Issue 42, 2011

A bright, slow cryogenic molecular beam source for free radicals

Abstract

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 × 1011 molecules/sr/pulse in the X2Σ+(v = 0, Nrot = 0) state, with Image ID:c1cp20335e-t1.gif forward velocity and a rotational temperature of ≈ 1 K. This source compares favorably to other methods for producing beams of free radicals and refractory species for many types of experiments. We provide details of construction that may be helpful for others attempting to use this method.

Graphical abstract: A bright, slow cryogenic molecular beam source for free radicals

Article information

Article type
Paper
Submitted
08 Feb 2011
Accepted
03 May 2011
First published
24 Jun 2011

Phys. Chem. Chem. Phys., 2011,13, 18936-18947

A bright, slow cryogenic molecular beam source for free radicals

J. F. Barry, E. S. Shuman and D. DeMille, Phys. Chem. Chem. Phys., 2011, 13, 18936 DOI: 10.1039/C1CP20335E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements