{"id":{"repo_id":"penn","oai_identifier":"oai:repository.upenn.edu:20.500.14332/61775"},"canonical_url":"https://search.dev.ndltd.org/etd/penn/oai:repository.upenn.edu:20.500.14332/61775","repository":{"repo_id":"penn","name":"University of Pennsylvania","base_url":"https://repository.upenn.edu/server/oai/request"},"display":{"title":"DESIGN, CONSTRUCTION, AND SCIENCE FORECASTS FOR THE TERAHERTZ INTENSITY MAPPER","abstract":"This thesis reports the early-stage development of the Terahertz Intensity Mapper (TIM). TIM isa balloon-borne far infrared (FIR) telescope fielding novel cryogenic kinetic inductance detectors. TIM combines two long-slit grating spectrometers to cover 240-420 microns at a resolving power of R = 250. Building on the flight heritage of the BLAST and SPIDER balloon programs, TIM will wield sub-arcsecond pointing reconstruction to create a 4-D tomographic map of the redshifted [CII] emission line over the GOODS-South/Chandra deep field at ∼ 0.2 square degrees across a redshift range 0.5 ≲ z ≲ 1.7. This will allow TIM to apply (and demonstrate) the novel line intensity mapping (LIM) technique across roughly 5 billion years of cosmic history, which spans the plateau and subsequent decline of cosmic star-formation. This thesis will focus on three sub-projects. First, the status and development of the overall TIM platform, with an emphasis on the design and implementation of the new modular, open-source power distribution system. Second, the testing and characterization of TIM’s final prototype KID array. Finally, a forecast of TIM’s key scientific project, a [CII] cross power intensity map with the galaxy density field as observed by the Euclid space telescope in their deep field Fornax.","abstract_html":"This thesis reports the early-stage development of the Terahertz Intensity Mapper (TIM). TIM isa balloon-borne far infrared (FIR) telescope fielding novel cryogenic kinetic inductance detectors. TIM combines two long-slit grating spectrometers to cover 240-420 microns at a resolving power of R = 250. Building on the flight heritage of the BLAST and SPIDER balloon programs, TIM will wield sub-arcsecond pointing reconstruction to create a 4-D tomographic map of the redshifted [CII] emission line over the GOODS-South/Chandra deep field at ∼ 0.2 square degrees across a redshift range 0.5 ≲ z ≲ 1.7. This will allow TIM to apply (and demonstrate) the novel line intensity mapping (LIM) technique across roughly 5 billion years of cosmic history, which spans the plateau and subsequent decline of cosmic star-formation. This thesis will focus on three sub-projects. First, the status and development of the overall TIM platform, with an emphasis on the design and implementation of the new modular, open-source power distribution system. Second, the testing and characterization of TIM’s final prototype KID array. Finally, a forecast of TIM’s key scientific project, a [CII] cross power intensity map with the galaxy density field as observed by the Euclid space telescope in their deep field Fornax.","abstract_has_math":false,"creators":["Bracks, Justin"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Aguirre, James","Lidz, Adam"],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025","date_published":"2025","updated_at":"2026-07-24T03:46:44Z","subjects":["Astrophysics and Astronomy","Engineering","Physics"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://repository.upenn.edu/handle/20.500.14332/61775","outbound_label":"Repository record","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Aguirre, James","Lidz, Adam"]},{"key":"dc:creator","label":"Author","values":["Bracks, Justin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2025-09-02T16:29:34Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2025-09-02T16:29:34Z"]},{"key":"dc:date.issued","label":"Date","values":["2025"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation/Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Astrophysics and Astronomy","Engineering","Physics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://repository.upenn.edu/handle/20.500.14332/61775"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This thesis reports the early-stage development of the Terahertz Intensity Mapper (TIM). TIM isa balloon-borne far infrared (FIR) telescope fielding novel cryogenic kinetic inductance detectors. TIM combines two long-slit grating spectrometers to cover 240-420 microns at a resolving power of R = 250. Building on the flight heritage of the BLAST and SPIDER balloon programs, TIM will wield sub-arcsecond pointing reconstruction to create a 4-D tomographic map of the redshifted [CII] emission line over the GOODS-South/Chandra deep field at ∼ 0.2 square degrees across a redshift range 0.5 ≲ z ≲ 1.7. This will allow TIM to apply (and demonstrate) the novel line intensity mapping (LIM) technique across roughly 5 billion years of cosmic history, which spans the plateau and subsequent decline of cosmic star-formation. This thesis will focus on three sub-projects. First, the status and development of the overall TIM platform, with an emphasis on the design and implementation of the new modular, open-source power distribution system. Second, the testing and characterization of TIM’s final prototype KID array. Finally, a forecast of TIM’s key scientific project, a [CII] cross power intensity map with the galaxy density field as observed by the Euclid space telescope in their deep field Fornax."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Doctor of Philosophy (PhD)"]},{"key":"dc:title","label":"Title","values":["DESIGN, CONSTRUCTION, AND SCIENCE FORECASTS FOR THE TERAHERTZ INTENSITY MAPPER"]}]}],"canonical_facts":{"dc:contributor.advisor":["Aguirre, James","Lidz, Adam"],"dc:creator":["Bracks, Justin"],"dc:date.accessioned":["2025-09-02T16:29:34Z"],"dc:date.available":["2025-09-02T16:29:34Z"],"dc:date.issued":["2025"],"dc:description.abstract":["This thesis reports the early-stage development of the Terahertz Intensity Mapper (TIM). TIM isa balloon-borne far infrared (FIR) telescope fielding novel cryogenic kinetic inductance detectors. TIM combines two long-slit grating spectrometers to cover 240-420 microns at a resolving power of R = 250. Building on the flight heritage of the BLAST and SPIDER balloon programs, TIM will wield sub-arcsecond pointing reconstruction to create a 4-D tomographic map of the redshifted [CII] emission line over the GOODS-South/Chandra deep field at ∼ 0.2 square degrees across a redshift range 0.5 ≲ z ≲ 1.7. This will allow TIM to apply (and demonstrate) the novel line intensity mapping (LIM) technique across roughly 5 billion years of cosmic history, which spans the plateau and subsequent decline of cosmic star-formation. This thesis will focus on three sub-projects. First, the status and development of the overall TIM platform, with an emphasis on the design and implementation of the new modular, open-source power distribution system. Second, the testing and characterization of TIM’s final prototype KID array. Finally, a forecast of TIM’s key scientific project, a [CII] cross power intensity map with the galaxy density field as observed by the Euclid space telescope in their deep field Fornax."],"dc:description.degree":["Doctor of Philosophy (PhD)"],"dc:identifier.uri":["https://repository.upenn.edu/handle/20.500.14332/61775"],"dc:language.iso":["en"],"dc:subject":["Astrophysics and Astronomy","Engineering","Physics"],"dc:title":["DESIGN, CONSTRUCTION, AND SCIENCE FORECASTS FOR THE TERAHERTZ INTENSITY MAPPER"],"dc:type":["Dissertation/Thesis"]},"updated_at":"2026-07-24T03:46:44Z"}