Showing posts with label CERN. Show all posts
Showing posts with label CERN. Show all posts

Thursday, 17 September 2015

Wits participation in the ATLAS Tile Calorimeter demonstrator expert week: 7 – 11 September 2015

Last week Dr Oscar Kureba (Postdoc) and Charles Sandrock (Chief Technical Manager) of the Wits school of Physics took part in the expert week organized by the Tile Calorimeter group of ATLAS at CERN. The main goals of the expert week were: 

Electronics:
  • Debugging the problems and instabilities observed in the single clock domain firmware,
  • Measurements  and characterisation of the clock at the CDCE output on the DBs. Jitter, etc,
  • Integrate the Demonstrator/TPP into a  TTC/DAQ partition,
  • Insert the demonstrator into the module and  perform the inter calibration  with the Cs source.

Mechanics:
  • Follow up the construction of the lifting tools and the test qualification by CERN safety experts.

Oscar worked on the electronics while Charles was involved in the mechanics side. In a nutshell, it was a fairly successful expert week as nearly all the goals were met. The demonstrator tests gave the most impressive results to date. However, more still needs to be done in fine tuning of the firmware before the upcoming test beam period (7 – 21 October). Below are some pictures, just to give a feel of the proceedings throughout the said week.

Programme of the week

Men at work: Testing hardware and firmware of the super ReadOut Driver (sROD). 

TileCal front-end electronics demonstrator, before insertion into the Hadronic module for the performance of a Cs calibration

Some of the experts during one of the morning meetings to strategise for the day ahead. 


Friday, 15 May 2015

New ADC FMC board for PROMETEO manufactured in South Africa

Figure 1: Two fully assembled ADC FMC trigger boards for PROMETEO test-bench: Made in South Africa..

An improved version of the ADC FMC trigger board to be used in the PROMETEO test-bench has been in development at Wits University. PROMETEO is the next generation test-bench system that will be used for the full certification of the upgraded front-end electronics of the ATLAS's Tile Calorimeter at CERN.

The board was developed to filter and digitise analog trigger signals coming from the front-end electronics of the TileCal. It makes use of two ADC571 chips to sample 16 differential analog signals at 40 MHz using a 12-bit resolution.  A Xilinx VC707 dev-board with a Virtex-7 FPGA is used for the control and data read-out of the ADC board. The 16 data channels to the FPGA have a combined data rate of 7680 Mbps.

Two fully assembled ADC FMC trigger boards were delivered to Wits yesterday. Oscar Kureba and Matthew Spoor are currently in the process of testing the functionality of the boards. Matthew will be off to CERN next week, where integration of the board with the rest of the PROMETEO components will take place.

Friday, 10 April 2015

New ADC daughter board for the ATLAS TileCal PROMETEO test-bench

An improved version of the ADC daughter board used in the PROMETEO test-bench has been in development at WITS. PROMETEO is the new test-bench system that will be used for the full certification of the upgraded front-end electronics of the ATLAS TileCal.

The board was developed to filter and digitise analog trigger signals coming from the front-end electronics of the TileCal. It makes use of two ADC571 chips to sample 16 differential analog signals at 40 MHz using a 12-bit resolution.  A Xilinx VC707 dev-board with a Virtex-7 FPGA is used for the control and data read-out of the ADC board. The 16 data channels to the FPGA have a combined data rate of 7680 Mbps.

This week we received the newly manufactured PCBs which have since been sent off for assembly. Once final testing is completed the new board will be fully integrated into the ATLAS system.


Thursday, 13 November 2014

Press release: LAUNCH OF THE NEW PHYSICS HIGH-THROUGHPUT ELECTRONICS LABORATORY

MEDIA INVITATION FOR PR NEWSWIRE FROM CLIENT WITS UNIVERSITY

ATTENTION: NEWS EDITORS AND SCIENCE REPORTERS

DATE: THURSDAY, 13 NOVEMBER 2014

LAUNCH OF THE NEW PHYSICS HIGH-THROUGHPUT ELECTRONICS LABORATORY

The Wits School of Physics invites all media to the launch of the High-Throughput Electronics Laboratory (HTEL) this Friday, 14 November 2014.
This state-of-the-art new lab and facilities at Wits will be a platform for research and development of high-throughput electronics for the ATLAS detector at the Large Hadron Collider (LHC) at the European Organization of Nuclear Research (CERN). The laboratory is designed to deal with the Big Data problem related to the processing of large amounts of data needed to produce new discoveries, following the observation of the Higgs boson at the LHC.
This work would lead to the massive production of electronic devices by South African industry based on the designs developed at the High-Throughput Electronics Laboratory (HTEL).
Date: Friday, 14 November 2014
Time:  09:30 for 10:00
Venue:  P213 (Honours Presentation Room), School of Physics, Physics Building, Braamfontein Campus East
RSVP: Christina Thinane on 011 717 6848 or Christina.Thinane@wits.ac.za
All media are invited.

About the HTEL:
High-throughput electronics deals with the huge transfer of data at very high rates in challenging environments, such as those with a high level of radiation, possibly event upsets and other factors that may produce data corruption. To “read” this data, very fast decisions need to be made in order to select and modify the large amounts of data at high rates.
This laboratory will first of all serve the needs for upgrade of the ATLAS detector and more specifically, the Tile Calorimeter. This ATLAS sub-detector enjoys strong commonalities in the way data is transferred and how the off-detector electronics are designed.
But it is not only ATLAS that will benefit. South Africa’s flagship big science project, the SKA, also faces the same technological challenges related to high-throughput data flows with fast processing common to that of the ATLAS detector. Prototypes of fast-electronics and computing developed for the ATLAS detector could also be used by the SKA.
A spin-off of the design and prototyping work being done for the ATLAS project is the development of the Massive Affordable Computing (MAC) project. One of the limiting factors for harnessing large computing capabilities is the cost: High-performance computers are not cost-effective and need to be imported to the country. The idea behind this project is to develop prototypes for high-performance computing with cost-effective components for a very wide range of applications in research and industry. 
A first spin-off of the HTEL is the development of a mini-PC, catering to the needs of the educational system of South Africa. Few prototypes are currently available and are being tested at the HTEL. These incorporate power efficient and low-cost technologies. A number of these prototypes will be deployed to schools and universities in January-February for feedback. These mini-PCs could be manufactured in South Africa in quantities large enough to accommodate the needs of the educational system of the country.
Ends
Issued by:
Erna van Wyk
Multimedia Communications Officer | Wits Communications 
University of the Witwatersrand
Contacts: +27 11 717 4023 

Thursday, 10 April 2014

Announcement of Kruger 2014

WORKSHOP ON DISCOVERY PHYSICS AT THE LHC

KRUGER-2014

December 1 - 6, 2014

Protea Hotel Kruger Gate

Portia Shabangu Road, Skukuza, Mpumulanga, South Africa
Dear Colleagues

We are pleased to announce the Third  Biennial

   "Workshop on Discovery Physics at the LHC" (KRUGER 2014)
The Workshop will be held at the 4-star Protea Hotel Kruger Gate,
just 100 meters from the  entrance to the Kruger National Park.

Please find details in the conference web page
http://www.kruger2014.tlabs.ac.za
The conference aims to promote scientific exchange of new results
and development of
novel ideas and models related to the physics of the LHC.
The following topics will be covered:
 Particle Physics,
  Heavy Ion Physics,
 Physics  after the discovery of the  Brout-Englert-Higgs boson.
Accommodation, registration, abstract submission and other practical
details can be found
on the web page. Attendance will be limited to about 100 participants
because of the number of available  rooms in the hotel.

Students are encouraged to also take part in a related workshop/school on
  ``Hot and Dense Nuclear & Astrophysical Matter - HDM2014''
which will be organized by Professor Azwinndini
Muronga (amuronga@uj.ac.za)  at the University of Mafeking
November 24 - 28, 2014.

Other related events of interest to students are:
  ``Chris Engelbrecht School in Particle Physics'',
January 12 - 21, 2015,
and the
  ``High Performance Signal and Data Processing'',
January 26 - 30, 2015.
Limited funding for South African students is available.
We look forward to seeing you all in South Africa

The organizers of KRUGER-2014:

O. Boeriu (Witwatersrand, Johannesburg)  Z. Buthelezi  (iThemba LABS)

J. Cleymans (UCT, Cape Town) (Chair)  A. S. Cornell
(NITHeP/Witwatersrand, Johannesburg)

S. H. Connell (UJ, Johannesburg)  T. Dietel     (UCT, Cape Town)

S. Frtsch    (iThemba LABS)  N. Haasbroek  (iThemba LABS) (Secretary)

A. Hamilton (UCT, Cape Town)  W. A. Horowitz (UCT, Cape Town)

S. Karataglidis (UJ, Johannesburg)  B. Mellado  (Witwatersrand, Johannesburg)

E. Sideras-Haddad  (Witwatersrand, Johannesburg)  T. Vickey
(Witwatersrand, Johannesburg)

H. Weigert   (UCT, Cape Town)  S. Yacoob    (UKZN, Durban)

The email address of the conference is kruger2014@tlabs.ac.za




Wednesday, 5 February 2014

Nice article on the importance of the SA-CERN program

Nicola Mawson, from ITWeb has written a nice appraisal of the importance of the role of the South Africa - CERN program and its benefits to the country.

http://www.itweb.co.za/index.php?option=com_content&view=article&id=70626:SA-reaps-CERN-rewards

SA's involvement with the Large Hadron Collider (LHC), in Switzerland, is paying dividends as the country embarks on new electronics and physics projects, and benefits from knowledge gained at the European Organisation for Nuclear Research (CERN).
Thanks to collaboration on the project – the £2.6 billion "Big Bang" particle accelerator and the globe's largest experiment – South African universities are developing technology in fast electronics, supercomputing and plastics.
The LHC at CERN led to the discovery, in 2012, of what has become accepted as the elusive Higgs boson. This discovery is anticipated to catapult physics into a new era, as it will be able to probe previously untouched areas, such as dark matter and dark energy.
Click here
The Higgs particle – or boson – is named after Peter Higgs, who was one of six authors who theorised about the existence of the particle in the 1960s. It is commonly called the "God Particle", after the title of Nobel physicist Leon Lederman's "The God Particle: If the Universe Is the Answer, What Is the Question?", according to Wikipedia.
Locally, about 70 South Africans are involved in the global project and, while the team is small in comparison to those from other countries, there are substantial benefits coming out of its involvement.
Four universities are participating in the programme: the University of the Witwatersrand (Wits), University of Cape Town (UCT), the University of Johannesburg, and the University of KwaZulu-Natal.
Tom Dietel, a lecturer at UCT, says CERN is a flagship project and is expected to spark interest in science and physics.
Bruce Mellado, an associate professor at Wits' school of physics, says the tertiary institution is involved with projects to develop fast electronics, a new form of plastic, and create a cheap alternative for high-throughput supercomputing.
Mellado explains South Africans have been given the opportunity to tap into CERN's infrastructure at very little cost to the country. He says the country has been "given the benefit of a huge facility without having to pay hundreds of billions for it".
Professor Jean Cleymans, from the UCT's physics department, explains SA's involvement – mostly with the Atlas experiment – is a national project and is not specifically linked to any university. SA is also making contributions to the Alice and Isolde projects, he says. "It's important to have a first step in there."
Cleymans says SA's involvement gives young physicists access to technology, software being developed and knowledge.
Cleymans says "far from being limited to Europe", the project is a worldwide project to contribute to advances at CERN. SA's first step happened in 1992, when it signed its first agreement of interest, he notes.
Mellado explains one of the university's initiatives – named sRod – is a faster electronics board, which will be able to process much more data at faster rates. The board, being developed through collaboration in Europe and SA, is being made in conjunction with SA's Square Kilometre Array (SKA) team.
The multibillion-rand telescope project, hosted by SA, Australia and New Zealand, will collect a staggering amount of data as it probes the universe: the data collected by the SKA in a single day would take nearly two million years to play back on an iPod.
Mellado says the prototype board should be in production locally before winter, which will be a "major milestone for SA". He explains there are increasingly large amounts of data to be analysed, but the price for the hardware is currently a "showstopper".
Being able to get university-made technology commercialised will drop the cost and allow SA's technology industry to develop further, says Mellado. "That's the key to further development."
Wits is also developing a supercomputer under its Mass Affordable Computing project, which Mellado says takes the technology from smartphones and uses it for generic applications such as telecoms and computing. This programme will also be used to aid the SKA's data processing needs. "We can proudly say that we are doing it here."
Such projects are critical to SA's science, says Mellado. "Everything now depends on data processing."
The university is also developing – in collaboration with Sasol – plastic scintillators, with a prototype due in a year or two. Mellado says this material will allow the absorption of light.
The South African consortium launched in 2008 and a few ministerial delegations have visited CERN, says Cleymans. SA's contribution is hosted by iThemba Laboratories, which is a national open laboratory, he adds.
The Department of Science and Technology is funding SA's contribution, says Cleymans, adding that CERN is the first project that has seen South African physics departments team up to collaborate.
CERN is currently temporarily offline in a bid to increase its capacity and explore unknown aspects of physics. In the meantime, South African scientists are helping analyse the data it has collected and are aiding with maintenance.
The experiment will run until 2030 and will be upgraded to 10 times its initial design specification, with the ability to collect 100 times more data.

Friday, 15 November 2013

Prototype of LED board for the front-end electronics test-bench of the ATLAS TileCal

The first certified prototype of the LED board for the front-end electronics the new test bench of the ATLAS TileCal is now available at Wits.

Expect next and final iteration next week and delivery to CERN early December.




Tuesday, 12 November 2013

First attempt to integrate Back-end and Front-end for the TileCal upgrade

Today we attempted for the first time to integrate the Back-end and Front-end of the new upgraded TileCal electronics. Work performed in collaboration with IFIC, Stockholm University, University of Chicago, Argonne National Laboratory and CERN. In the picture one can see the daughter board that will sit on the detector, connected with FPGA evaluation boards that serve as simulators of the future sROD.