Gatan ORIUS SC 200D Manuale utente

ORIUS™ SC 200D CCD

Camera User’s Guide

Gatan, Inc.

5794 W. Las Positas Blvd.

Pleasanton, CA 94588

USA

Tel (925) 463-0200

FAX (925) 463-0204

September 2008

833.MANUAL

Revision 3

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 i

Preface

About this Guide

This ORIUS™ User’s Guide is written to provide a brief description of the camera’s operating principles,

instructions on how to install the camera, and an introduction to imaging in DigitalMicrograph. For additional

discussion of image processing, refer to the DigitalMicrograph User’s Guide.

Preview of this Guide

The ORIUS™ User’s Guide includes the following chapters:

Chapter 0, “Warning”, summarizes proper use and risk of damage to the camera when doing diffraction analysis

Chapter 1, “Quick Reference,” is a brief summary of the steps necessary to operate an ORIUS™ CCD camera.

Chapter 2, “Introduction,” summarizes the features of the ORIUS™ family cameras.

Chapter 3, “Getting Started,” shows the first steps necessary to start the DigitalMicrograph software and prepare

for the acquisition of an image (Gain Normalization and Magnification Calibration).

Chapter 4, “Image Acquisition,” shows the user the most often used floating windows in DigitalMicrograph and

a brief description on how to use them to view, acquire and save an image.

Chapter 5, “Care and Maintenance,” contains some general tips on the care and maintenance of the ORIUS™

camera. It also contains a list of questions that are often asked by users.

Appendix

- Hardware description provides the system requirements and a checklist. A brief description of the basic

working principles of a CCD camera is also given. The pictures of different parts of the camera (camera head,

back and front of the controller, etc.) are shown.

- CE Requirement.

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 ii

Disclaimer

Gatan, Inc., makes no express or implied representations or warranties with

respect to the contents or use of this manual, and specifically disclaims any

implied warranties of merchantability or fitness for a particular purpose. Gatan,

Inc., further reserves the right to revise this manual and to make changes to its

contents at any time, without obligation to notify any person or entity of such

revisions or changes.

DigitalMicrograph ® is a registered trademark of Gatan. Inc., registered in the

United States.

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 iii

Support

Contacting Gatan Technical Support

Gatan, Inc., provides free technical support via voice, Fax, and electronic mail. To reach Gatan technical

support, call or Fax the facility nearest you or contact by electronic mail:

• Gatan, USA (West Coast)

Tel: (925) 463 0200

Fax: (925) 463 0204

• Gatan, USA (East Coast)

Tel (724) 776 5260

Fax: (724) 776 3360

• Gatan, Germany

Tel: +49 89 358084-0

Fax: +49 89 358084-77

• Gatan, UK

Tel: +44 1235 540160

Fax: +44 1235 540169

• Gatan, Japan

Tel: 81 424 38 7230

Fax: 81 424 38 7228

• Gatan, France

Tel: 33 1 34 94 44 07

Fax: 33 1 34 87 16 68

• Gatan, Singapore

Tel: 65 6293 3160

Fax: 65 6293 3307

• Gatan Online

http://www.gatan.com/

[email protected]

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 iv

Table of Contents

Preface i

Support iii

Table of Contents v

List of Figures vii

ORIUS™ SC 200D CCD CAMERA USER’S GUIDE........................................................................................................ 1

0.WARNING................................................................................................................................................................ VII

1QUICK REFERENCE..............................................................................................................................................1-1

2GETTING STARTED...............................................................................................................................................2-1

2.1THE WORKPLACE ....................................................................................................................................................2-1

2.2CAMERA CONFIGURATION .......................................................................................................................................2-2

2.3DARK CORRECTION .................................................................................................................................................2-3

2.4GAIN NORMALIZATION............................................................................................................................................2-4

2.5MAGNIFICATION CALIBRATION ...............................................................................................................................2-5

2.5.1Low magnification.........................................................................................................................................2-6

2.5.2High magnification........................................................................................................................................2-8

3IMAGE ACQUISITION...........................................................................................................................................3-1

3.1VIEW........................................................................................................................................................................3-1

3.2IMAGE NOTES ..........................................................................................................................................................3-4

3.3TEM SESSION INFORMATION (GLOBAL INFO) .........................................................................................................3-4

3.4IMAGE ACQUISITION................................................................................................................................................3-5

3.5IMAGE SAVING AND PRINTING.................................................................................................................................3-5

3.5.1Save Numbered and file storage path............................................................................................................3-6

3.5.2Construct Image File Naming .......................................................................................................................3-6

3.5.3Page Mode (Report) Options.........................................................................................................................3-7

3.5.4Report (Print Preview)..................................................................................................................................3-8

3.5.5Camera Setup for View and Acquire...........................................................................................................3-10

4CARE AND MAINTENANCE.................................................................................................................................4-1

4.1GENERAL PRECAUTIONS..........................................................................................................................................4-1

4.1.1Peltier cooler maintenance............................................................................................................................4-1

4.1.2Scintillator maintenance and precautions.....................................................................................................4-2

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 v

4.2MOST OFTEN ASKED QUESTIONS ............................................................................................................................4-3

APPENDIX 1...........................................................................................................................................................................I

HARDWARE DESCRIPTION..............................................................................................................................................I

A1SYSTEM REQUIREMENTS..............................................................................................................................................I

A2DESCRIPTION ..............................................................................................................................................................II

A3 INSTALLATION.............................................................................................................................................................. III

A3.4 Electrical connections...........................................................................................................................................VI

APPENDIX 2...................................................................................................................................................................... VII

ENVIRONMENTAL SPECIFICATIONS AND SAFETY REQUIREMENTS........................................................... VII

TEM REQUIREMENTS.......................................................................................................................................................VIII

Operation requirements..............................................................................................................................................VIII

Electrical and power requirements.............................................................................................................................VIII

APPENDIX 3........................................................................................................................................................................IX

CAMERA SPECIFICATIONS...........................................................................................................................................IX

APPENDIX 4........................................................................................................................................................................XI

CE CERTIFICATION.........................................................................................................................................................XI

INDEX................................................................................................................................................................................XIII

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 vi

List of Figures

FIGURE 2-1DIGITALMICROGRAPH WORKPLACE 2-2

FIGURE 2-2(A) CAMERA MENU (B) CAMERA CONFIGURATION 2-3

FIGURE 2-3CAMERA MENU 2-4

FIGURE 2-4GLOBAL MICROSCOPE INFO WINDOW 2-5

FIGURE 2-5MICROSCOPE MENU 2-6

FIGURE 2-6CROSS GRATING SAMPLE 2-6

FIGURE 2-7INSTRUCTIONS WINDOW 2-7

FIGURE 2-8CALIBRATION WINDOW 2-7

FIGURE 2-9CHOOSE YES TO COMPLETE THE CALIBRATION 2-8

FIGURE 2-10MAGNIFICATION TABLE 2-8

FIGURE 2-11HIGH-RESOLUTION IMAGE OF A CRYSTALLINE SAMPLE 2-9

FIGURE 2-12DIFFRACTOGRAM 2-9

FIGURE 2-13HIGH MAGNIFICATION CALIBRATION INSTRUCTIONS 2-10

FIGURE 2-14CALIBRATION WINDOW 2-10

FIGURE 3-1IMAGE WINDOW 3-3

FIGURE 3-2FOCUS LOUPE 3-3

FIGURE A1ORIUS™TM CAMERA MOUNTED ON A TEM COLUMN. II

FIGURE A2CONTROLLER’S FRONT PANEL III

FIGURE A3CONTROLLER’S BACK PANEL III

FIGURE A5CAMERA PNEUMATIC INTERFACE DETAILS IV

FIGURE A6WATER LINES V

FIGURE A7ELECTRICAL DIAGRAM. VI

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 vii

0. WARNING

As with any CCD camera or the viewing screen in the TEM it is possible to permanently burn the

scintillator material with the electron beam. The new SC200D has been designed specifically to

handle the intense beam conditions in Diffraction mode. However, precaution should still be made so

as not to cause damage in extreme conditions that require very long exposure times or time periods

needed for in-situ recording.

To avoid an expensive service visit, recoating of the scintillator and down time please read the

following guidelines and avoid the stated conditions that could produce damage. User damage due to

mis-use or by not following these warnings is not covered by the Warranty.

Conditions to avoid:

•Diffraction patterns with bright central spots

Before going into diffraction mode dramatically reduce the intensity of the electron beam. If

you start to see streaking or require exposures of less than 50ms you have too much beam.

On a thin film (for example carbon) 99.9% or more of the beam will be in the center spot. This

could be as much as 100nA on a typical TEM. Reduce this by going to a smaller spot size,

smaller condenser aperture, use of a selected area aperture and reducing the emission current of

the gun.

A diffraction pattern taken for 1 second with a lower intensity will look better on the camera

(and will not damage the scintillator) than one taken for 1ms at a higher intensity.

If you find yourself using camera exposures of 1 to 50ms in diffraction mode with high beam

intensity (large spot sizes) you are going to possibly burn the scintillator.

If the diffraction pattern is very easy to see on the TEM viewing screen using your eyes, it is

probably going to be too bright to be viewed or captured with the digital camera properly.

•Leaving the beam at cross-over at low magnification. If you have an image on the camera

and you need to leave the beam focused on one point, lower the TEM screen or retract the

camera to avoid exposure to the electron beam, hence protecting your scintillator.

ORIUS ™ 833 CCD Camera User’s Guide Series Rev 3 viii

•Any condition that places a very bright spot in a single place on the scintillator and shows

streaking in the background of the image.

ORIUS™ User’s Guide Series Rev 3 1-1

1 Quick Reference

The steps necessary for operating an ORIUS™ CCD camera are summarized here.

•Make sure that the viewing/camera chamber is at the proper vacuum

for TEM operation.

•Make sure the water and the pressure lines are correctly connected to

the camera and proper water pressure is maintained.

•Switch on the CCD camera controller. Allow the controller time to

“boot” to its operating condition.

•Turn the computer on (if it is not on yet) and double click on the

DigitalMicrograph icon to launch the application. It is important to

wait for the camera controller to boot fully before starting DM.

•Under the camera menu of DM, set or confirm the camera is set to

cool to 10C.

•Check the TEM session information by clicking on the Global Info

button on the Image Info palette (Figure 3-3a, 3-3b).

•Prepare a dark reference image by choosing Prepare Dark Reference

under the Camera menu (Section 2-3).

•Prepare a gain reference image by choosing Preparing Gain Reference

under the Camera menu (Figure 2-3).

•Click on “Start View” on the Camera View palette in Search mode

(Figure 3-1) to position sample area of interest. (exposure mode set to

User).

•If desired, click on Focus Loupe on the View palette (Figure 3-1) to

check the final focus. Make sure Auto Survey is checked.

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