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Deployed state-of-the-art diagnostics include vacuum-ultraviolet to ultraviolet, visible, and mid-infrared optical spectroscopy setups, and a microwave interferometry setup. This work examines the specifications and requirements for high-speed flow measurements, and discusses the design choices for the main diagnostics. The spectroscopy setup covers a spectral window between 120 and 5000 nm, and the microwave interferometer can measure electron densities up to 1.5 \u00d7 1020 electrons\/m3. The main design drivers and technological choices derived from the requirements are discussed in detail herein.<\/jats:p>","DOI":"10.3390\/s23136027","type":"journal-article","created":{"date-parts":[[2023,6,30]],"date-time":"2023-06-30T01:14:12Z","timestamp":1688087652000},"page":"6027","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["VUV to IR Emission Spectroscopy and Interferometry Diagnostics for the European Shock Tube for High-Enthalpy Research"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7522-5800","authenticated-orcid":false,"given":"Ricardo","family":"Grosso Ferreira","sequence":"first","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8790-8999","authenticated-orcid":false,"given":"Bernardo Brotas","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2677-574X","authenticated-orcid":false,"given":"Lu\u00eds Lemos","family":"Alves","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0670-1214","authenticated-orcid":false,"given":"Bruno","family":"Gon\u00e7alves","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0934-7997","authenticated-orcid":false,"given":"Victor Fernandez","family":"Villace","sequence":"additional","affiliation":[{"name":"European Space Agency\u2014European Space Research and Technology Centre, 2201 AZ Noordwijk, The Netherlands"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2520-3408","authenticated-orcid":false,"given":"Lionel","family":"Marraffa","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"},{"name":"European Space Agency\u2014European Space Research and Technology Centre, 2201 AZ Noordwijk, The Netherlands"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1993-1548","authenticated-orcid":false,"given":"M\u00e1rio","family":"Lino da Silva","sequence":"additional","affiliation":[{"name":"Instituto de Plasmas e Fus\u00e3o Nuclear, Instituto Superior T\u00e9cnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,6,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"349","DOI":"10.2514\/1.T6174","article-title":"Evaluating Shock-Tube Informed Biases for Shock-Layer Radiative Heating Simulations","volume":"35","author":"Johnston","year":"2021","journal-title":"J. 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