July 8, 2016

Sub-nm Emittance and Low Alpha CANDLE Storage Ring

Following the recent developments in low emittance lattice design, a new Sub-nm emittance lattice, based on implementation of multi-band achromat concept and application of longitudinal gradient bending magnets, was developed for the 3 GeV storage ring of CANDLE synchrotron light source project. The new design has a 0.8 nm beam horizontal emittance that by one order of magnitude is smaller than the original one (8.4 nm). The results of the study performed by “Beam Physics” Group (leader Dr. Artsrun Sargsyan) are presented in A. Sargsyan et al paper, “Sub-nm Emittance Lattice Design for CANDLE Storage Ring” accepted for publication in Nuclear Instruments and Methods in Physics Research – A, and is available at:



Along the recent study of CANDLE Ring Low Alpha operation mode for the generation of coherent THz radiation and short pulse synchrotron radiation, the new design corresponds to the state-of-the-art developments in the field. The beam dynamics study of CANDLE low alpha operation mode is published in Journal of Instrumentation, volume 10, T10002, pp. 1-7, October, 2015: http://iopscience.iop.org/article/10.1088/1748-0221/10/10/T10002