A bright, slow cryogenic molecular beam source for free radicals.

  title={A bright, slow cryogenic molecular beam source for free radicals.},
  author={John F. Barry and Edward Shuman and David DeMille},
  journal={Physical chemistry chemical physics : PCCP},
  volume={13 42},
We demonstrate and characterize a cryogenic buffer gas-cooled molecular beam source capable of producing bright beams of free radicals and refractory species. Details of the beam properties (brightness, forward velocity distribution, transverse velocity spread, rotational and vibrational temperatures) are measured under varying conditions for the molecular species SrF. Under typical conditions we produce a beam of brightness 1.2 × 10(11) molecules/sr/pulse in the X(2)Σ(+)(v = 0, N(rot) = 0… 

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