{"_buckets": {"deposit": "2c166e16-7117-4c22-8557-62b7e4646cc3"}, "_deposit": {"id": "2005211", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2005211"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02005211", "sets": ["1642837962934", "1642838406414"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "Construction of one Megawatte Te-Blumlein Type Nitrogen Laser", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Takushi, Eisei", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kakinaha, Yasumasa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Maekara, Sigemitsu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "\u6ca2\u5cbb, \u82f1\u6b63", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u57a3\u82b1, \u6cf0\u653f", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u524d\u52a0\u826f, \u91cd\u5149", "creatorNameLang": "ja"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "A high power (1 megawatt) nitrogen laser has been designed and constructed using ceramic capacitors. Active length and volume of cavity are 93 cm and 600 cm^3 respectively. The threshold voltage is about 9 KV at nitrogen pressure 45 Torr. The pressure dependence of the laser output has been measured as a function of gas pressure and optimum peak condition is obtained as 35 Torr at 12 KV, 45 Torr at 16.4 KV, respectively. It is found that the pulse repetition (x) dependence of the laser output (I) is represented by the simple relation I=Ae^\u003c-ax\u003e. The directivity of the lasing beam is 23 mrad in the horizontal and 4 mrad in the vertical direction. Because of the short pulse duration of N_2 laser, the life time of green fluoresence ( ^5D_4 - ^7F_5) of Tb^\u003c3+\u003e glass was measurable and was determined to be 643 \u03bcsec. The fractal expression I = AP^\u003c\u00b1\u03b1\u003e for the relation between laser power (I) and gas pressure (P) is adopted, for the first time, in the laser field. [For example, A = 2.5x 1O^\u003c-4\u003e, \u03b1=3.6 for 12 KV (\uff5e35 Torr) and A = 2.4x10^\u003c-2\u003e \u03b1=2.1 for 16 KV (\uff5e40 Torr).]", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u7406\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "eng"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/14487"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0286-9640"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250774"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u7406\u5b66\u90e8\u7d00\u8981"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "Bulletin of the College of Science. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1984-09", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "38", "bibliographicPageEnd": "46", "bibliographicPageStart": "37"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "No38p037.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2005211/files/No38p037.pdf"}, "version_id": "18e2326c-6edc-477b-9870-2c974017ba14"}]}, "item_title": "Construction of one Megawatte Te-Blumlein Type Nitrogen Laser", "item_type_id": "15", "owner": "1", "path": ["1642837962934", "1642838406414"], "permalink_uri": "http://hdl.handle.net/20.500.12000/14487", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2010-01-06"}, "publish_date": "2010-01-06", "publish_status": "0", "recid": "2005211", "relation": {}, "relation_version_is_last": true, "title": ["Construction of one Megawatte Te-Blumlein Type Nitrogen Laser"], "weko_shared_id": -1}