B Reactor Health Physics Exhibit: What is Your Size?

The What is Your Size panel in the Health Physics Exhibit. See exhibit panel for specific image credits.

**Main Text **

Text at the top right reads: “By looking at the coveralls to your right, can you figure out which are your size? If you would like a hint, just look at the chart on the bottom right.”

Text at the top left reads: “This color-coded sizing system helped standardize and speed up the donning (‘dressing’) process. Workers selected the correct size by looking at the pocket color. Developed by the health physicists for convenience, this system also ensured that workers had properly fitting clothing for maximum protection.

“While a useful tool, the bright colors were also a temptation for those who like to play pranks. The colored pockets were on the back of the coveralls. Pranksters would sneak up behind an unsuspecting co-worker and rip the pockets off. They had to find their fun where they could.”

Exhibit Panel Description

The chart titled, “Do They Have It In My Size?” lists the size with the associated pocket color of the coveralls. From extra-small to extra-, extra-large, the colors are: yellow, green, red, orange, dark brown, and white.

Two black-and-white photographs at the bottom left show workers in their white coveralls. Text reads: “The colors of the pockets were bright enough to be seen even from a distance. Employees selected coveralls by the pocket color when they donned their gear for the day.”

There is a QR code in the bottom left corner with text reading: “Scan this QR code to watch a short video clip about one employee’s experience with the pocket prank.”

**Visit This Exhibit Panel **

In-person visitation of the B Reactor is only authorized on guided tours offered by the Department of Energy.

Where this belongs

• Manhattan Project National Historical Park

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