Difference between revisions of "SoLID Weekly : Monday, Mar.25, 2019 9:30am EDT"

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4) Zhiwen: Haiyan knew the inefficiency, and we haven't had a method to solve this problem yet. The LGS have the similar problem, we have to think the design changing influence on the other detectors also.  
 
4) Zhiwen: Haiyan knew the inefficiency, and we haven't had a method to solve this problem yet. The LGS have the similar problem, we have to think the design changing influence on the other detectors also.  
  
5) Seamus: It because of the HGC is too big, most of the event is from the center of the target. Collimator need to be adjusted in order to reduce the collimator interaction effect shown in the Zhiwen's plot.
+
5) Seamus: It may because of the collimator is too big, and most of the event are from the center of the target. Collimator need to be adjusted in order to reduce the collimator interaction effect, which is shown in the Zhiwen's plot. It may need to cut on vertex and angle.
  
 
==Present==
 
==Present==
 
Alexandre, JP, Paul, Seamus, Rich, Junqi, Ye, Jinlong, and Zhiwen
 
Alexandre, JP, Paul, Seamus, Rich, Junqi, Ye, Jinlong, and Zhiwen

Revision as of 10:05, 25 March 2019

Agenda

  • General discussion
  • Sub-system updates

Minutes

1) JP: Review data hasn't been scheduled.

2) Zhiwen: HGC general update on detector efficiency and rejection, and it can be improved with low momentum and lower angle events. More details will be shown during the Tuesday simulation meeting.

3) JP: for the low momentum the design value is 2.5 GeV. Did Zhiwen talked to Haiyan about the 30% inefficiency compared with 10% inefficiency(design)? The fine tuning may not solve the problem, it may need to change on the design level.

4) Zhiwen: Haiyan knew the inefficiency, and we haven't had a method to solve this problem yet. The LGS have the similar problem, we have to think the design changing influence on the other detectors also.

5) Seamus: It may because of the collimator is too big, and most of the event are from the center of the target. Collimator need to be adjusted in order to reduce the collimator interaction effect, which is shown in the Zhiwen's plot. It may need to cut on vertex and angle.

Present

Alexandre, JP, Paul, Seamus, Rich, Junqi, Ye, Jinlong, and Zhiwen