1 / 11

Hbd Software Update

Hbd Software Update. By Sky Rolnick 7/28/09 Hbd Group Meeting. Issues with Detector Geometry. Long standing issues with geometry …. Ugh, when will it stop. Two classes defined HbdFinalSimSupport, hbdDetectorGeo with inconsistent geometries.

wlevey
Download Presentation

Hbd Software Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Hbd Software Update By Sky Rolnick 7/28/09 Hbd Group Meeting

  2. Issues with Detector Geometry • Long standing issues with geometry …. Ugh, when will it stop. • Two classes defined HbdFinalSimSupport, hbdDetectorGeo with inconsistent geometries. • Using hbdDetectorGeo, we notice inconsistencies in matching tracks from data and what is seen in EventDisplay. • Correction introduced by Maxim back in March seems to work for event display but not for data. • It seems that bugs were introduced while trying to fix other bugs further complicating the issue. (it’s a tangled mess right now!) • This is probably because Event display introduces additional flips but this needs to be confirmed. • Took several days to understand all this mess, still don’t fully understand all issues. Sky Rolnick UC Riverside HBD Group Meeting

  3. Testing Geometry Transforms • Generated 10GeV single electrons directed at each pad of Hbd. • Make EventDisplay animation for all 2304 events minus ones where tracks are outside acceptance. Sky Rolnick UC Riverside HBD Group Meeting

  4. hbdDetectorGeo • Modifications to hbdDetectorGeo … • Decided to leave geom.hbd.pads database alone, ie. Store only arm, sec, padid. • Introduced additional fields in padgeom structure, ie. CenterInLocalY, CenterInLocalZ, globalX, globalY, globalZ. • Allows new methods, ie. FindNearestPad, FindNearestPanel, getPadCenter, etc. • Questions about PHPanel? Sky Rolnick UC Riverside HBD Group Meeting

  5. hbdDetectorGeo Example Test macro to see hbdDetectorGeo is working properly. Seems to work okay, at least I get What I would expect. Sky Rolnick UC Riverside HBD Group Meeting

  6. hbdDetectorGeo Example Using intersectionLinePanel … still gives nonsense. Is it possible that padid’s are messed up somehow in database?? Sky Rolnick UC Riverside HBD Group Meeting

  7. Remaining Issues/Questions • How are PHPanel’s defined and are there ways I can draw them in root? • Is it the right thing to have hard coded pad_center or should this also be in the database? Sky Rolnick UC Riverside HBD Group Meeting

  8. New HbdCluster Object • Issues regarding sort() algorithm. • Was sorting on pointer address, tried implementing sort on padnum. (found by Tom/Benji.) • Keep getting … /home/phnxbld/new/source/offline/packages/hbd/HbdCell.h:60: using virtual function, doing nothing HbdCell Offending field == padnum • Seems that HbdCell::get_padnum is virtual function. • Not sure how to implement this? Sky Rolnick UC Riverside HBD Group Meeting

  9. HbdWisClusterizer • Separated out WisClusterizer from Ilia’s epair code. • Allowed for merging of clusters across sectors. • Created HbdWisDisplay for WisClusterizer. • Tested on run9 data for all 500 runs. • Small issue remains with cog for clusters defined across boundry. • Single/Double Rejection efficiency. Sky Rolnick UC Riverside HBD Group Meeting

  10. HbdHnSClusterizer • Small changes to HnS Clusterizer… • Uses hbdDetectorGeo.cc for coordinate transforms now. • Modified cuts for electron identification, now see the right number of electrons in events. • Uses PHCentralTrackv24, must have latest library so that it can be used with Wis or HnS clusterizers. • Still getting many problems related to detector geometry. Hub does not match with tracks, issues with cog calculation, etc. Sky Rolnick UC Riverside HBD Group Meeting

  11. Long Tedious road … • When I agreed to write algorithm for HnS I had no idea I would be fighting with so many issues regarding geometry. Sky Rolnick UC Riverside HBD Group Meeting

More Related