radiation hazard sign
Date1950-1980
Inventory Number2003-1-0284b
ClassificationSign
Subject
Maker
Harvard Cyclotron Laboratory
1937 - 2002
Cultural Region
Place of Origin
Dimensions27.9 x 21.6 x 0.1 cm (11 x 8 1/2 x 1/16 in.)
Material
DescriptionThis radiation hazard sign is made of cardboard and has the radiation warning symbol (or trefoil) in red against a yellow background. It reads, "CAUTION / RADIATION AREA," above and below the trefoil. In the upper left corner, it is marked, "mr/hr / date." This refers to dosage of radiation in terms of millirem per hour.
In Collection(s)
Signedunsigned
InscribedCAUTION / RADIATION AREA
mr/hr / date
Historical AttributesThis sign hung in the outer vault area of the Harvard Cyclotron Laboratory, where it warned of the radiation from the accelerator in operation and from stored radioactive material. It may have been installed as early as the 1960s. It was removed when the HCL was decommissioned in 2002.
Harvard Cyclotron Laboratory
Date: 1947-2002
Object number: 2003-1-0291
General Electric Company
Date: circa 1956
Accessories: envelope containing instruction book and a mimeograph of a letter suggesting corrections
Object number: 2004-1-0383
General Electric Company
Date: circa 1980
Accessories: with Example Problems Pamphlet (1998-1-1371b)
Object number: 1998-1-1371a
Harvard Cyclotron Laboratory
Date: circa 1947
Object number: 2003-1-0303
Electro-Acoustic Laboratory, Harvard University
Date: mid 20th Century
Object number: 1998-1-1694a
Electro-Acoustic Laboratory, Harvard University
Date: mid 20th Century
Object number: 1998-1-1694b
Kenneth Joseph Launie
Date: 2018
Accessories: geiger counter probe; fake white bird used in B.F. Skinner exhibit
Object number: 0002-3-2018