Characteristics:

General:
- 32-bit program based on MS Windows 32-bit and 64-bit operating systems
- Simultaneous display and handling of up to 300 windows
- Individual preferences (curve fitting, layout, graph display, and printing etc.)
- Quantification using sensitivity factors saved in different data banks
Processing:
- Background simulation by different models (Shirley, Tougaard, polynomial etc.)
- Charge compensation, smoothing, differentiation and other usual processings
Peak fit:
- Curve fitting algorithm of Marquardt
- Product, sum or convolution of Gaussian and Lorentzian functions
- Absolute or relative fit parameters
- Background simulation integrated in the fitting procedure
- Calculation of fit parameter errors
- Valence-band edge estimation using convolution of square root and Gaussian functions
- Fermi edge estimation using convolution of Theta and Gaussian functions
- Plot of fit parameters with respect to batch parameters
- Calculation of inelastic electron scattering cross-sections
Quantification:
- Quantification from surveys, narrow scans or fitted spectra
- Using empirical sensitivity factors (e.g. Wagner) or theoretical values
- Plot of the quantification results with respect to batch parameters
- Convenient export of the quantification results
- Estimation of film thickness using two methods (ARXPS and ERXPS)
Input/Output:
- Input routines for 32 different data and user demand formats
- Saving and loading of projects
- Comfortable data export of all Windows created with Unifit
- Copy – Paste function for monitor presentation, quantification, and fit-parameter table
- High resolution export (1200 dpi) using all commonly used formats (jpg, tiff, emf, gif, …)
Windows:
- Saving of window size and position in the UNIFIT projects
- Manual changing of windows size and position
- Direct selection and activation of the windows, particularly next or previous ones
- Cascade and two different tile arrangements of the windows
- Exchanging function for two standard windows
Specials:
- Calibration of intensity scale
- Batch processing for treatment of parameter-dependent series
- Integrated databases of Auger parameters, line positions and doublet data
- Five different 3D-plots
- Extensive graphical design tools
- Fill colours for the fitting component areas
- Auto-save function for the UNIFIT projects, five backup files are stored

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