theFIT Private pilot

AI-assisted C 1s XPS fitting

A clearer first pass,
ready for expert review.

theFIT combines AI-assisted component detection with classical curve fitting to turn a C 1s spectrum into a transparent, reviewable starting point.

Enter the private pilot

Invitation-only evaluation

Illustrative fit C 1s
Illustrative C 1s component fit A measured spectrum, three generic fitted components and their total fit. Higher binding energy Lower binding energy
Conceptual view — not measured data.

The workflow

From spectrum to an inspectable result

Automation proposes the starting point. Classical fitting and scientific judgement complete the analysis.

  1. 01

    Spectrum input

    Load a C 1s spectrum in a tested VAMAS, TXT, CSV or XLSX format.

  2. 02

    AI-assisted detection

    A trained model proposes likely component positions without assigning chemical states.

  3. 03

    Classical fitting

    Shirley background correction and constrained pseudo-Voigt components create the first-pass fit.

  4. 04

    Expert review

    Inspect the total fit, individual components, parameters, residual and quality warnings.

  5. 05

    Excel and PNG export

    Download the fitted curves as an XLSX workbook and a publication-oriented PNG.

Human in the loop

An assistant, not an answer key.

theFIT is designed to make the first fitting pass visible and reviewable. It does not automatically identify chemical states, and the final interpretation remains with the scientist.

Private evaluation

The pilot is invitation-only.

Approved evaluators can sign in to try the browser-based workflow with their C 1s spectra.

Open the private pilot

“Pilot version. Fitted spectra are suggestions and require expert review.”