JNM-ECA Series JNM-ECX Series JNM-ECS Series - George Fox ...

2 MEASUREMENT OF DIFFUSION COEFFICIENT
When Fourier-transformed diffusion coefficient measurement data is displayed
1. Click on the Open Data By Fingering a Geometry button in the Data
Slate window.
2. Click on the Open Data File button.
The mouse pointer changes to the shape of a finger.
3. Move the mouse pointer to the area where the Fourier-transformed diffusion
coefficient measurement data is displayed, and click it.
The selected diffusion coefficient measurement data is recalled into the Curve
Analysis window.
■ For extracting peak
There are two methods of extracting method of a peak Pick mode and Peak mode.
If you are using a large number of peaks to calculate the diffusion coefficient, then when
printing those diffusion coefficient values collectively, the Peak mode is convenient. The
candidate peaks of the Peak mode should be listed by peak picking beforehand.
Using the Pick mode, yuo can measure the diffusion coefficient of an arbitrary peak in a
spectrum. It differs from the Peak mode, and it is not necessary that the point for
calculating the diffusion coefficient is the top of the peak.
Method of extracting in Pick mode
When extracting the peaks in the Pick mode, the procedure for creating the
peak-intensity table is as explained below.
1.
Click on the Pick button in the Curve Analysis window.
The cursor tool in the spectrum display range changes to the Pick mode.
2-16 NMECA/ECX-USA-3