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Teledyne IsoPlane SCT-320, Instructions Manual, Page: 7 / 9

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Teledyne IsoPlane SCT-320 Instructions Manual Download Page 7

 

7 

 

NOTE: WAVELENGTH POSITION ACCURACY AT HIGH WAVELENGTHS (632.8NM) IS 
ACHIEVED WHEN CALIBRATING THE SYSTEM USING THE GADJUST FUNCTION IN MONO 
CONTROL SOFTWARE. THIS WILL REQUIRE USE OF A CCD DETECTOR. 

 

 

 

Calibrating the SCT-320 using Software 

 
This procedure requires the use of a CCD detector, Lighfield or WinSpec software, and a mercury lamp 
installed on the entrance slit of the SCT-320. The CCD should be running for this procedure. 
 

16)

 

Make sure that MONO CONTROL SOFTWARE is running before starting Lightfield or WinSpec. This is 
important because MONO CONTROL SOFTWARE must have control of the SCT-320 for this alignment 
procedure. Lightfield or WinSpec will be controlling the CCD. 
  

17)

 

Set the entrance slit width to 10 microns 
 

18)

 

Set CCD region of interest to the center row (1 pixel binning) 
 

19)

 

Scan the SCT-320 to 0.0nm using MONO CONTROL SOFTWARE 

 
20)

 

Run the CCD in continuous or focus mode 
 

21)

 

Verify that the zero order (0.0nm) line is located at the center of the CCD (for example, pixel 670 for a Pixis 
CCD) 
 
 
 

22)

 

If the position of the zero order line needs to be adjusted to the center of the CCD, adjust the grating rotation 
screw. Refer to Figure 4 for location of the Grating Rotation Screw. 
 

23)

 

When zero order has been set, scan the SCT-320 to 546.074nm 
 

24)

 

Note the location of the 546.074nm mercury line. If it is located at pixel 670, then it does not require further 
calibration. If the 547.074nm mercury line is NOT located at pixel 670, continue to the GADJUST section below. 

 
 

GADJUST Procedure 

 

 

25)

 

Monochromator Control Software Main Menu. Select the 

OPERATION

 button. 

 

Summary of Contents for IsoPlane SCT-320

Page 1: ...OR THIS PROCEDURE THE CCD IS CONTROLLED BY LIGHTFIELD OR WINSPEC PRIOR TO INSTALLING A NEW TURRET OR GRATING SET THE SHUTTER CONTROL WITHIN LIGHTFIELD OR WINSPEC TO DISABLED OPEN THIS IS NECESSARY TO ALLOW LASER LIGHT TO ENTER THE SCT 320 CHAMBER FOR OPTICAL ALIGNMENT Setting the IsoPlane SCT 320 to Recognize the New Grating Refer to the Monochromator Control Software Manual Section II for directi...

Page 2: ... position As gratings are indexed into position the ball bearing falls into the V groove to insure position accuracy SCT 320 Detent System 4 After initialization the detent ball bearing should be centered in the middle of the V groove To test this move the grating index stepping motor manually by hand 1 8th of a turn The upper brass gear should not turn If the upper brass gear moves then the index...

Page 3: ...3 b Select Goto Configure Motors c Select Main Board 3 OnAxis d Change values on Pos6 for turret 1 Pos7 for turret 2 Pos8 for turret 3 ...

Page 4: ...cess port and remove the cover CAUTION THE OPTICS ARE NOW EXPOSED DO NOT TOUCH TALK OR BREATHE ON THE OPTICAL SURFACES PERMANENT DAMAGE WILL BE CAUSED TO THE OPTICAL SURFACES BY MECHANICAL CONTACT WITH ANYTHING 3 From the Monochromator Control Software select the OPERATIONS Button 4 From the Operations Window select the grating you want to install and verify that the correct turret is selected Mos...

Page 5: ...igned to the SCT 320 CAUTION DO NOT MOVE THE SCT 320 OR LASER IN RELATION TO EACH OTHER FROM THIS POINT OR THE ALIGNMENT WILL NOT BE CORRECT 8 Remove the two alignment posts from positions 1 and 2 9 Insert one alignment post into Position 3 Refer to Figure3 Figure 3 Location of Alignment Post in Position 3 10 Refer to Figure 4 and become familiar with the location of grating adjustment screws Ther...

Page 6: ... of the pinhole in the alignment post NOTE THAT THE TANGENT SCREW ONLY ADJUSTS THE HEIGHT OF THE LASER BEAM AT HIGH WAVELENGTHS GRATING TILT AND ROTATION SHOULD ONLY BE ADJUSTED AT ZERO ORDER NOTE WHEN INSTALLING COARSE GRATINGS FOR EXAMPLE 75G MM SCAN TO THE HIGHEST DIFFRACTION ORDER THAT YOU CAN SEE SUCH AS 6TH OR 8TH ORDER 14 Repeat the above adjustments in steps 11 13 until the laser beam pass...

Page 7: ... Set the entrance slit width to 10 microns 18 Set CCD region of interest to the center row 1 pixel binning 19 Scan the SCT 320 to 0 0nm using MONO CONTROL SOFTWARE 20 Run the CCD in continuous or focus mode 21 Verify that the zero order 0 0nm line is located at the center of the CCD for example pixel 670 for a Pixis CCD 22 If the position of the zero order line needs to be adjusted to the center o...

Page 8: ... running in continuous or focus mode use the Up Down Jog Buttons to position 547 074nm at the center of the CCD 28 Note the wavelength displayed in Wavelength box located to the left of the Goto button 29 Return to the MAIN MENU by selecting the RETURN button 30 Select the GADJUST button ...

Page 9: ...shown in the Gadjust box at the left side of the screen 34 Press the Store New Gadjust button This stores the new Gadjust value and re initializes the SCT 320 35 With the CCD running in continuous or focus mode check the position of 0 0nm and 546 074nm NOTE WHEN THE SCT 320 INITIALIZES IT WILL RETURN TO THE FIRST GRATING OF THE TURRET INSTALLED MAKE SURE YOU SELECT THE DESIRED GRATING FOR ANY FURT...

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