This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
nmr_probes [2023/02/13 11:23] noji [Description] Updated to reflect recent changes as to how to run the NMR GUI. |
nmr_probes [2023/10/24 08:22] noji wish is now wish8.6 |
||
---|---|---|---|
Line 15: | Line 15: | ||
and typing, for the analysis line dipoles | and typing, for the analysis line dipoles | ||
- | $ /usr/bin/wish / | + | $ /usr/bin/wish8.6 |
and for the spectrograph dipoles | and for the spectrograph dipoles | ||
- | $ /usr/bin/wish / | + | $ /usr/bin/wish8.6 |
- | Sometimes the initialization of these applications fail. In that case check section [[nmr probes# | + | **Note that it is not simply wish anymore but wish8.6.** |
+ | Now press start on the GUI, which is shown below, and you should see a field reading. | ||
{{: | {{: | ||
+ | ===== Terminating processes run by another user ===== | ||
+ | A solution has been implemented for the case where one user needs to run the NMR software via the ' | ||
+ | |||
+ | If a user is running ' | ||
+ | |||
+ | * Log on to exp-s3-nmr virtual machine (as described above) | ||
+ | * Type 'ps aux | grep wish8.6' | ||
+ | * Let's suppose user ' | ||
+ | * This will stop both wish8.6 processes that are running as user ' | ||
+ | * Now user ' | ||
+ | |||
+ | In short, | ||
+ | |||
+ | $ ps aux | grep wish8.6 | ||
+ | $ sudo -u usernameRunningWish8.6 pkill wish8.6 | ||
+ | | ||
+ | and you should be able to run the NMR software. | ||
===== Operation ===== | ===== Operation ===== | ||
The NMR program constantly checks the status of the various dipoles from the EPICS system and updates the status column. In addition, the program checks the log file at startup for the closest previously measured value. In case no previous measurement can be used the program searches for a signal around the guessed value of the field. This search can take some time if the calibration is off or the hysteresis of the dipole is large. The maximum number of attempts is limited to 200. After that the status is marked as " | The NMR program constantly checks the status of the various dipoles from the EPICS system and updates the status column. In addition, the program checks the log file at startup for the closest previously measured value. In case no previous measurement can be used the program searches for a signal around the guessed value of the field. This search can take some time if the calibration is off or the hysteresis of the dipole is large. The maximum number of attempts is limited to 200. After that the status is marked as " |