Emittance Preservation in the Injectors

The emittance preservation of high brightness beams is crucial for obtaining the required future luminosities. A tight budget for the emittance degradation along the injector chain is thus necessary. The presentation will give an overview of 2017 emittance measurements with operational beams in the injector chain, and show possible emittance growth during the cycle and at the transfers. The measurements depend strongly on the performance and limitations of the instrumentation to measure the transverse emittance. The tools to calculate and monitor the emittance, various studies to reduce emittance growth, and cross- calibration studies between accelerators will be summarized, finally leading to prospects for 2018.