Some bacterial group II introns are widely used for genetic engineering in bacteria, because they can be reprogrammed to insert into the desired DNA target sites. Nisa-MartÃnez, Rafael Laporte, Philippe Jiménez-Zurdo, José Ignacio Frugier, Florian Crespi, Martin Toro, Nicolás Localization of a bacterial group II intron-encoded protein in eukaryotic nuclear splicing-related cell compartments.
76.115 Section 76.115 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Safeguards and Security § 76.115 Special nuclear material of moderate.
10 Energy 2 false Special nuclear material of moderate strategic significance-Category II. The impact of these measurements on previously published CDMS II silicon results is small.« lessġ0 CFR 76.115 - Special nuclear material of moderate strategic significance-Category II. Comparisons of the ionization signals for nuclear recoils to those measured previously by other groups at higher electric fields indicate that the ionization collection efficiency for CDMS II silicon detectors operated at $$\\sim$$4 V/cm is consistent with 100% for nuclear recoils below 20 keV and gradually decreases for larger energies to $$\\sim$$75% at 100 keV. The energy scale can be determined in CDMS II silicon detectors using neutrons incident from a broad-spectrummore » $$^$$% lower than for electron recoils of the same energy. The absolute energy scale for nuclear recoils is necessary to interpret results correctly. Neutrons produce a similar spectrum of low-energy nuclear recoils in such detectors, while most other backgrounds produce electron recoils. The resulting nuclear-recoil energy depositions are detected by ionization and phonon sensors. The Cryogenic Dark Matter Search (CDMS II) experiment aims to detect dark matter particles that elastically scatter from nuclei in semiconductor detectors.
Nuclear-Recoil Energy Scale in CDMS II Silicon Dark-Matter Detectors
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