This is the project planning web for the Deep Dish Demonstrator Array (D3A). Goals The HIRAX and CHORD groups have proposed deployment of a Deep Dish Demonstration ...
Snow on dishes Here are a couple papers which discuss the dielectric properties of snow and ice. Properties of Snow Properties of Ice and Snow a Review Matt's Photos ...
D3A Travel and Availability Matt Dobbs : calendar ; Deniz Ölçek: Dallas Wulf: Cynthia Chiang: Bruce Veidt: Leave April 6 10 and 20 24 Vincent MacKay ...
Run Log A more up to date run log, along with archived data, can be found in here: https://mcgill my.sharepoint.com/:f:/g/personal/dallas wulf mail mcgill ca/EuSVLnpTKkxFgwK9jEzk8GcBEUhuvEXb4KAUJ3pWnlZfag ...
D3A Dish Alignment Plan It is important that the two dishes are aligned so that their elevation axes are parallel and point in an East West direction. It is likely ...
D3A Test Plan Types of Tests Radiation pattern measurements HIRAX end to end testing New feed designs Tentative Test Plan 1. Setup Initial pointing ...
Effects of the Presence of a Cable and of Feed Displacements on Beam Shape (CHIME like Feed) Introduction Presented here are the effects on the beam of adding a 0 ...
D3A Feed Support Design Introduction The proposed feed for the D3A dishes is similar to the feed used on the 26 metre telescopes for interferometry with CHIME. This ...
D3A Site The D3A site must satisfy these requirements: minimal environmental impact, minimal First Nations impact, no interference with other telescopes ...
D3A Mount Design Specifications Concept The concrete block has dimensions of 74 cm × 74 cm × 152 cm (or 29" × 29" × 152") and a mass of 2 tonnes. In this concept ...
D3A Terms and Acronyms Term Acronym Definition Beam cut A one dimensional slice through a two dimensional radiation pattern, for example with constant ...
D3A Dish Electromagnetic Design GRASP Simulations GRASP simulations using a simple model have been performed to get initial estimates of the radiation properties ...
D3A Dish Mechanical Design Metrology Results Results from laser tracker measurements. Dish 1 This plot shows the deviation from the CAD file. 3D RMS error 0 ...
D3A Radiation Pattern Measurement One of the D3A experiments is to determine the radiation patterns of the test dishes by using drift scans of bright astronomical ...
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