SPECS 2D-CCD, User Manual

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Manual V2.docx | Status 10.12.2015 | Version 1
See "Using the Image View to Display Results" on in Section 3.4 for instructions on viewing
the data.
3.1.3 Scattering Energy Scan
A Scattering Energy (SE) scan records the intensity of electrons scattered from the scattering
crystal as a function of the scattering energy, i.e., the energy the electrons have at the
surface of the scattering crystal. Recording a scattering energy scan is a good way to ensure
that the film is of good quality and suitable for spin resolved measurements. Also see the
Focus Ferrum Spin detector manual.
See "Using the Image View to Display Results" in Section 3.4 for instructions on viewing the
data.
The following sections describe the template in greater detail. It is useful to know the
function of the components in the schedule if you want to modify the template.
Devices
1. UV Dummy: Provides the operating parameters for the excitation source.
11. PHOIBOS Spin: Controls the analyzer. This includes the setting for the rotator (–1
or 1).
12. Magnetic Pulse Control: Allows you to magnetize the target during the
experiment.
13. Spin Detector Control: Sets the parameters for the Ferrum spin detector.
Step Profile
This section changes the scattering energy by changing the lens voltages of the Ferrum
detector for each step. The values for the voltages are stored in a matrix. For each entry in
the step profile, the spectra defined in the spectrum group are measured.
Spectrum Group
This contains the definition for the spectrum(s) that you want to measure. In this case, the
intensity is measured for a fixed energy. In order to have sufficient statistics, 10
measurements are made.
3.1.4 PHOIBOS Spin Adjustment
The PHOIBOS Spin adjustment template is used for optimizing the detector for spin-resolved
signals. When you run this template, the analyzer continually measures the intensity of
electrons with a fixed energy.
Note