Date: Tue, 30 Mar 1999 13:11:19 -0700

Author: Steve Anderson

Subject: RE: looking for indium and silver

Post:

Reply to: RE: looking for indium and silver

Mary Ann Hickman wrote:
>Hey, y'all.
>
>Has anyone out there purchased indium samples? Specifically, I am looking
>for disks about 2 inches in diameter and about 0.005" thick. I'd also like
>to find similar disks of silver.


Mary Anne,

We also buy activation foils from Aesar, as cited by Wolfgang, for the 482 nuclear course.
For the undergrad activation lab, we use PbI2 (lead iodide). It is a yellow powder that has a half life of about 20 min. in an ampule. They can get five half-lives in an hour and half of counting, works pretty well. Also, it activates fast so I can recharge the samples over lunch for the afternoon lab.
I think the indium foils are about 40 min. half life.

steve anderson
sonoma state u

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