[Jlabsa_gs] **Today** Pizza Seminar - Wednesday, April 16, 2014 - A Message From Hari Areti
Jodi Patient
patient at jlab.org
Wed Apr 16 08:18:38 EDT 2014
Thank you to all of those who RSVP'd. See you at noon today.
Jefferson Lab's Graduate Student and Post-Doc Association Wiki:
https://gspda.jlab.org/wiki/index.php/Main_Page
Please RSVP to: patient at jlab.org by COB on April 14, 2014
Wednesday, April 16, 2014
***F113***
12:00-1:00 pm
"Measurement of 16O(γ,α)12C with bubble chamber and bremsstrahlung
beam at Jefferson Lab Injector"
Riad Suleiman
Jefferson Lab
Abstract: The carbon-helium fusion reaction is considered to be the
key reaction in the helium burning of stars because it determines not
only the carbon and oxygen abundances in stars and, ultimately, in the
universe, but also the nucleosynthesis of all heavier elements.
At Jefferson Lab, we plan to obtain the rate for this reaction by
measuring the inverse process, i.e., the photo-disintegration of oxygen
into helium and carbon. This measurement would be based on a novel
bubble-chamber technique, which makes use of the fact that a super-heated
liquid (Nitrous Oxide) is sensitive to recoiling helium and carbon nuclei
produced by photo-disintegration of the oxygen nuclei in the liquid.
In this talk, I will present a description of the Bubble Chamber and the
experimental setup at Jefferson Lab Injector, and show how we can use a
Bremsstrahlung beam to measure photo-nuclear cross sections.
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