Overview of advances in light sources

Conference · Sun Jun 01 04:00:00 EDT 1986

OSTI ID:5617086

Hollister, D D

Current efforts at the Lawrence Berkeley Laboratory to improve the operational efficiency of fluorescent lamps are based upon novel techniques intended to reduce internal resonance radiative transport losses. Such losses have been associated with ''entrapment'' of resonance radiation in the optically thick positive column of the mercury vapor disharge. Two promising techniques for entrapment reduction are provided respectively to selective mercury isotope enrichment and by the broadening of the hyperfine structure (hfs) of the resonance line lambda2537 via the Zeeman effect. These techniques have, thus far, led to fluorescent lamp uv production efficiency enhancements, respectively of about 6.8% and 7%. 19 refs., 9 figs., 2 tabs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5617086
• Report Number(s): LBL-21820; CONF-860880-58; ON: DE88004567
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320106* -- Energy Conservation
Consumption
& Utilization-- Building Equipment-- (1987-)
DOCUMENT TYPES
EFFICIENCY
ELECTROMAGNETIC RADIATION
ENERGY SYSTEMS
EVEN-ODD NUCLEI
FLUORESCENT LAMPS
HALIDES
HALOGEN COMPOUNDS
HEAVY NUCLEI
HYPERFINE STRUCTURE
IODIDES
IODINE COMPOUNDS
ISOTOPES
LIGHT BULBS
LIGHTING SYSTEMS
MAGNETIC FIELDS
MERCURY 201
MERCURY COMPOUNDS
MERCURY HALIDES
MERCURY IODIDES
MERCURY ISOTOPES
NUCLEI
RADIATIONS
RESONANCE
REVIEWS
STABLE ISOTOPES
ULTRAVIOLET RADIATION
ZEEMAN EFFECT