DASAPT

4.1.15 2026-10-24

What's new in DASAPT 4.1.15

• Each cylinder keeps its own color and opacity. Clicking the name selects that cylinder and does not change the checkbox. Delete removes the cylinder you selected
• A thick arrow runs through the cylinder centre from end to end, in the 1D profile direction. Show axis arrow is on by default
• Include in calculation and Plot layers are the same height. A species that is not included is removed from Plot layers
• RNG files, on the mass-spectrum bar, stores several range sets in one project. New keeps the current ranges and continues in a copy. Click an older set to load it back
• Ion, element, and multiplicity legend checkboxes are saved with the data file. The point cloud updates when you press Update next to Color by

4.1.14 2026-10-23

What's new in DASAPT 4.1.14

• Slice adds Continuous stack. There is no slice width: the view sweeps from the lower end of the axis to the upper end, and atoms already shown stay, so the reconstruction builds up in layers
• Rotate with axis spins around the same axis while the stack plays. Iso surfaces and volume maps that are already on stay visible
• Cylinder 1D concentration error bars use binomial counting statistics: 100 × √(C(1−C)/N), the same 1σ used by IVAS proxigrams
• The contact address in About and on the website is contact@dasapt.com

4.1.13 2026-10-23

What's new in DASAPT 4.1.13

• Color by splits into Element type (pure elements), Ion type (full RRNG formulas such as NdO and OH), and Multiplicity
• RRNG import keeps compound formulas and colors instead of mis-labeling oxides as the bare element
• Display % follows atom count with a higher ladder: 100% under 100k, 50% to 500k, then 25%, 18%, 12%, 8%, and 2% above 20M
• Iso surface Lower and Upper apply when you press Enter or leave the box, not on every keystroke
• With delocalization on, iso surfaces no longer extend outside the tip where there are no ions
• Cylinder 1D profile: Reverse direction flips the axis and profile; θX, θY, θZ set rotation; new cylinders default delocalization to 0
• At delocalization 0, concentration error bars use three half-step-shifted samples
• Cylinder panel: Fit, Compute, Export, and Clear on top; drag the splitter between Include and Plot layers

4.1.12 2026-10-20

What's new in DASAPT 4.1.12

• Display % follows the atom count: under 0.1 million stays 100%, then 20%, 10%, 5%, 2% through 20 million, and 1% above that. Each element uses its own count
• The cube checkbox is saved when you check it, clear it, fit the box, or leave the form. Opening a project does not isolate the cube unless Isolate was on
• Report opens with a cover slide: the DASAPT logo, the project name, and APT Report. Later slides keep the small logo
• Right-click a project and choose Information of this project. It lists the file, ranges, reconstruction, and the saved analyses
• Unselected rows in the ion legend use the same card background as the rest of the window

4.1.11 2026-10-16

What's new in DASAPT 4.1.11

• Report, in the View panel, saves a PowerPoint of the current camera. The list is checked by default: current view, all checked elements together, each element, every iso surface, and every volume map
• Each slide has a scale bar. Element slides show a shaded sphere in that element's color. The file name starts with the project name
• Lattice spacing vs z: spacing is half the distance between the positive and negative side peaks. A parabola is fit through the measured slices
• Each z step tunes ICF for the sharpest SDM. A slice with no peak continues that parabola
• Post-calibration reconstruction: where measured spacing is below the theory value, the gap from one ion to the next is stretched, and x,y scale by 1/sqrt of that factor. Load original reconstruction restores the loaded file
• Detector map and the voltage curve have Full range, which selects the whole voltage range. Sequential map uses the full ion range
• Update analysis keeps the mass-spectrum bin size. Dragging the splitter above the spectrum no longer shows an error
• Pole simulator can load the current detector map

4.1.10 2026-10-13

What's new in DASAPT 4.1.10

• Mass spectrum indexing: Identify peak (multi-charge and multi-atom), mixed-ion formulas, add RRNG from indexing checkboxes with full peak width, clear all RRNG, change ion assignment inside an existing range
• Ion type legend groups the same element, shows m/z, and supports right-click delete
• Mass-to-charge wheel zoom is faster; Ctrl+wheel changes histogram bin size
• Iso surface picks element color on load; Compute checks the overlay checkbox for that module
• New cylinder ROI shows in 3D automatically; cylinder 1D profile legend defaults beside the curves
• Python window: generate an AI prompt for ChatGPT or other assistants to write custom scripts
• Main window opens maximized
• Mass-to-charge plot is no longer covered by the toolbar
• Deleting an ion in the ion-type list no longer crashes

4.1.9 2026-10-13

What's new in DASAPT 4.1.9

• Changing Display % thins ions along the whole specimen; the base is no longer cut off
• If the 3D point count would exceed this PC's safe limit, DASAPT asks before drawing
• Display % updates scan the file once and do not rebuild the mass spectrum
• Open atomic-number XYZ text (optional count header, then Z, X, Y, Z). Elements are colored automatically
• Cylinder Analyze opens the 1D profile editor without crashing
• Cylinder 1D profile: Include in calculation and Plot layers are separate lists

4.1.8 2026-10-12

What's new in DASAPT 4.1.8

• Cancel next to the status-bar progress bar during iso surface, volume map, and marching phase compute
• Preparing… and early percentage while ions are selected and grids are built
• Opening a project restores iso / volume / phase / cylinder overlay checkboxes; unchecked overlays are not recomputed
• Unranged ions are hidden by default when an RRNG is loaded
• Toolbar: Slice checkboxes align with buttons; Full range and Apply to Analyses labels fit
• Python: eight examples (distribution, RRNG histogram, composition, z profile, detector map, scatter, voltage vs z, CSV export)

4.1.7 2026-10-11

What's new in DASAPT 4.1.7

• Preferences → Language: English or 中文. Button names follow that choice. The interface uses Microsoft YaHei
• The setup page has English and 中文. English is already checked. In China, 中文 is already checked
• Send project, for signed-in users. The other machine must stay online
• Enter a user name and an 8-digit code, or only the code when it is the same account. Several projects can be sent. The offer lasts 10 minutes
• Only that project's files are sent. A transfer larger than 5 GB is refused. If three transfers are already running, wait a few minutes
• Cylinder list: Analyze. Ladder diagram estimates interfacial excess. Right-click a 1D profile, including the ladder, to export the data
• A saved cube filter is applied when the project opens. Isolate on / Isolate off replaces Clear
• An atom in front of an iso surface or volume map stays solid. The Saxey diagram keeps the high-mass dissociation tracks
• Large APT files load. The reconstruction opens colored by ion type

4.1.6 2026-10-06

What's new in DASAPT 4.1.6

• Saxey diagram of multi-hit pairs. Drag a box to zoom, or set the X and Y ranges separately
• Color bar range is adjustable. Empty bins use the low end of the color scale
• Show RRNG peaks on the Saxey X axis, the Y axis, or both. Right-click to copy, or export PNG, CSV, or a layered PDF
• Indexing opens the periodic table from H to Og, including lanthanides and actinides. Generate RRNG writes every listed peak into a range file
• Right-click the mass spectrum to copy the figure, export data, or set Arial axis fonts. The wheel over one axis zooms that axis
• Show gimbal hides the cube handles. Each saved cube has its own show checkbox. A cube filter keeps only the ions inside it
• The project name is on the status bar. Right-click a Kingham diagram to export CSV

4.1.5 2026-10-05

What's new in DASAPT 4.1.5

• Volume map keeps a saved list. Check a row to show that map; several can be visible together
• Peak-ratio volume maps can plot the average ratio along depth, and a Kingham diagram of the two peak counts versus APT voltage
• Slice has a checkbox beside the button to show or hide the slice
• Tune ICF sits beside the ICF box. The best fit is written back. SDM and SDM mapping keep the last ICF
• Cylinder profiles can plot peak ratio (A/B and A/(A+B)) and multiplicity density
• On startup, sign in with one click in the browser. After that you can open Community (tutorials), RRNG files shared by others, and the Pole Figure library

4.1.4 2026-10-04

What's new in DASAPT 4.1.4

• Polynomial fit sits beside Contrast and Fast FFT on SDM mapping and on Tune ICF. The ? button explains the score. Check any combination
• Choose an atom pair for SDM. The pair list is above Tune ICF
• The SDM map extends one grid size past the previous boundary
• Cancelling an SDM map stops the calculation without closing the program
• Right-click Copy image and Export CSV on an SDM map, the along-Z profile, and the ICF sweep
• The mass spectrum shows more tick marks and values as you zoom in
• The Community list is wider, so more of each title is visible. Posts are called blogs

4.1.3 2026-10-04

What's new in DASAPT 4.1.3

• Spatial map (Z) uses neighbors inside a 3D ball of radius 1.5 nm. Δ follows the pole: detector square versus the pole-figure center, φx and φy × ICF
• Check ICF and flight path before the map. Defaults are ICF 1.5 and 40 mm. Presets: LEAP 5000 XS (ICF 2, 100 mm), LEAP 5000 XR and LEAP 6000 XR (ICF 1.5, 40 mm)
• Tune ICF sweeps a range and step (default step 0.025). Contrast and Fast FFT are both on. The best waveform is high on both. The ? button explains each score
• SDM mapping scans the pole figure. Defaults: grid 3 mm, step 1 mm, delocalization 1 mm. Contrast and FFT each open a map
• The SDM map color scale can be changed (Viridis, Magma, Jet, and others)
• CPU parallel and GPU are on by default. GPU uses OpenCL when the ion set is large enough; otherwise the calculation stays on the CPU
• Spatial map (plane) has been removed

4.1.2 2026-10-03

What's new in DASAPT 4.1.2

• Cube draws a box you can drag and rotate. Save several cubes, and New adds another
• Apply can align X, Y, and Z with the three edges of the cube
• The cube checkbox hides atoms outside the box. Iso surface, marching phase, and volume map still use the whole reconstruction
• Marching phase keeps a saved list. Check a row to show that phase; several can be visible together
• Opening a project shows the saved iso surfaces and marching phases without recalculating
• Settings carry over after an update
• Python is on the menu. x, y, z, m, and the other loaded fields are listed as variables
• The installer includes Python 3.11 with numpy, pandas, scipy, and matplotlib. More packages can be installed from the editor
• RRNG library: sign in to search, download, or contribute range files. Generate builds a range from the elements you pick
• Full range sets the ion filter to the whole reconstruction

4.1.0 2026-10-02

What's new in DASAPT 4.1.0

• Slice is one slab along X, Y, or Z. Play walks that axis; the gear sets frame size, speed, and step (default step is the slice width)
• Save the slice animation as GIF or MP4, with a scale bar
• Show all restores the saved analyses. Show all atoms keeps analyses inside the slice
• Iso surfaces and volume maps clip the original result. Phase and cylinder recompute inside the slice
• Mass spectrum is a histogram. Ctrl+wheel changes bin size
• Calibration multiplies every ion mass. The factor is saved in the project. The APT file is not changed
• Update analysis recomputes loaded iso surfaces, volume maps, marching phase, and cylinder profiles

4.0.16 2026-10-01

What's new in DASAPT 4.0.16

• Slice parameters open under the Slice button

4.0.15 2026-10-01

What's new in DASAPT 4.0.15

• Slice is a toolbar button. X / Y / Z, width, and Show All open under the button

4.0.14 2026-09-30

What's new in DASAPT 4.0.14

• Slice is a toolbar button. X / Y / Z, width, and Show All open beside the 3D view
• Cylinder stays on the main toolbar
• Detector map beside the voltage curve, with grid, delocalization, color scale, and Export CSV
• Indexing loads the detector map into the pole-figure simulator (LEAP 5000 XS or XR)
• Drag the pole figure to tilt the sample; In-plane slider rotates in the detector plane
• Save Grain keeps the background image with the orientation

4.0.13 2026-09-26

What's new in DASAPT 4.0.13

• Iso surface can highlight a composition interval (Min–Max at.%)
• Marching phase from up to five composition filters
• Apply to Analyses recomputes loaded iso surface, volume map, marching phase, and cylinder profiles for the ion range
• Voltage curve: drag an ion range, or pick ions by a voltage band
• Volume map exports CSV and VTK
• Moving a file into the project library no longer creates a second project with the same name
• Taller 3D view; Background white or dark
• Signed-in name is shown beside Rotate anim.

4.0.12 2026-09-23

What's new in DASAPT 4.0.12

• Cylinder toolbar checkbox shows or hides cylinders; hiding one cylinder stays off
• Legend Size and Display % per element, aligned with the value boxes
• Mass ranges (Da) stay visible in the legend
• Setup installs directly with no license agreement page

4.0.11 2026-09-22

What's new in DASAPT 4.0.11

• Iso-surface enclosed volume, volume fraction, and closed-region number density
• APT files show a structure summary before load
• Project list shows range elements; delete can remove saved files
• Skip organize applies to this file only
• Cylinder toolbar checkbox shows or hides cylinders; hiding one cylinder stays off
• Legend Size and Display % per element
• Display percent is capped so older PCs do not freeze

4.0.10 2026-09-20

What's new in DASAPT 4.0.10

• Select POS/EPOS/APT to create a new project: Copy, Move, or Skip into the library folder
• Load Project does not ask to copy or move files
• Default library folder is the installer data folder
• Preferences Copy/Move no longer conflicts with Light/Dark theme
• Opening a project no longer warns about concentration isosurfaces with All ions
• Status bar no longer stays on Restoring saved analyses

4.0.9 2026-09-20

What's new in DASAPT 4.0.9

• Opened POS/EPOS/APT files can be moved into a default DASAPT folder to keep datasets organized
• Each project is stored in its own subfolder; renaming a project also renames the folder
• Changing the default folder can migrate all existing project data
• Loading a range writes a working RRNG in the project folder; range edits save automatically

4.0.8 2026-09-20

What's new in DASAPT 4.0.8

• Voltage vs Ion curve from Cameca APT standing voltage
• Ctrl+mouse wheel changes mass-spectrum histogram bin size (up = larger bin)
• Box-select a mass-spectrum range to rebin that m/z window; double-click restores the full spectrum
• Partially open source: DASAPT is built on APT Calibrator (open source)

4.0.7 2026-09-19

What's new in DASAPT 4.0.7

• Peak-ratio volume mapping (A/B and A/(A+B)) from individual RRNG isotope peaks
• Multiplicity-density volume mapping (EPOS hit classes)
• Concentration volume and iso-surface: splat all elements once, then switch Ion without recomputing
• Display grid up to 2048 (default 1024)
• Volume map stays in the 3D view after the settings window is closed; toolbar checkboxes show or hide overlays
• APT load progress continues through metadata and uses a slimmer themed bar

4.0.6 2026-09-18

What's new in DASAPT 4.0.6

• Authorship contact email updated to x.chen@mpi-susmat.de
• Cylinder RGB gizmo: clicking an arrow no longer jumps the cylinder
• Arrow handles are shaft and cone only (no extra dots)
• Cylinder ROI with a 1D composition profile along the cylinder axis

4.0.5 2026-09-18

What's new in DASAPT 4.0.5

• Cylinder RGB gizmo: clicking an arrow no longer jumps the cylinder
• Arrow handles are shaft and cone only (no extra dots)
• Drag the left and right bounds of each mass-spectrum range, then Update analysis
• Right-click or right-drag on the mass spectrum to add a new peak; save and export RRNG
• Cylinder ROI with a 1D composition profile along the cylinder axis

4.0.4 2026-09-18

What's new in DASAPT 4.0.4

• Drag the left and right bounds of each mass-spectrum range, then Update analysis
• Right-click or right-drag on the mass spectrum to add a new peak
• Save and export the edited RRNG
• Cylinder ROI with a 1D composition profile along the cylinder axis
• RGB gizmo: drag arrows to move, rings to rotate, and the wall to change radius
• Solid translucent cylinder in the 3D view (not a wireframe)

4.0.3 2026-09-17

What's new in DASAPT 4.0.3

• EPOS load shows a structure dialog listing contained types (XYZ, m/z, TOF, voltage, detector hits, multiplicity)
• If reconstructed XYZ is present in the EPOS file, it is displayed directly (reconstruction parameters are skipped)
• Color by multiplicity: singles, doubles, triples, and 4+ with on/off in the legend
• Copy image on the main 3D view and on each linked-view pane
• Rotate animation at the bottom-right of the main view; export GIF or MP4
• Scale bar in the bottom-left of the 3D view; load status under Display Percent

4.0.2 2026-09-17

What's new in DASAPT 4.0.2

• Linked views above the main 3D display: open N panes that rotate and zoom with the main camera
• Each linked pane can show a different ion / element; initial layout follows Ion type order
• Day / night interface theme
• Independent DAS APT, Dynamic Reconstruction, and Cluster Analysis windows

4.0.1 2026-08-25

What's new in APT Calibrator 4.0.1

• 3D Cluster Analysis window (Tools → Cluster Analysis)
• Per-ion legend, Sphere / Round atoms, scale bar, and reconstruction box
• Recent POS / EPOS files on the Projects button
• Most recently opened projects appear first
• Single-file installer with .NET 4.8 and the Visual C++ runtime
• Automatic updates from dasapt.com