Title:	Slow ammonia molecules in an electrostatic quadrupole guide
Authors:	Junglen, T. Rieger, T. Rangwala, S.A. Pinkse, P.W.H. Rempe, G.
Keywords:	Zeeman and Stark effects Atomic and molecular beam sources and techniques
Issue Date:	Nov-2004
Publisher:	EDP Sciences/Springe
Citation:	European Physical Journal D, 2004, Vol.31, p365–373
Abstract:	An electrostatic quadrupole is used to filter slow dipolar ND3 molecules from an effusive source and to guide them into ultrahigh vacuum. The molecules in the electrostatic quadrupole experience a Stark interaction which allows filtering of small velocities in the linear and bent sections of the quadrupole. With this technique we demonstrate a flux of ≈ 1010/s with a longitudinal temperature of a few K. The technique and the set-up are discussed in detail, and the guided gas as well as the output beam are characterized. Improvements in the set-up are highlighted, as for instance cooling of the effusive source to below 150 K.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/4704
ISSN:	1434-6079
Alternative Location:	http://dx.doi.org/10.1140/epjd/e2004-00130-3 http://adsabs.harvard.edu/abs/2004EPJD...31..365J
Copyright:	2004 EDP Sciences/Springer
Appears in Collections:	Research Papers (LAMP)

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