| dc.contributor.author | Matthews, L. D. | |
| dc.contributor.author | Crew, G. B. | |
| dc.date.accessioned | 2026-02-12T17:44:26Z | |
| dc.date.available | 2026-02-12T17:44:26Z | |
| dc.date.issued | 2024-10-18 | |
| dc.identifier.uri | https://hdl.handle.net/1721.1/164864 | |
| dc.description | This report was prepared as a final report on the activities undertaken under the NA Development program mentioned in the abstract.
Notionally it is ALMA Technical Note #TBD, but not yet published as such. | en_US |
| dc.description.abstract | This document provides a summary of activities undertaken as part of the Cycle 5 ALMA North America Development Project “Enabling New Science with the ALMA Phasing System - Phase 2 (APP2)”, whose period of performance extended from January 1, 2018 to August 31, 2024. APP2 provided a series of enhancements to ALMA’s very long baseline interferometry (VLBI) and phased array capabilities, leading to the introduction of submillimeter (Band 7) phasing and VLBI capabilities, a passive phasing mode, a Phased Array (pulsar) observing mode, a prototype spectral line VLBI capability, an improved method of handling baseband delays, and a number of other minor system enhancements. | en_US |
| dc.description.sponsorship | The NA ALMA Development Program | en_US |
| dc.publisher | National Radio Astronomy Observatory (NRAO) | en_US |
| dc.subject | Radio Astronomy | en_US |
| dc.subject | ALMA Observatory | en_US |
| dc.subject | Very Long Baseline Interferometry | en_US |
| dc.title | Enabling New Science with the ALMA Phasing System - Phase 2 (APP2): An ALMA North America Development Project | en_US |
| dc.type | Technical Report | en_US |
| dc.identifier.citation | https://science.nrao.edu/facilities/alma/science_sustainability/APP2_Final_Report_v4.1.pdf | en_US |
