ISSN:
1432-0630
Keywords:
82.50
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Using a frequency-doubled dye laser, simultaneous high-resolution spectra of14CH2O and12CH2O between 290 and 345 nm were measured. About 30 lines with spectral selectivities for14C≳50 were found. Photolyses on one such line at 326.94 nm of a dilute mixture of14CH2O in natural CH2O gave one-step enrichment factors of up to 150, with μg yields of enriched product. Since a factor of 150 in14C concentration corresponds to ∼7.2 half lives or 41,000 years, laser enrichment of archaeological samples, especially when combined with direct detection methods of14C abundance measurement, can greatly improve the range of radiocarbon dating.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00899566
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