|
|
 |
|
ctfExplorer is written by Maxim V. Sidorov
Please direct your comments, suggestions and bug reports to the e-mail
address below
� 2000-2002, Max V. Sidorov
This software is e-postcard-ware/freeware.
If you use it, if you find it useful, please send me an e-mail
(
maxthebuilder@gmail.com).
|
|
CtfExplorer allows to calculate the Phase Contrast Transfer Function
(CTF): a useful characteristics in Electron Microscopy
Features
 | Calculates 1-Dimensional CTF |
| Calculates 2-Dimensional CTF |
| Calculates Defocus Map |
| Shows the effects of 2-Fold and 3-Fold astigmatism |
| Allows to change Defocus, 2-Fold and 3-Fold astigmatism in real time |
| Shows what happens to 1D CTF in different directions when there's
astigmatism |
| Displays the damping envelopes |
| Allows to select a microscope from a list of microscopes |
| Allows to create a custom microscope |
| Allows to change HT, Cs, Cc, Energy Spread, Convergence for any microscope |
| 2 modes of operation: CTF Explorer (to see everything) and CTF Plotter |
| Compares 2 microscopes or 2 settings for 1 microscope |
| Saves 1D CTF, 2D CTF and "Defocus Map" as bitmaps or metafiles |
<go to top>
Added in 0.99b4 (30 November 2000)
| "Magnification" slider control. This is to show why it is
not a good idea to do HRTEM at x1,000,000 magnification and why
sometimes pictures taken at x200,000 look better than those taken at
x500,000 |
| Export of ctfExplorer 1-D plots to tab-delimited text format |
| "Lichte defocus" is included to the list of the most
useful defoci |
Service release
0.99b5 (18 August 2001)
| User interface improvements and other fixes |
| Extended list of microscopes |
Added in 0.99b6 (5 December 2001)
| Euro-bug removed. When installed on a computer with a Windows locale which uses a comma instead of a point as a decimal separator, ctfExplorer would rise an
exception when one selects a microscope from the list.
Now it's fixed but one must use a point '.' as the
decimal separator e.g. when editing a microscope. I.e. always write 1.3 instead of 1,3 etc. |
Added in 0.999a (10 February 2002)
| Corrected
an error in the formula used for Focal Spread calculation which caused
too strong damping by temporal envelope at high frequencies.
Thanks to Michael O'Keefe, Peter Tiemeijer and Uwe Lucken for
pinpointing this. |
| Added a posibility to change number for High Tension and Objective
Lens current instabilities (along with chromatic aberration and energy
spread they affect the value of focal spread). |
| Added a possibility of editing/saving/restoring of the microscope
list. |
<go to top>
|
|
<go to top>
|
Installation package (~1.4 Mb)
- Download ctfExplorer-package.exe
and run it.
- That's it. A shortcut to ctfExplorer is placed to the top part of
Windows Start menu.
- If you ever want to uninstall: Windows Control Panel | Add/Remove | ctfExplorer.
- If you have problems accessing the help system then see below.
Note: ctfExplorer help system is designed in MS
HTML Help format which relies on Internet Explorer's layout engine for its
functionality. A full version of the browser should be installed on the end user's system.
Version 4.x (or higher) is recommended for full HTML Help functionality.
ctfExplorer will not function properly
(crashes on exit) without MS
HTML Help system installed.
If you have Internet Explorer 4.x (or higher) on your system but the ctfExplorer help still doesn't work (it should work fine under
Windows 98-2000) then try to:
 Download
Hhupd.exe 1.32 (~700 KB). This version will work in all
supported languages.
<go to top>
|
|
System Requirements
| Tested with Windows 95/98/NT4/2000/XP |
| Recommended: at least 1024x768, High color display settings, looks better
with "Small Fonts" setting |
| Reasonably fast computer. On my ancient AMD K6 350MHz with 64Mb RAM, 2d CTF
takes about 4 sec to calculate. Less than 1 sec on AMD Athlon 900MHz.
Doesn't take any time at all on Athlon 2600+ |
| MS Internet Explorer Version 4 (or higher) is recommended for HTML Help
functionality. |
|
|
Web Design � 2000-2003, Maxim V. Sidorov
Created: 21 May 2000
Last updated:
19 April 2017
|
|
 |
Home of ctfExplorer