Differences

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

--- itk:testbeam [2016/09/30 13:53]
asc [Plots without calibration]
+++ itk:testbeam [2016/10/04 15:11] (current)
asc
@@ Line 1: / Line 1: @@
-======  Pixel module test beam ======
+======  Pixel module test beam at SLAC ======
-(prepared by S.Chekanov)
+(some notes by S.Chekanov)
 Here are the useful links on test beam in Sep. 2016 at SLAC. The plan is discuses  [[https://twiki.cern.ch/twiki/bin/viewauth/Atlas/ITkPixelTestBeamSLACSep2016|on this wiki at SLAC]].
-What is used: 11 GeV secondary electrons (~100 - 200 per bunch), 5 HZ frequency. Original electron beam is 14 GeV.
+What is used: 11 GeV secondary electrons (~10-100  per bunch), 5 HZ frequency.
+The beam sport is about 1x1 cm (tunable).
+ Original electron beam is 14 GeV.
 The setup is described in [[https://confluence.slac.stanford.edu/display/Atlas/TestBeam| Setup at SLAC]].
 To start the run, use:
@@ Line 19: / Line 21: @@
 Details on 2 tests:
-) Testing RTI (USA vendor) to test bum bonding.  We use  2 V for low voltage and max 0.5 A. We set -80 V as bias voltage for RTI (FE-I4B) board.
+) Testing RTI (USA vendor) to test bump bonding.  We use  2 V for low voltage and max 0.5 A. We set -80 V as bias voltage for RTI (FE-I4B) board.
@@ Line 27: / Line 29: @@
   * Readout ASIC with 65 nm (vs 130 nm for FE-4IB). This decrease of ASIC leads to smaller sizes.
+Here is the setup at the end-station A:
-====== How to make calibration ======
+This is the  RTI module (uncovered):
+{{:itk:img_20160928_103349.jpg?400|Setup}}
+This is the  RTI module + RD53 prototype (uncovered):
+{{:itk:img_20160928_100735.jpg?400|Setup}}
+Telescope:
+{{:itk:img_20160927_142154.jpg?400|Telescope}}
+Control room upstairs:
+{{:itk:img_20160930_071901.jpg?400|Control room}}
+====== How to calibrate the module ======
@@ Line 155: / Line 174: @@
 <code bash>
-/home/tbsclac/pixelrce/rce/moduleconfigs/RTISC2B/config/RTISC2B__cern__158.cfg # from 6.15 AM
+/home/tbsclac/pixelrce/rce/moduleconfigs/RTISC2B/config/RTISC2B__cern__225.cfg # from 7.00 AM
 </code>
@@ Line 176: / Line 195: @@
-Both modules from RTI have  shown signs of degradation performance. After about ~6-8h, we start to see problems for the analog
+Both modules from RTI have  shown signs of degradation in performance. After about ~6-8h, we start to see problems for the analog readout. The occupancy for analog channel efficiency for  uncalibrated module goes from 99% to 70% after 6h. The noise increases by a factor 2.
-channels. The occupancy for uncalibrated module goes from 99% to 70% after 6h. The noise increases by a factor 2.
+This problem is not related to the active beam, since the red module was not under the beam on Sep 28.
-This problem is not related to the active beam, since the red module was not under the beam in Sep 28.

ATLAS Support Center

User Tools

Site Tools

Differences

Page Tools