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Instrumentscfg for 22 » History » Revision 14

Revision 13 (Anchi Cheng, 10/31/2013 09:32 PM) → Revision 14/17 (Anchi Cheng, 10/31/2013 09:32 PM)

h3. TEM 

 *cs is the coefficient of spherical aberration in meters*.    Find out from TEM manufacture the proper value for your tem. 
 For example 
 <pre> 
 [tem] 
 class: tecnai.Tecnai 
 cs: 2.0e-3 
 </pre> 

 h3. Camera 

 *height and width are number of pixels based on the orientation presented in Leginon image viewer* 
 * Some Tietz camera may have an odd physical dimension.    Use TCL/EMMenu program to find out the good dimension used in Tietz's own software and entered in this configuration. 

 For example 
 <pre> 
 [camera] 
 class: gatan.Gatan 
 zplane: 50 
 height: 4096 
 width: 4096 
 </pre> 


 *zplane is a number that gives the order of camera*.    If a camera with low zplane value is going to acquire an image, Leginon will attempt to retract all cameras at higher zplane values. 

 !zplane.png! 

 *HEIGHT and WIDTH are not shown in these examples for simplicity* 
 * One computer for both tem and digital camera: 
 <pre> 
 [tem] 
 class: tecnai.Tecnai 
 cs: 2.0e-3 
 [camera] 
 class: gatan.Gatan 
 zplane: 50 
 </pre> 

 * Separate computers for the two instruments:    configure only the instrument reside on the particular computer 
 ** On the computer that controls the tem: 
 <pre> 
 [tem] 
 class: tecnai.Tecnai 
 cs: 2.0e-3 
 </pre> 
 ** On the computer that controls the digital camera: 
 <pre> 
 [camera] 
 class: gatan.Gatan 
 zplane: 50 
 </pre> 

 * Two cameras that retract/insert at the same time, typically one of them is an off-axis camera, such as in the case of DE12 and DE Survey camera pair. 
 ** On the computer that controls the digital camera: 
 <pre> 
 [camera1] 
 class: de.DE12 
 zplane: 50 

 [camera2] 
 class: de.DESurvey 
 zplane: 50 
 </pre> 

 * Two cameras on the same computer    but one is retractable and one is non-retractable and at lower position. 
 ** On the computer that controls the digital camera: 
 <pre> 
 [camera1] 
 class: de.DE12 
 zplane: 50 

 [camera2] 
 class: tietz.TietzPXL 
 zplane: 5 
 </pre> 

 * Gatan Orius camera that is installed typically with Gatan K2/Falcon camera is technically on the same plane but is not capable of insertion unless K2 is retracted.    On the other hand, K2 camera insertion includes a retraction of Orius at lower level of the function call in DM.    Therefore, Orius is considered as a camera at lower zplane. 
 <pre> 
 [camera1] 
 class: dmsem.GatanK2Base 
 zplane: 50 

 [camera2] 
 class: dmsem.GatanOrius 
 zplane: 49 
 </pre>