Preparation of the EBS beam commissioning

Abstract

In 2020 the ESRF storage ring will be upgraded to a Hybrid Multi Bend Achromat (HMBA) lattice. The commissioning of the new ring will require dedicated tools, either updated from the existing ones or newly developed. Most of the software and procedures were tested on the existing storage ring before its decommissioning. In particular we present experiments on first-turn steering and beam accumulation, check of magnet polarity and calibration, and injection tuning. The use of a control-system simulator proved to be crucial for the debugging of the software and the development of the new control system, as far as beam measurements and manipulations are concerned.

Lifetime correction using fast-off-energy response matrix measurements

“…Simulations of the NOECO correction were done in AT using lattices with realistic errors and corrections based on a commissioning-like simulation loop [5]. For most of the seeds considered the computed lifetime improved after NOECO correction, as shown in figure 1.…”

Mapping of Structural Changes Induced by X-ray Nanopatterning via Nano-X-ray Diffraction and Corresponding Electrical Effects

“…Indeed, it has been observed many times that synchrotron radiation is able to trigger phenomena such as photoreduction, 3 photodissociation, 4 phase transition 5 or crystallization, 6,7 which can radically change structure and properties of the irradiated materials. In this respect, the entry into service of the fourth-generation synchrotron radiation sources 8 is expected to push the energy density at even higher limits where new states of matter should become accessible, making these phenomena more and more important and opening new possibilities for their exploitation.…”