TY  - JOUR
A1  - Sapinski, Mariusz
A1  - Boutachkov, Plamen
A1  - Damjanović, Sanja
A1  - Dermati, Kalliopi
A1  - Kleffner, Carl-Michael
A1  - Pietraszko, Jerzy
A1  - Radon, Torsten
A1  - Ratschow, Sebastian
A1  - Reimann, Stephan
A1  - Schwickert, Marcus
A1  - Sturm, Wilfried
A1  - Walasek-Höhne, Beata
T1  - Upgrade of GSI HADES beam line in preparation for high intensity runs
T2  - IPAC2017 = Proceedings of the 8th International Particle Accelerator Conference [Copenhagen, Denmark, 14–19 May, 2017]
N2  - HADES is a fixed target experiment using SIS18 heavy-ion beams. It investigates the microscopic properties of matter formed in heavy-ion, proton and pion - induced reactions in the 1-3.5 GeV/u energy regime. In 2014 HADES used a secondary pion beam produced by interaction between high-intensity nitrogen primary beam and a beryllium target. In these conditions beam losses, generated by slow extraction and beam transport to the experimental area, led to activation of the beam line elements and triggered radiation alarms. The primary beam intensity had to be reduced and the beam optics modified in order to keep radiation levels within the allowed limits. Similar beam conditions are requested by HADES experiment for upcoming run in 2018 and in the following years. Therefore, a number of measures have been proposed to improve beam transmission and quality. These measures are: additional shielding, additional beam instrumentation, modification of beam optics and increase of vacuum chambers' apertures in critical locations. The optics study and preliminary results of FLUKA simulations for optimization of location of loss detectors are presented.
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/59026
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-590264
SN  - 978-3-95450-182-3
SP  - 2214
EP  - 2216
PB  - JACoW Publishing
CY  - Geneva
ER  -