Activation of Neodymium

This area is for discussions involving any fusion related radiation metrology issues. Neutrons are the key signature of fusion, but other radiations are of interest to the amateur fusioneer as well.
Post Reply
Jon Rosenstiel
Posts: 1494
Joined: Thu Jun 28, 2001 1:30 am
Real name: Jon Rosenstiel
Location: Southern California

Activation of Neodymium

Post by Jon Rosenstiel »

Of neodymium’s seven naturally occurring isotopes only Nd-148, (5.76% of elemental Nd) produced detectable gammas, but produce it did… five gammas!

The activation reaction is….

Nd-148 n,g > 1.7 hour Nd-149 (~3 barns)

Activation time was 45 minutes at a fusor output of 3.5E+06 neutrons / second, TIER. (Three 15 minute activation runs separated by 30-minute fusor cool-down periods).

Photos:

1) Gamma spectra.
2) Neodymium metal chunk in it's mineral oil bath.

Jon Rosenstiel
Attachments
Neodymium.gif
Neodymium.jpg
Top
Post Reply

Return to “Neutrons, Radiation, and Detection (& FAQs)”