User Tools

Site Tools


tuning_the_s800_xdt

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
tuning_the_s800_xdt [2015/10/27 13:03]
pereira
tuning_the_s800_xdt [2015/10/27 14:28]
pereira [Setting up Reaction Settings]
Line 155: Line 155:
           * They correspond to the non-dispersive position of the beam in the CRDCs.            * They correspond to the non-dispersive position of the beam in the CRDCs. 
  
-{{:wiki:CRDCS-example.png?850|CRDCs summary spectra}}+{{:wiki:CRDCS-example.png?850|S800_CRDCS.win SpecTcl window}}
  
  
Line 310: Line 310:
   * Reaction setting to FP    * Reaction setting to FP 
       * Start with Attenuator setting of unreacted beam and step up in intensity       * Start with Attenuator setting of unreacted beam and step up in intensity
-      * Set up beam blocker, if necessary+      * If necessary, set up beam blocker looking at **CRDC1.RAWS** and/or **CRDC2.RAWS** SpecTcl spectra (see **S800_CRDCS.win** SpecTcl window shown above)  
 +          * Click on label **I255 Slits** in the S3 page of Barney 
 +          * Expected "open" values for top and bottom slits are CT ~6.8 and CB ~3.2respectively 
           * Expect to see unreacted beam if reaction setting is within +/- 3% of unreacted beam setting           * Expect to see unreacted beam if reaction setting is within +/- 3% of unreacted beam setting
           * Should have to move only one of the two blockers unless charge states are present           * Should have to move only one of the two blockers unless charge states are present
-          * A graphic tool is available to help (not yet calibrated) 
           * Try to cut only as much as necessary; depends on           * Try to cut only as much as necessary; depends on
               * What rate limits allow               * What rate limits allow
tuning_the_s800_xdt.txt · Last modified: 2023/09/22 15:15 by swartzj