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The synchrotron - a pulsed light source |
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Pulse width typically 60 ps Pulse separation typically 2 ns in multi-bunch
operation (500 MHz pulse repetition rate)
Experimental observation of the pulsed time
structure VUV fluorescence. Each spike on
the above graph represents a light pulse being detected in the
experiment. This light pulse is
emitted by atoms which were excited by the arrival of a light pulse from the
synchrotron. The absence of light pulses
in the 65 to 125 ns period arises from a gap in the electron bunch filling
structure of multi-bunch operation of the synchrotron which we refer to as
the “dark gap”. (Harries, Azuma, Hammond, Sullivan:
measured at the Photon Factory, Japan 2003) Peter
Hammond 2004 |
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