1 / 3

E906 update from Kun: 03/12/2012

E906 update from Kun: 03/12/2012. First beam delivered to E906 last Wed. Mar 7 th ! We now have high intensity protons hitting the front face of Fmag , but probably not quite well focused. The accelerator people are right now working on repairing the beam monitor near our target .

ronda
Télécharger la présentation

E906 update from Kun: 03/12/2012

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. E906 update from Kun: 03/12/2012 • First beam delivered to E906 last Wed. Mar 7th! • We now have high intensity protons hitting the front face of Fmag, but probably not quite well focused. The accelerator people are right now working on repairing the beam monitor near our target. • Chamber group found very noisy background in all the chambers even if the HV is off. • By studying time spectra of prop. tubes, Grass and I spotted a serious bug in the FPGA zero-suppression code, thus we spend a few days flashing all the TDCs to non-zero-suppression version. • For prop. tubes, since there is no meaningful data so far, all the prop. tubes are still running with HV set to 500V. In the past week, I fixed several dead/hot channels which is unseen before. Since last controlled access, we found a new hot channel in ST4H8, I'm about to go downstairs to take a look at it. • For software, we fixed a geometry problem and now the momentum resolution is improved from ~5% to less than 1%. The vertex fit is also implemented and the results are far better than what I shown during collaboration meeting. I'm planning to give a presentation in software group meeting some time in the next week.

More Related