Yes
thats right my friends, my time here in Switzerland is almost done!
On Friday the 13
th of July at 17.30
CET I will cease to be employed by
CERN, I will cease to work for the PH/AID department, I will cease to be a Technical Student and I will be going home!
Work has been pretty manic over the last week or two. The project that I have been working on for the last few months is called
TPCC [Time Projection Chamber Configuration], This project is entirely my own work and I was given a great deal of freedom with the design and implementation. I'm happy to report that
TPCC was recently used intensively in the testing of 8 chambers (1/4 total) of the
TPC here at
CERN.
TPCC, is an extremely decoupled system with multiple entry points that was designed to be used in undefined environments to manipulate front end electronics via the "
DDL" which is a full duplex fiber link. It uses a server, client and a control system. Each client listens for commands from the server and performs various functions, in parallel using restricted linear recursion to attempt to transparently recover from errors (after all, these electronics are pretty new)!
The officially
preferred system for configuring the
TPC is using something called the
DCS or Detector Control System though I'm pleased to report that it was
TPCC that was used just last week for the
commissioning of the
TPC. This involved very intensive testing of my software, and I'm glad to say that apart from two (related) bugs which were fixed on site, it performed very well and has been praised by people far above my pay grade - apparently they were rather surprised when informed the system was designed and implemented by a student in a few months!
The scary thing for me is the data that was used to do the configurations.
After all, this is the data that scientists will crawl over now to clarify that the
TPC is working correctly and that it is ready to "go live" when the real experiment starts. The configuration data (were talking configuration data for well over a million sensors here) was also created by me. In one night, hacking away writing a little program in C that spits out (currently) 160,000 Lines of
SQL for insertion into the database. This data isn't checked or validated by anyone and whilst the (vain) student in me
rejoices at the
opportunity the engineer in me shudders.
I consider myself very lucky to be at
CERN, I'm one of five Britons picked to be here this year. I consider myself even more lucky to be working in PH/AID and the project that I am involved with. My work is being discussed at high levels and has real potential to make a genuine contribution to the development of the Time Projection Chamber and high energy physics. I'm not sure where the credit ends up for all this but so long as part of it rubs off on me, I'm happy.
Thank you
CERN
