Fusion Message Board

In this space, visitors are invited to post any comments, questions, or skeptical observations about Philo T. Farnsworth's contributions to the field of Nuclear Fusion research.

Subject: Not very active
Date: Mar 30, 12:08 pm
Poster: Scott Little

On Mar 30, 12:08 pm, Scott Little wrote:

I have completed a quick survey of my now-dormant fusor chamber with a 2" NaI detector looking for signs of neutron activation of elements in the stainless steel housing.

To my surprise, there is no configuration of counter+chamber that does not count a little LESS than the counter by itself!! Obviously, what's happening is that the chamber is serving as a shield for the counter against background radiation. The greatest reduction (~18%) occurs when the chamber is place between the counter and the concrete floor. The smallest reduction (~7%) occurs when the chamber is placed directly above of the counter.

Obviously, my chamber is not very active...