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Title: Brain Sensor
Description: NIST's atom-based magnetic sensor, about the size of a sugar cube, can measure human brain activity. Inside the sensor head is a container of 100 billion rubidium atoms (not seen), packaged with micro-optics (a prism and a lens are visible in the center cutout). The light from a low-power infrared laser interacts with the atoms and is transmitted through the grey fiber-optic cable to register the magnetic field strength. The black and white wires are electrical connections.

*PML

See also http://www.nist.gov/pml/div688/brain-041912.cfm.
Subjects (names):
Topics/Categories:
Type: Photo/Color
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
Credit: Knappe/NIST
AV Number: 12PML013
Date Created: 2012
Date Entered: 4/19/2012

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