JEOL 1010 Скачать руководство пользователя страница 8

Страница: 8 / 15

Version 2017-01-19 for GI use

Turn screw a counter-clockwise until the other edge is found. Do this while

counting the number of turns, to know where the center is.

Use screw b (first completely in until stop. Be careful not to … to prevent the

diaphragm to fall into the column ???

FRESNEL FRINGES ADJUSTMENT

Insert a carbon test grid (ASK Geert-Jan). Put HT and Fil on.

Go to low magnification to search a nice piece of membrane

Low mag with level f directed to the left

Check astigmatism by defocussing a little bit (knob 7)

Содержание 1010

Страница 1: ...he slit over the cover grab the cover with the red dots oriented in the long axis turn a quarter and gently open it Insert the grid specimen up Close the cover and remove the wing key Check that all c...

Страница 2: ...n the goniometer Gently press the grid rod straight into the opening To make contact press the rod cylinder metal color in ours with a flat hand palm a green light lights line Wait until the green lig...

Страница 3: ...Version 2017 01 19 for GI use 2 Viewing specimen acquiring images right panel left panel and central base of the column with xy navigation...

Страница 4: ...tor use switch 4 MAG 2 is for pre set magnifications If possible use standard magnification steps to better compare images XY navigation with 14 and 15 Spread the bundle as evenly as possible just ove...

Страница 5: ...these part click the green screen icon within the Intelligent exposure pop up window and drag a ROI Manual exposure manual minimum and maximum setting and manual gamma adjustment is also possible Ask...

Страница 6: ...lower condenser diaphragms by switching the level c to the right 3 Go up and down with brightness 12 Adjust over and underfocus If the A well centered filament gives a centered beam position swings ad...

Страница 7: ...he beam with brightness 7 Reinsert the upper diaphragm c and the lower diaphragm HOW TO ADJUST THE UPPER CONDENSER DIAPHRAGM 1 Switch HT and Fil on Go to LOW MAG and spread the beam 2 The upper diaphr...

Страница 8: ...s 5 Use screw b first completely in until stop Be careful not to to prevent the diaphragm to fall into the column 6 FRESNEL FRINGES ADJUSTMENT 1 Insert a carbon test grid ASK Geert Jan Put HT and Fil...

Страница 9: ...g in the TEM a beam alignment should be performed prior to use A tool for this alignment is a holey grid A holey grid is a TEM grid support coated with a thin plastic film and a stabilizing carbon lay...

Страница 10: ...lie stated that the wavelength of an electron beam is a function of the accelerating voltage used By increasing the accelerating voltage a shorter wavelength is obtained The shorter wavelength is appl...

Страница 11: ...increase accelerating voltage improve the vacuum and or use a thinner specimen An astigmation occurs when a lens field is not symmetrical in strength but weaker in one plane than another Astigmation...

Страница 12: ...nd right to center the spot right on the small dot on the phosphor plate Spread the bundle with the brightness knob Center the position of the spread bundle using the lateral and front knobs of the up...

Страница 13: ...tween Brightness and Def Apply iterations until the rim is central respect to the hole When ready OBJ STIG off Focus And check with the wobbler that not shift occurs BUGS TROUBLE SHOOTING When the swi...

Страница 14: ...holder Each position can be found by switching SPEC SEL left bottom of the column However as a routine only the position 1 is used When a very bright spot that can not be moved is present in the mid o...

Страница 15: ...Version 2017 01 19 for GI use HT and FIL on again Bugs...