 79 years.  How…

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Q: During an experiment 30% of a tissue is damaged by 8Gy of 250keV energy X-ray. The same damage is…

A: Let the RBE of protons be (RBE)p then,8Gy×1 =3Gy×(RBE)p ⇒(RBE)p ⇒83 ⇒2.67

Q: 5. What is the energy released in this 3+ nuclear reaction Cl →S +e? (The atomic mass of Cl is…

A: The energy released in a nuclear reaction can be calculated using the mass-energy equivalence…

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.