Spin-polarized electron gun, 1970s

Numéro d’image : 12971150
Spin-polarized electron gun, 1970s
Spin-polarized electron gun, 1970s. This is an example of the pioneering equipment used in the 1970s to probe the surface and structure of materials. It was built at the Physical Measurement Laboratory (PML) of the National Institute of Standards and Technology (NIST). This is the first spin-polarized electron gun, used to study surface magnetism. The gun generated a high-intensity unidirectional (polarised) beam of electrons to probe spin-dependent magnetic interactions at the surface of a material. The tennis ball attached to one end of the spin polarized gun is a safety feature to prevent researchers hitting their heads on the machine. Photographed in 2019, on display at NIST's Advanced Measurement Laboratory (AML), Gaithersburg, Maryland, USA.
Licence : Droits gérés
Crédit: Science Photo Library / NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY
Taille de l’image : 5184 px × 3456 px
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Property Release : Non requis
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