PFS-JIRA https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 [INSTRM-1470] Blue/Red flux ratio lower than expected https://pfspipe.ipmu.jp/jira/browse/INSTRM-1470 Instrument control development <p>As discussed in the drp-2d channel (messages around <a href="https://sumire-pfs.slack.com/archives/C3AU3VCMU/p1636429524093300" class="external-link" rel="nofollow">https://sumire-pfs.slack.com/archives/C3AU3VCMU/p1636429524093300</a>) the blue:red flux ratio is lower than expected, with the measured flux in the <tt>blue</tt> arm being roughly a factor of 2-3 lower than expected.</p> <p>Please investigate as to the cause.</p> INSTRM-1470 Blue/Red flux ratio lower than expected Task Normal Open Unresolved Unassigned hassan Mon, 6 Dec 2021 01:52:50 +0000 Wed, 20 Sep 2023 08:39:15 +0000 0 4 <p>(For recording)<br/> Intensive discussion and work in September 2023 revealed that vphg has been installed in wrong orientation. This caused blue is much lower than red. </p> <p>Given that it turns out  a h/w issue, I'll close this ticket if there is no objection.</p> Relates PIPE2D-918 PIPE2D-799 PIPE2D-942 PIPE2D-943 Development Rank 0|zzssmv: