Difference between revisions of "Spectra of neutrons and gamma-rays from Cf-252 source"

From New IAC Wiki
Jump to navigation Jump to search
 
Line 21: Line 21:
  
 
[[Image:gamma_spectrum_lead_container2.png]]
 
[[Image:gamma_spectrum_lead_container2.png]]
 
 
== Fission of U-238 ==
 
 
 
Mass distribution of fission fragments from fission of U-238 (by 15 MeV neutrons):
 
 
The thickness of the U-238 target was 1.0 nm
 
 
[[Image:Mass_distribution_u_238.jpg]]
 

Latest revision as of 16:56, 15 July 2007

simulation

1. It was used data contained in documentation [1] to simulate neutron and gamma spectra of Cf-252 source.

According to the documentation the activity of Cf-252 relatively to emission of gamma-rays and neutrons is A(n) = 0.177 A(gamma)

The total number of verteces generated were 100,000 (i.e. A(n)+A(gamma) = 100,000).

New gamma sp2.jpg

New neutron sp2.jpg

Total sp.jpg

Maybe this picture is more appropriate:

Combined spectrum.png

Now let's throw that spectrum on 1.11 cm plate of lead (the thickness is like the thickness of lead container for Cf-252 source):

Gamma spectrum lead container2.png