In 1910, British physicist observed a release of positive ions and neutral atoms from a solid surface induced by ion bombardment. Improved technology in the 1940s enabled the first prototype experiments on SIMS by Herzog and Viehböck in 1949, at the, Austria. In the mid-1950s, Honig constructed a SIMS instrument at in. Then in the early 1960s, two SIMS instruments were developed independently. One was an American proje.
Photomultiplier tubes (photomultipliers or PMTs for short) are extremely sensitive detectors of light in the,, and ranges of the. They are members of the class of, more specifically vacuum. These detectors multiply the current produced by incident light by as much as 100 million times or 10 (i.e., 160 ), in multiple stages, enabling (for.
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