Abstract
We have tested the Micro Pixel Chamber (μ- PIC) with a fast neutron source which is a candidate to replace the forward muon trigger system of the ATLAS experiment in the luminosity upgrade. We performed the test of the behavior of μ-PIC under a high neutron background environment, as is expected in ATLAS, using a 7 MeV neutron beam at Kobe University. In order to find the gas mixture with less sparks, spark rates were measured for several gas mixtures; Ar+C2H6, Ne+C2H6, and Ne+C2H6+CF4 gases. Using tungsten and nickel for the drift mesh, the effects of sparks from detector materials were also studied. In this paper, we concentrate on the setup for the neutron tests. The details of the experimental results can be found in [1].
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