RD27 note 23, 02 March 1994
An Analysis of the RD27 Level-1 Prototype
Calorimeter Trigger Processor Test Beam Data ---
April/May 1993
By Ulrik Dickow, NBI Copenhagen
Abstract
An analysis of data from a beam test of RD27's prototype, first-level
calorimeter trigger processor is presented. The data were taken in
collaboration with the RD3 liquid Argon ``Accordion'' electromagnetic
calorimeter group at CERN from 20 April to 08 May 1993.
The fluctuations in the pedestals are investigated,
from run to run, from event to event within a selected run,
and within single events in that run.
The major features can often be explained by the hardware configuration,
especially changes to it.
A significant cross-talk is found in the run which is analysed
event-by-event.
It affects all trigger channels connected to the calorimeter.
Additionally, the trigger output is briefly studied.
The present analysis was done as part of the CERN Summer
Student Programme 1993. It was supervised by Nick Ellis.
- Page 1 to 4
- Title page, table of contents etc., most of introduction
- Page 5 (fast preview)
- Two figures illustrating architecture and algorithm
- Page 5 (slow PostScript)
- As above, but for final quality printing
- Page 6 to 18
- The main text, approximately, including 7 plots
- Page 19
- Plot of actual and expected energy sums for a selected event
- Page 20 to 33
- Summary, acknowledgements and appendix
Ulrik Dickow (Ulrik.Dickow@nbi.dk)