Examination of Peak Power Dependence in the UV Inactivation of Bacterial Spores

AUTOR(ES)

Rice, Jane K.

FONTE

American Society for Microbiology

RESUMO

We examine whether the rate of delivery of photons from a UV radiation source has an effect on the inactivation of spores. We directly compare the output of a high-peak-power UV laser source at 248 nm to a low-power continuous lamp source (254 nm) in the inactivation of Bacillus subtilis spores. The two UV sources differ by a factor of 108 in peak power. Contrary to previous reports, no clear differences in spore survival were observed.

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