Princeton Instruments NIRvana-LN, User Manual, Page: 43 / 122

Chapter 5 LightField First Light Procedure 43
• Acquire
Acquire
mode is typically used for the collection and storage of data. In Acquire
mode, every frame of data collected can be automatically stored, so the completed
dataset may include multiple frames with one or more set of accumulations. This
mode is typically selected during actual data collection.
One limitation of Acquire mode operation is that if data acquisition continues at too
fast a rate for it to be stored, data overflow may occur.
REFERENCES:
For information about synchronizing data acquisition with
external devices, refer to
Chapter 8, Experiment Synchronization ,
on page 71.
All procedures in this chapter assume:
•
The system has been set up in accordance with the instructions in the previous
chapters.
•
LightField has been previously installed on the host computer.
•
Familiarity with LightField.
If this is not the case, review the LightField User’s Manual (refer to
Table 1-1 ,
Related Documentation , on page 9,) or have it available while performing this
procedure.
•
Section 4.10, Fill the Dewar , on page 37, has been read prior to filling the Dewar;
•
The system is being operated in spectroscopy mode.
•
The spectrograph has an entrance slit shutter that is being controlled by the
NIRvana-LN via the
Shutter
connector.
5.2 System Setup and Configuration
Perform the following procedure to set up the system:
1.
Set the spectrograph entrance slit width to 25 µm.
2.
Mount a light source in front of the entrance slit.
3.
Mount the detector to the spectrograph exit port.
4.
Connect the detector shutter cable between the entrance slit shutter and the
NIRvana-LN
Shutter
connector.
•
External Slit Shutter
A shutter assembly mounted externally to the spectrograph has a shutter cable that
plugs into the NIRvana-LN
Shutter
connector.
•
Internal Slit Shutter
A shutter mounted internally has an external shutter connector in the sidewall of the
spectrograph. Connect a shutter cable from the NIRvana-LN
Shutter
connector to
that connector.
5.
Power ON the camera and fill the Dewar.
6.
Power ON the spectrograph.
7.
Turn on the host computer power.
8.
Launch LightField.