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Synchrotron radiation (also known as magneto
Syncradiation was named after its discovery in Schenectady, New York from a
On April 24, Langmuir and I were running the machine and as usual were trying to push the electron gun and its associated pulse transformer to the limit. Some intermittent sparking had occurred and we asked the technician to observe with a mirror around the protective concrete wall. He immediately signaled to turn off the synchrotron as "he saw an arc in the tube." The vacuum was still excellent, so Langmuir and I came to the end of the wall and observed. At first we thought it might be due to
Cherenkov radiation, but it soon became clearer that we were seeing Ivanenkoand Pomeranchukradiation.