Calculate the activity of these samples at the given times: 3.06 mCi l-131 (t₁/2 = 8.04 days) at 2.00 days after calibration 5.00 mCi Tc-99m (t1/2 = 6.02 hours) at 48.0 hrs after calibration 10 mCi Tc-99m (λ = 0.1155/hr) at 4.0 hours after calibration
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Q: A vial contains 2000 MBq of Technetium-99m on the 18th June 2014 at 06:00. How much will it contain…
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Q: Calculate the activity of a pure 9.5-μgμg sample of 32 over 15P (T1/2=1.23×106s).
A: Mass of sample (m) = 9.5 ×10-6 grams Molecular mass of P-32 = 32 grams Half life (T1/2) = 1.23×106…
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Q: Bismuth-210 has a half-life of 5.01 days. The activity of a bismuth-210 sample at the start is 100…
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Q: How do I convert 500 counts per second into beccquerels? and beccquerels per cm^2 if the…
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Q: a sample with a half-life of 19 days has an initial activity of 7.0 x 10^5 counts/s. what isits…
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Q: 12. A point source of 5-MeV y-rays with intensity 3 x 103 y-rays/cm2- sec is shielded with 50 cm of…
A: Given: The energy of the Gamma-rays is E = 5 MeV The intensity of the point source is I0 = 3 x 103…
Q: A sample of 134La(T/2 = 6.5 min) has an activity of 4 curies. What was its activity one hour ago?
A: Final Activity A = 4 curies Half life T1/2 = 6.5 min time t = 1 hour = 60 min
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Q: RT(2) = V₁(V) = V2(V) = V3(V) = PE(MW) = Is E 20V Is(mA) = 11(mA) = 12(mA) = 13(mA) = --- R₁(1k0) {…
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Q: A radiographic technique calls for 46 kVp and 28 mAs which results in an exposure of 278 µGy. What…
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Q: Q6:- What is the range of a beta particle with IMEV energy in aluminum if its density is 2.698…
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Q: Calculate the fraction per square mm area of 7.7MeV alpha particle scattered at 45degrees from a…
A: Solution attached in the photo.......
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Q: A 228Th source is labeled 1.50 mCi, but its present activity is found to be 3.47 ✕ 106 Bq. (a)What…
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- A radioisotope produces an intensity of 7.52 x 10^4 becquerel (Bq) at a distance of 1.00 cm from the source. What would be the intensity at 12.0 cm? Intensity = ______BqThe HVL for Pb for a particular energy x-ray is 0.1mm. By how much will an x-ray beam be reduced, if a lead sheet 1.5mm thick is placed in its path?I need the answer as soon as possible
- Q12. Consider two gamma radioactive sources: S1 has activity 50 µCi (micro-Curie) and S2 has activity 25 µCi (micro-Curie). They are separated by 1 m. Assume that both sources are pointlike. s1 S2 1 m a) At which location along the dashed line passing by the two sources is the flux due to S1 equal to the flux due to S2 ? b) What is the gamma fluence in that location in a time interval of two minutes ?A technique of 40 mAs , 200 kV, 200 cm SID produces 0.12 Gy exposure. If we change the technique to: 80mAs, 175 kV at 100 cm SID find the new exposure in rad?
- Please asapThe point source Co-60 emits gamma with energies of 1.17 MeV and 1.33 MeV. Each of these energies emits the same number of photon particles. At a certain location, the flux that is read is 5.7 x 109 photons/cm2.s, what is the intensity or energy flux with units of J/m^2.min55 MeV a-particles are incident nomally upon a target of gold foil 1.0 µm thick. A fraction 1 in 108 per second was scattered through an angle of 60° and detected by a scintillation detector of area 25 mm? at a distance of 50 mm. Calculate: i) The number of the nuclei per unit volume in the target ii) The size of the solid angle d2 (with its proper unit) subtended by the detector. iii) The atomic number of the gold (gold has atomic mass 197 u and density 1.93x10ʻkg/m³)
- A 0.025 nm X-ray source deposits 30 million photons into 10 grams of tissue. What is the absorbed dose in the tissue (in Gy)? What is the dose equivalent (in Sv)?Q.4. (b) The linear absorption coefficient of lead for 1.0 MeV gamma rays is 74 m¹. Calculate the half value Thickness and Thickness of lead to reduce the GO intensity of gamma rays to of its original value. 100 (log 2 = 0.693 and log 10 = 2.30) -|In a controlled fusion reactor Deuterium-Tritium The temperature of the plasma is T = 10 keV, where k is the k Boltzmann constant. The ions' number density is 2.6×10¹8 m-3. -22 3 Moreover (ov) = 10-²²m³s-¹, where o is the reaction cross-section, v is the relative speed of the reacting particles, and represents averaging according to the Maxwell- Boltzmann distribution. fusion is occurring. For what value of the confinement time does the reactor achieve the break even point? Enter your answer in seconds to 1 decimal point.