he isotope 81Thallium204 has a half-life of 3.78 years and can be used as a nanotechnology...

50.1K

Verified Solution

Question

Physics

he isotope 81Thallium204 has a half-life of 3.78 years and canbe used as a nanotechnology MEMS (Micro Electric Mechanical System)power source device. It decays through beta emission into 82Pb204with a branching ratio of 97.1 percent with an average decay energyof 0.764 MeV. It also decays through electron capture to 80Hg204with a branching ratio of 2.9 percent with a decay energy of 0.347MeV.
Calculate the energy release per decay event in[MeV/disintegration]
Calculate its total specific activity in [Becquerels / gm].
Calculate its total specific activity in [Curies / gm].
Calculate the specific power generation in [Watts(th) / gm].
For a 100 Watts of thermal power in a Radioisotope Heating Unit(RHU) power generator, how many grams of 81Thallium204 areneeded?
After 3.78 years of operation, what would its power become?
Use: 1 MeV/sec=1.602x10-13 Watts, Av=0.602x1024 [nuclei/mole], 1Curie=3.7x1010 Bq.

Answer & Explanation Solved by verified expert

4.3 Ratings (746 Votes)

1 Energy release per decay event 09710764 0029 0347 MeV 0752 MeV2 Specific activity dNdt per 1 gram N per 1 gramnumber of atoms N in 1 gm Thallium Avagadro See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member