3200 ANGSTROM PHOSPHOR
Alterations and improvements in the instrumentation and techniques for phosphor efficiency and life measurements were completed. The efficiency of Zn2SiO4:TiO2, settled without ball-milling, was measured and found to be as high as 7%. Several methods for breaking up clusters were explored. Of these,...
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| creator | Ogland,Jon W Malarkey,Edward C Natale,Michael R |
| description | Alterations and improvements in the instrumentation and techniques for phosphor efficiency and life measurements were completed. The efficiency of Zn2SiO4:TiO2, settled without ball-milling, was measured and found to be as high as 7%. Several methods for breaking up clusters were explored. Of these, dry rolling proved successful producing fine particle size, without impairing the original efficiency even when carried out for as long as 72 hours. By comparison P-16 screens gave initial efficiencies of 3.9 and 3.0%. The (Ba,Zn)2Si4O10:Pb system was investigated in detail, and a Ba/Zn ratio of 1.3/0.7 was found to give an efficient phosphor with a highly satisfactory match to the desired emission spectrum. The (Sr,Ca,Zn)3Si2O7:Pb system was studied extensively and the effects of variations in the mole fractions of the three cations were determined. It was found that Sr-rich compositions with Zn mole fractions near one-third give the shortest peak wavelengths (3300-3350A) and the most efficient phosphors. Samples of CaSiO3:Tl and SrSiO3:Tl were prepared; these proved to be very inefficient phosphors. (Author) |
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The efficiency of Zn2SiO4:TiO2, settled without ball-milling, was measured and found to be as high as 7%. Several methods for breaking up clusters were explored. Of these, dry rolling proved successful producing fine particle size, without impairing the original efficiency even when carried out for as long as 72 hours. By comparison P-16 screens gave initial efficiencies of 3.9 and 3.0%. The (Ba,Zn)2Si4O10:Pb system was investigated in detail, and a Ba/Zn ratio of 1.3/0.7 was found to give an efficient phosphor with a highly satisfactory match to the desired emission spectrum. The (Sr,Ca,Zn)3Si2O7:Pb system was studied extensively and the effects of variations in the mole fractions of the three cations were determined. It was found that Sr-rich compositions with Zn mole fractions near one-third give the shortest peak wavelengths (3300-3350A) and the most efficient phosphors. Samples of CaSiO3:Tl and SrSiO3:Tl were prepared; these proved to be very inefficient phosphors. (Author)</description><language>eng</language><subject>BARIUM ZINC SILICATES ; CATHODE RAY TUBE SCREENS ; Electrooptical and Optoelectronic Devices ; EMISSION SPECTRA ; FIBER OPTICS ; LEAD COMPOUNDS ; LUMINESCENCE ; MILLING(MIXING) ; Miscellaneous Materials ; PHOSPHORESCENT MATERIALS ; SILICATES ; Solid State Physics ; STRONTIUM COMPOUNDS ; STRONTIUM SILICATE COMPLEXES ; ULTRAVIOLET RADIATION ; ZINC COMPOUNDS ; ZINC SILICATE COMPLEXES ; ZINC SILICATES</subject><creationdate>1969</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,780,885,27567,27568</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/AD0699836$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Ogland,Jon W</creatorcontrib><creatorcontrib>Malarkey,Edward C</creatorcontrib><creatorcontrib>Natale,Michael R</creatorcontrib><creatorcontrib>WESTINGHOUSE ELECTRIC CORP BALTIMORE MD AEROSPACE DIV</creatorcontrib><title>3200 ANGSTROM PHOSPHOR</title><description>Alterations and improvements in the instrumentation and techniques for phosphor efficiency and life measurements were completed. The efficiency of Zn2SiO4:TiO2, settled without ball-milling, was measured and found to be as high as 7%. Several methods for breaking up clusters were explored. Of these, dry rolling proved successful producing fine particle size, without impairing the original efficiency even when carried out for as long as 72 hours. By comparison P-16 screens gave initial efficiencies of 3.9 and 3.0%. The (Ba,Zn)2Si4O10:Pb system was investigated in detail, and a Ba/Zn ratio of 1.3/0.7 was found to give an efficient phosphor with a highly satisfactory match to the desired emission spectrum. The (Sr,Ca,Zn)3Si2O7:Pb system was studied extensively and the effects of variations in the mole fractions of the three cations were determined. It was found that Sr-rich compositions with Zn mole fractions near one-third give the shortest peak wavelengths (3300-3350A) and the most efficient phosphors. Samples of CaSiO3:Tl and SrSiO3:Tl were prepared; these proved to be very inefficient phosphors. (Author)</description><subject>BARIUM ZINC SILICATES</subject><subject>CATHODE RAY TUBE SCREENS</subject><subject>Electrooptical and Optoelectronic Devices</subject><subject>EMISSION SPECTRA</subject><subject>FIBER OPTICS</subject><subject>LEAD COMPOUNDS</subject><subject>LUMINESCENCE</subject><subject>MILLING(MIXING)</subject><subject>Miscellaneous Materials</subject><subject>PHOSPHORESCENT MATERIALS</subject><subject>SILICATES</subject><subject>Solid State Physics</subject><subject>STRONTIUM COMPOUNDS</subject><subject>STRONTIUM SILICATE COMPLEXES</subject><subject>ULTRAVIOLET RADIATION</subject><subject>ZINC COMPOUNDS</subject><subject>ZINC SILICATE COMPLEXES</subject><subject>ZINC SILICATES</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1969</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZBAzNjIwUHD0cw8OCfL3VQjw8A8G4iAeBta0xJziVF4ozc0g4-Ya4uyhm1KSmRxfXJKZl1oS7-hiYGZpaWFsZkxAGgBmORwM</recordid><startdate>196912</startdate><enddate>196912</enddate><creator>Ogland,Jon W</creator><creator>Malarkey,Edward C</creator><creator>Natale,Michael R</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>196912</creationdate><title>3200 ANGSTROM PHOSPHOR</title><author>Ogland,Jon W ; Malarkey,Edward C ; Natale,Michael R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_AD06998363</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1969</creationdate><topic>BARIUM ZINC SILICATES</topic><topic>CATHODE RAY TUBE SCREENS</topic><topic>Electrooptical and Optoelectronic Devices</topic><topic>EMISSION SPECTRA</topic><topic>FIBER OPTICS</topic><topic>LEAD COMPOUNDS</topic><topic>LUMINESCENCE</topic><topic>MILLING(MIXING)</topic><topic>Miscellaneous Materials</topic><topic>PHOSPHORESCENT MATERIALS</topic><topic>SILICATES</topic><topic>Solid State Physics</topic><topic>STRONTIUM COMPOUNDS</topic><topic>STRONTIUM SILICATE COMPLEXES</topic><topic>ULTRAVIOLET RADIATION</topic><topic>ZINC COMPOUNDS</topic><topic>ZINC SILICATE COMPLEXES</topic><topic>ZINC SILICATES</topic><toplevel>online_resources</toplevel><creatorcontrib>Ogland,Jon W</creatorcontrib><creatorcontrib>Malarkey,Edward C</creatorcontrib><creatorcontrib>Natale,Michael R</creatorcontrib><creatorcontrib>WESTINGHOUSE ELECTRIC CORP BALTIMORE MD AEROSPACE DIV</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Ogland,Jon W</au><au>Malarkey,Edward C</au><au>Natale,Michael R</au><aucorp>WESTINGHOUSE ELECTRIC CORP BALTIMORE MD AEROSPACE DIV</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>3200 ANGSTROM PHOSPHOR</btitle><date>1969-12</date><risdate>1969</risdate><abstract>Alterations and improvements in the instrumentation and techniques for phosphor efficiency and life measurements were completed. The efficiency of Zn2SiO4:TiO2, settled without ball-milling, was measured and found to be as high as 7%. Several methods for breaking up clusters were explored. Of these, dry rolling proved successful producing fine particle size, without impairing the original efficiency even when carried out for as long as 72 hours. By comparison P-16 screens gave initial efficiencies of 3.9 and 3.0%. The (Ba,Zn)2Si4O10:Pb system was investigated in detail, and a Ba/Zn ratio of 1.3/0.7 was found to give an efficient phosphor with a highly satisfactory match to the desired emission spectrum. The (Sr,Ca,Zn)3Si2O7:Pb system was studied extensively and the effects of variations in the mole fractions of the three cations were determined. It was found that Sr-rich compositions with Zn mole fractions near one-third give the shortest peak wavelengths (3300-3350A) and the most efficient phosphors. Samples of CaSiO3:Tl and SrSiO3:Tl were prepared; these proved to be very inefficient phosphors. (Author)</abstract><oa>free_for_read</oa></addata></record> |
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| source | DTIC Technical Reports |
| subjects | BARIUM ZINC SILICATES CATHODE RAY TUBE SCREENS Electrooptical and Optoelectronic Devices EMISSION SPECTRA FIBER OPTICS LEAD COMPOUNDS LUMINESCENCE MILLING(MIXING) Miscellaneous Materials PHOSPHORESCENT MATERIALS SILICATES Solid State Physics STRONTIUM COMPOUNDS STRONTIUM SILICATE COMPLEXES ULTRAVIOLET RADIATION ZINC COMPOUNDS ZINC SILICATE COMPLEXES ZINC SILICATES |
| title | 3200 ANGSTROM PHOSPHOR |
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