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Brookhaven National Laboratory F5

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Brookhaven National Laboratory F5

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Image title: 
A unidentified physicist at Brookhaven National Laboratory checks electronic equipment
Credit line: 
Photo courtesy Brookhaven National Laboratory. For Publication Permission Request contact Jane Koropsak, BNL-Media and Communications, jane@bnl.gov, Tel: 631-344-4909
Description: 

As radioactive atoms decay varying amounts of energy are given off, often in the form of radiation, such as gamma rays. By measuring the amount of radiation at intervals, physicists can improve the understanding of the systematics of the release of energy in the nucleus, or heart, of an atom of a given element. In this photo, a unidentified physicist at Brookhaven National Laboratory, Upton, New York, checks electronic equipment which will record the gamma ray energy given off by a sample of radioactive tellurium 123 inside the black cylinder on the table at right. One index of the energy is the white 'wedge' which appears on the television-like screen, or oscilloscope. The taller the 'wedge', the greater the energy of the gamma rays. The rays send light specks out from a crystal in the top of the black cylinder, where photoelectric tubes pick up the specks and amplify the signal for recording in nearby equipment.

Original format: 
1 photographic print (black and white; 10 x 8 inches)
Person(s): 
Brookhaven National Laboratory