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Proceedings of the 5th Int. Particle Accelerator Conf., (IPAC2014), p. Germany, 2014

DOI: 10.18429/jacow-ipac2014-thpri094

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MadX Tracking Simulations to Determine the Beam Loss Distributions for the LHC Quench Tests with ADT Excitation

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Quench tests with stored beam were performed in 2013 with one of the LHC main focusing quadrupoles to experimentally verify the quench levels for beam losses in the time scales from a few milliseconds to several seconds. A novel technique combining a 3-corrector orbital bump and transverse-damper kicks was used for inducing the beam losses. MadX tracking simulations were an essential step for determining the spatial and angular beam loss distributions during the experiment. These were then used as input for further energy-deposition and quench-level calculations. In this paper the simulated beam-loss distributions for the respective time scales and experimental parameters are presented. Furthermore the sensitivity of the obtained loss-distributions to the variation of key input parameters, which were measured during the experiment, is discussed.