Sigma LBA-708 Manuale Utente

3.3.5.1  Top Hat Fluence 

The Top Hat computational results displays a value for the Max and Min fluence observed in a 

Top Hat beam’s energy profile.  This result is affected by which Top Hat method is being 
employed.  The Top Hat Fluence Pass/Fail edit control items are applied to both the Max and 

Min fluence results.  It is anticipated that the Minimum Pass/Fail limit is primarily applicable to 

the Min results, and that the Maximum Pass/Fail limit is primarily applied to the Max results.  

Thus an energy intensity range can define the acceptable limits of the Top Hat beam’s working 

surface area. 

 

3.3.5.2 

Divergence Pass/Fail 

The following results may be monitored from the Divergence… dialog below the main menu 

Pass/Fail item. 
 

 

 

Figure 44 

 

Note: The numbers appearing in front of the selections will vary with the screen setup. 
Tile 
1 Results 
2 <Frame>  (Beam display window) 
3 <W x H x R> 

(Pan/Zoom window) 

4 <T:tt R:rr>  (Tilt Rotate Window) 
5 Histogram  (Histogram display window) 
Click on one of the numbered items to restore and activate the window. 

 

Operator’s Manual 

 

LBA-PC 

 

Doc. No. 10654-001, Rev 4.10 

101