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@InProceedings{podobedov:napac2019-tuplm25,
author = {B. Podobedov and M. Blaskiewicz},
title = {{Connecting Gas-Scattering Lifetime and Ion Instabilities}},
booktitle = {Proc. NAPAC'19},
pages = {430--433},
paper = {TUPLM25},
language = {english},
keywords = {scattering, experiment, electron, storage-ring, vacuum},
venue = {Lansing, MI, USA},
series = {North American Particle Accelerator Conference},
number = {4},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2019},
issn = {2673-7000},
isbn = {978-3-95450-223-3},
doi = {10.18429/JACoW-NAPAC2019-TUPLM25},
url = {http://jacow.org/napac2019/papers/tuplm25.pdf},
note = {https://doi.org/10.18429/JACoW-NAPAC2019-TUPLM25},
abstract = {Recently there is a renewed interest in fast ion instability (FII) which is of concern for future low-emittance electron storage rings, such as MBA light sources and colliders, i.e. eRHIC. While analytical theories and numerical codes exist to model the effect, due to various assumptions and limitations, accurate experimental verification is often desirable. Unfortunately, one of the most critical parameters for FII (as well as the classical "trapped-ion" instability), the residual ion concentration, is usually the most uncertain. Vacuum gauges and residual gas analyzers (RGAs) provide some useful data, but they are often not accurate enough, and, more importantly, they cannot directly probe the ion concentration along the beam orbit. In this paper we show how one could use gas-scattering lifetime measurements to infer the residual gas concentration suitable for ion instability experiment modelling.},
}