Measuring Emittance Growth Due to Magnetic Bunching of an Electron Beam Using the Second Moment of Its Image Charge
نویسندگان
چکیده
Current thinking about the Next Linear Collider (NLC) places a great deal of importance on magnetic beam compression. However, theoretical work has predicted that a large emittance growth may occur during magnetic compression due to coherent synchrotron radiation and the non-inertial space-charge force[1]. Applications such as the NLC cannot tolerate such beam degradation. To verify this prediction we have measured the emittance of the Sub-Picosecond Accelerator electron beam as a function of compression in our magnetic chicane and compared the results to numerical simulation. These emittance measurements were carried out using a pair of quadrupole magnets and a beam position monitor.
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