'206 pb' presentation slideshows

98 th session of the JINR Scientific Council

588 views • 47 slides

98 th session of the JINR Scientific Council

478 views • 47 slides

Ge 11a, 2014, Lecture 3 Radioactivity and quantitative geochronology

Ge 11a, 2014, Lecture 3 Radioactivity and quantitative geochronology. Radioactive decay. Antoine Henri Becquerel Discovered spontaneous radioactivity. Marie Sk?odowska -Curie Explored spontaneous radioactivity Shockingly dangerous chemical separations

453 views • 32 slides

U-Pb

U-Pb. The Decay. 238 U ? 206 Pb ? = 1.551 x 10 -10 a -1 therefore t 1/2 = 4.47 Ga ? & ? decays 235 U ? 207 Pb ? = 9.849 x 10 -10 a -1 therefore t 1/2 = 707 Ma ? & ? decays 238 U much more abundant than 235 U (137.88x). ln2/ ?. ln2/ ?. What controls the rate?.

521 views • 31 slides

Polonium-210: An Interesting Nucleus

516 views • 29 slides

210 Po: An Interesting Nucleus

413 views • 28 slides

Using Heavy Isotopes in Marine Barite to Characterize Ocean Chemistry Changes

Using Heavy Isotopes in Marine Barite to Characterize Ocean Chemistry Changes. Andrea M. Erhardt Stanford University University of California - Santa Cruz USAC Meeting Washington, DC July 14, 2009. Overview . What is Marine Barite? Why is it a useful proxy?

340 views • 27 slides

The Nuclear Level Densities in Closed Shell 205-208 Pb Nuclei

The Nuclear Level Densities in Closed Shell 205-208 Pb Nuclei. Syed Naeem Ul Hasan. Introduction :. Nuclear level density: Bethe Fermi gas model in 1936. For many years, measurements of NLD have been interpreted in the framework of an infinite Fermi-gas model.

445 views • 26 slides

210 Po: An Interesting Nucleus

334 views • 25 slides

210 Po: An Interesting Nucleus

292 views • 19 slides

Overview

Nuclear reactions with exotic nuclei: role of the continuum Krzysztof Rusek Heavy Ion Laboratory of the University of Warsaw, Poland. Overview.

194 views • 19 slides

More Nuclear Chemistry

More Nuclear Chemistry. Abundance Binding Energy Fission Isotopic Signatures. Nuclear Binding Energy Two Ways. Nuclear Rxn Energy from BE. Molar BE and Element Abundance (Group Work Problem 1). + 8. + 6. 0 e-. 4. -1. He. 2. 238. 206. U. Pb. 92. 82. 238 U - 206 Pb Dating.

365 views • 18 slides

234 views • 17 slides

Analysis of the 206 Pb(n, g ) cross section

Analysis of the 206 Pb(n, g ) cross section. M1. E2. +10%. -10%. Angular distribution effects in the capture yield. 3/2 -. Analysis of the 206 Pb(n, g ) cross section. M1. E2. +10%. -10%. Angular distribution effects in the capture yield. 3/2 -. s (MACS) = 3-4%.

245 views • 13 slides

Spokesperson

Search for diabolic pair transfer at higher angular momentum states by using heavy-ion induced reaction. Spokesperson. Dr. Samit Kr. Mandal Department of Physics & Astrophysics Delhi University. H. J. Wollersheim GSI.

320 views • 13 slides

U-Pb Concordia/Discordia Dating Techniques

U-Pb Concordia/Discordia Dating Techniques. Decay of 238 U to 206 Pb and 235 U to 207 Pb System behavior = exponential decay If/then/else logical statements introduced to remove Pb or U at specified time Start with simple 2 and 3 isotope decay series to learn about secular equilibrium.

124 views • 6 slides