{"id":{"repo_id":"bu","oai_identifier":"oai:open.bu.edu:2144/10728"},"canonical_url":"https://search.dev.ndltd.org/etd/bu/oai:open.bu.edu:2144/10728","repository":{"repo_id":"bu","name":"Boston University","base_url":"https://open.bu.edu/oai/request"},"display":{"title":"A hollow cathode source for spectroscopic investigations.","abstract":"During recent years the interests of experimental spectroscopists have changed from the development of high resolution instruments to the development of light sources. One of the most promising types of light source is the hollow cathode glow discharge tube. In view of this, the present research was undertaken to develop, build, and study a hollow cathode glow discharge tube and the necessary vacuum, circulating, purifying system, for use with the high resolution instrument already available, the Littrow mount. It is intended that this project be the first in a series of spectroscopic investigations using the equipment developed and studied here. [TRUNCATED]","abstract_html":"During recent years the interests of experimental spectroscopists have changed from the development of high resolution instruments to the development of light sources. One of the most promising types of light source is the hollow cathode glow discharge tube. In view of this, the present research was undertaken to develop, build, and study a hollow cathode glow discharge tube and the necessary vacuum, circulating, purifying system, for use with the high resolution instrument already available, the Littrow mount. It is intended that this project be the first in a series of spectroscopic investigations using the equipment developed and studied here. [TRUNCATED]","abstract_has_math":false,"creators":["Johnson, Albert David"],"institution":"Boston University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1951,"date_issued":"1951","date_published":"1951","updated_at":"2026-07-24T01:25:35Z","subjects":[],"languages":["en_US"],"rights":["Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictions."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["b14719216"],"render_values":[{"text":"b14719216","href":null,"code":true}]}]},"links":{"outbound_url":"https://hdl.handle.net/2144/10728","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Johnson, Albert David"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2015-03-23T16:49:50Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2015-03-23T16:49:50Z"]},{"key":"dc:date.issued","label":"Date","values":["1951"]},{"key":"dc:publisher","label":"Institution","values":["Boston University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis/Dissertation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictions."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["b14719216"]},{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/2144/10728"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis (Ph.D.)--Boston University"]},{"key":"dc:description.abstract","label":"Abstract","values":["During recent years the interests of experimental spectroscopists have changed from the development of high resolution instruments to the development of light sources. One of the most promising types of light source is the hollow cathode glow discharge tube. In view of this, the present research was undertaken to develop, build, and study a hollow cathode glow discharge tube and the necessary vacuum, circulating, purifying system, for use with the high resolution instrument already available, the Littrow mount. It is intended that this project be the first in a series of spectroscopic investigations using the equipment developed and studied here. [TRUNCATED]"]},{"key":"dc:title","label":"Title","values":["A hollow cathode source for spectroscopic investigations."]}]}],"canonical_facts":{"dc:creator":["Johnson, Albert David"],"dc:date.accessioned":["2015-03-23T16:49:50Z"],"dc:date.available":["2015-03-23T16:49:50Z"],"dc:date.issued":["1951"],"dc:description":["Thesis (Ph.D.)--Boston University"],"dc:description.abstract":["During recent years the interests of experimental spectroscopists have changed from the development of high resolution instruments to the development of light sources. One of the most promising types of light source is the hollow cathode glow discharge tube. In view of this, the present research was undertaken to develop, build, and study a hollow cathode glow discharge tube and the necessary vacuum, circulating, purifying system, for use with the high resolution instrument already available, the Littrow mount. It is intended that this project be the first in a series of spectroscopic investigations using the equipment developed and studied here. [TRUNCATED]"],"dc:identifier.other":["b14719216"],"dc:identifier.uri":["https://hdl.handle.net/2144/10728"],"dc:language.iso":["en_US"],"dc:publisher":["Boston University"],"dc:rights":["Based on investigation of the BU Libraries' staff, this work is free of known copyright restrictions."],"dc:title":["A hollow cathode source for spectroscopic investigations."],"dc:type":["Thesis/Dissertation"]},"updated_at":"2026-07-24T01:25:35Z"}