Atomic Energy Lab (ca. 1960)
This Atomic Energy Lab is one of a series of similar science kits produced
by the American Basic Science Club. The assigned date, ca. 1960, is
based on the fact that the kit's booklet has a copyright date of 1959.
It features three experimental setups (a spinthariscope, a cloud chamber, and an electroscope) and two radioactive sources (uranium ore and radium).
All of the equipment has to be assembled, none of it is ready to go right out of the box. That's what I like about this kit: it doesn't present the experiments on a silver platter, they are mini construction projects.
|The spinthariscope is
assembled by coupling an optical lens to an alpha source. The latter
consists of a pin stuck into a cork - the surface of the cork
is coated with zinc sulfide (ZnS) and the exposed tip of the pin has
radium on it. When the zinc sulfide is viewed through the lens in the
dark, tiny flashes of light can be seen as the alpha particles from the
radium strike the ZnS crystals.
The cloud chamber is fashioned from a clear plastic container (lower right corner of photo). The bottom of the chamber is formed from a disk of black paper that is kept cold with a block of dry ice. The pin with the radium on it is introduced into the cloud chamber through a small hole in the top of the plastic container. A few drops of alcohol are added to produce the vapor. A light bulb inside a metal box with a condensing lens on the side serves as the source of illumination.
The electroscope is fashioned from the same metal box used to construct the light source for the cloud chamber. Aluminum foil is used to make the electroscope leaf, and the leaf is viewed with the same lens employed in the spinthariscope.
Copyright 1999, Oak Ridge Associated Universities