"Mae West Curve"

[UncaBuffalo]

Can someone tell me the real name of the thumb-rule that says fission products tend to be more common with atomic weights around 90 (Xenon, etc) and 130 (Iodine, Cesium, etc).

I have always thought it was called the "Mae West Curve", but am drawing a blank when I try to do a web search.

Thanks!

[Roll Tide]

The fission product yield varies with parent nuclide of concern. U-235 does have the characteristics you have stated. This may be useful, though I found parts of the site too general and others beyond the scope.

http://t2.lanl.gov/tour/sch007.html
http://t2.lanl.gov/publications/publications.html

[UncaBuffalo]

Thanks for the help!

 + Karma!

[kwicslvr]

I believe it is called the Fission Yield Curve for U-235

[astronuke]

When providing training for mixed gender groups, I used the more politically correct term for the curve: the two humped camel curve. 

[moke]

As you now know the two Fission Product yield from thermal fission of U-235 are that of Krypton-90 and Iodine 137 that represent the nipples indicating the highest yeild during the fission process.

Kr-90 decays to the nasty 2.2 MEV Sr/Y-90 component and the Iodine includes the 662 Kev peak representing Cs-137.

May West reminds some of San Onofre Two and Three! Still standing tall and firm!

Moke

[DrNucleus]

Yeah, now how many of us (besides this old fart) remember Mae West? She said, 'I used to be Snow White but then I drifted."

Guess we can call it the Dolly Parton or Pam Anderson curve now. Maybe not here in CA where everything is politically correct.

Be well and choose to be happy,
Ellsworth Weaver