title: Note: A versatile mass spectrometer chamber for molecular beam and temperature programmed desorption experiments.
abstract: A dual purpose mass spectrometer chamber capable of performing molecular beam scattering (MBS) and temperature programmed desorption (TPD) is detailed. Two simple features of this design allow it to perform these techniques. First, the diameter of entrance aperture to the mass spectrometer can be varied to maximize signal for TPD or to maximize angular resolution for MBS. Second, the mass spectrometer chamber can be radially translated so that it can be positioned close to the sample to maximize signal or far from the sample to maximize angular resolution. The performance of this system is described and compares well with systems designed for only one of these techniques.
authors: Department of Mechanical Engineering Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
authors: James P
authors: JP
authors: Tonks
authors: AWE Plc, Aldermaston, Reading, Berkshire RG7 4PR, United Kingdom.
authors: Ewan C
authors: EC
authors: Galloway
authors: AWE Plc, Aldermaston, Reading, Berkshire RG7 4PR, United Kingdom.
authors: Martin O
authors: MO
authors: King
authors: VACGEN Ltd, St. Leonards-On-Sea, East Sussex TN38 9NN, United Kingdom.
authors: Gwilherm
authors: G
authors: Kerherve
authors: Department of Mechanical Engineering Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
authors: John F
authors: JF
authors: Watts