https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 https://pfspipe.ipmu.jp/jira/browse/PIPE2D-784 DRP 2-D Pipeline <p>As discussed on PFS-Princeton group telecon on March 15 2021, the task is to simulate a full density fiber configuration and estimate how much flux we expect due to scattering.</p> <p>At the moment the exact quantitative measure is somewhat unclear. The plan is to do the first pass on the problem, report and then more precisly define the quantities. </p> PIPE2D-784

Simulate amount of scattering in full fiber configuration

Task Normal Done Done ncaplar ncaplar scatter Tue, 16 Mar 2021 19:48:16 +0000 Wed, 7 Apr 2021 15:32:27 +0000 Wed, 7 Apr 2021 15:32:27 +0000 0 1 <p>I did absolutely the simplest analysis possible, using the isotropic model generated from the data, described in 783. I then placed several spots in a full density configuration (see Figure 2d_example). The figure also shows individual spots which I have placed. Note that the images I have been placing are ``only'' 41x41 images.<br/> I have then extracted the flux in one of the fiber and calculated how much of the flux in that fiber is coming from the different spots. Note that this is simplest boxcar extraction. This is shown in lsf_examples.png. This Figure shows how much flux is due to different fiber in the upper panel, and the lower panel shows the fractional contribution. As we can see, already at 5 pixels from the center of the psf only 50% of the flux is actually coming from the spot placed in that particular fiber.</p> <p>Many improvements are possible, with main ones being a) more realistic model and b) more realistic extraction.</p> Relates PIPE2D-783 Development Rank 0|02qpt6:508yl0chzzy000009f Sprint 2DDRP-2021 A3 2DDRP-2021 A 4 Story Points 3.0