1 / 12

HBD Update Bill and Ted’s Excellent Adventure

HBD Update Bill and Ted’s Excellent Adventure. T.K. Hemmick for the Wyld Stallions. Status. Excellent water and oxygen, Dude!. West. East. Will use 5 lpm during run. 3 lpm. 2 lpm. Scintillation used to get Gain. Fit to Gaussian + Exponential. Gain from:

elvism
Download Presentation

HBD Update Bill and Ted’s Excellent Adventure

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 UpdateBill and Ted’s Excellent Adventure T.K. Hemmick for the Wyld Stallions

  2. Status Excellent water and oxygen, Dude! West East Will use 5 lpm during run 3 lpm 2 lpm

  3. Scintillation used to get Gain • Fit to Gaussian + Exponential. • Gain from: • Use ADC gain from manual (pC/channel) • 2000 e’s/mV from pre-Amp • Checks with 55Fe to ~10%

  4. Gains Normalized for P/T • Using the curve above we can deduce the normalization factor to determine the gain at P/T = 2.560 • This was different from running conditions: • Bill <P/T> = 2.596 • Ted <P/T> = 2.606 • This is within expected range of operation.

  5. Bill S. Preston, esq.

  6. Ted Theodore Logan

  7. Cosmic Studies • We believe that the starting points for operation in PHENIX are now well enough defined that we’re ready for Run-9. Excellent!!!

  8. P/T Corrections: • We will have to track P/T variations carefully. • In the past month, the extremes of P/T would change the HBD gain by a factor of 1.98. • Auto-adjustment scheme under consideration: • Finite set(s) of conditions. • Change voltages between runs. P/T=2.627 P/T=2.525

  9. INSTALLATION IN PHENIX Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 9th, 2008 • December 8th, 2008 – 4PM EST :: HBD HV Control & Monitoring System successfully installed in PHENIX • Due to the HBD Simulation Project, the installation process without big complications! • TS5 has been powered up and connected to the HBD mainframe on the bridge. • The mainframe rack which is shared with the RXNP guys, has been powered up. • ALL 6 Run9-modified 1471Ns, which have been crash tested and prepared for installation since last Thursday continuously day & night, were installed in the 1458HP mainframe. • ALL 40 channels (GEMs & Mesh chn) have been ramped up and measured via Fluke by controlling them one by one through the HV Control System, which was run on a laptop connected to the PHENIX wireless. • The installation channel check procedure automatically ramped & disabled channel by channel after measurement. • The channel check has been completely successful!!! HBD HV Control & Monitoring System Manuel Proissl Page 3 of 6

  10. INSTALLATION IN PHENIX Upgrades For Run9 | PHENIX, BNL HBD HV Control System HBD Meeting :: December 9th, 2008 Channel Check on the Bridge View onto the HBD from HV Bridge HBD HV Control & Monitoring System Manuel Proissl Page 4 of 6

  11. Cube Measurements • Some bogus news. • Apparently the microdot connector inside Ted is damaged. • Despite this trouble, Bob sees peaks both for scintillation and 55Fe from the measurements. • Cube will still make measurement, just not as clean.

  12. Job List • Cabling • Excellent Progress • Done Monday • Apply Voltage: • Use CF4 for real test • Use NIM module (CAEN) • Current-limiting mode. • New HV system still testing. • Few days starting early next week. • Vlad-in-charge. • Finish commissioning of new HV system.

More Related