JES-X3 series - New Function - Flexibility of parameter-settings in Sequential measurement

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ER120005E

Here we introduce a new function of JES-X3 series, enhanced flexibility of parameter-setting ability in a sequential measurement (SqM) mode. By using SqM, you can record a set of ESR signal by changing parameter sequentially which is useful to check time-dependence, temperature dependence, angle dependence, etc.
The SqM is a very useful function also for finding out an optimum acquisition parameter. By changing parameter such as microwave power or modulation width, you will find the change in signal intensity or line-width which helps to determine optimum conditions.
For the SqM function in JES-X3 series, you can use not only equally-spaced but also non-linear increments. Fig.1 shows an example for observing microwave power-saturation. ESR intensity is proportional to the square root of the microwave power in the absence of saturation. It is normally time-consuming to check power-dependence by using equally-spaced interval. As shown in Fig.1 , you can set the increments, factors, and the target values in the table. The result is shown in Fig.2 . The peak broadening, which is an index of power-saturation, is observed in the region surrounded by the red circle. By utilizing this functionality, it is now possible to figure out microwave saturation experiment with non-linear increments in a shorter time than ever before.


Fig.1 Flexible setting of parameters for sequential measurement. / Fig.2 The result of sequential measurement.

The direction for changing parameter is also possible. As a result, it is easy to check thermal hysteresis by raising and declining temperature. Sequential measurement is also useful for monitoring time-dependence of ESR signals by changing interval time. As shown in Fig.3, you can define INTERVAL TIME by use of linear equation. It would be useful for monitoring quick decay in early stage and slow decay in late stage.


Fig.3 Setting menu of changing interval time

As shown above, JES-X3 series has various ways to define sequential parameters, thus corresponding to a variety of measurement. We hope that flexible parameter-settings on a sequential measurement would be helpful for your smooth ESR measurements.

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