News

23-02-2017: WR Job vacancy at CERN

Added by Erik van der Bij on 23 Feb 2017 at 13:21

CERN has opened a vacancy for a job that is very much White Rabbit related:
Electronics and networking engineer

Furthermore another, more general HDL developer job is opened:
HDL Developer

06-09-2016: New papers

Added by Erik van der Bij on 06 Sep 2016 at 14:55

CSN1 Spanish TV

Added by Erik van der Bij on 27 Jun 2016 at 18:37

The visit of a CERN delegation to the Universidad de Granada and to the company Seven Solutions on 24 June was presented on the news of the Andalucía regional TV station CSN1.
The most notable star in the video was the white rabbit that was silently listening to the discussion while sitting on a White Rabbit Switch.

13-06-16: A job with White Rabbit

Added by Erik van der Bij on 13 Jun 2016 at 11:24

Workshop 14-16 March in Amsterdam

Added by Erik van der Bij on 28 Jan 2016 at 10:46

The Ninth White Rabbit Workshop will be held in Amsterdam from 14 to 16 March 2016 and is organized by NIKHEF.
If you're interested in meeting the developers and users, please find everything about it on the Ninth White Rabbit Workshop page.
Note that the no fees are charged.

Note that the presentations from previous workshops are available.
Many people responsible for the projects mentioned in the latest White Rabbit Newsletter will also be present in Amsterdam.

04-01-2016: Newsletter out

Added by Erik van der Bij on 04 Jan 2016 at 09:32

The yearly White Rabbit Newsletter is out.

15-12-15: Pickin’ up good vibrations in CERN Bulletin

Added by Erik van der Bij on 15 Dec 2015 at 11:50

In preparation for the civil engineering work on the HL-LHC at CERN, vibration measurements were carried out at the LHC’s Point 1 last month. These measurements help evaluate how civil engineering work could impact the beam, and will provide crucial details about the site’s geological make-up before construction begins.
...
Geophone sensors to measure vibrations in the ground were placed around the vibration sources at the surface, linked to the underground geophones using the LHC “White Rabbit” synchronisation network. This allowed the team to look at the effects of the vibrations at the same time.

Read more in the CERN Bulletin article Pickin’ up good vibrations.

07-12-2015: WR in deep sea: 3500m depth, 100km off coast

Added by Erik van der Bij on 07 Dec 2015 at 14:56

On 3 December 2015 a first line with 18 Digital Optical Modules, each one containing a White Rabbit PTP Core - WRPC, was deployed successfully and communicated over 100 Km of fiber with the shore station.
This installation is 100 km into the sea off the coast of Italy at 3500 meter depth and must be the weirdest and harshest place to install WR nodes.
This is a first step in the installation of KM3NET, a European deep-sea research infrastructure hosting a neutrino telescope.

See also:

12-11-2015: WR used in seismic measurements

Added by Erik van der Bij on 13 Nov 2015 at 11:21

CERN is trying to decide whether they can start Civil Engineering for the Hi-Luminosity project while the beam is on. The alignment of magnets is very delicate in the LHC and very slight variations thereof can produce beam instabilities. This is important because the potential impact on the overall schedule is big. The CERN EN-MME group has teamed up with the city of Geneva to have a shaker truck shake the ground and feel the impact down in the pit at point 1 (ATLAS), so as to have an indication of what to expect during real civil engineering work. The excitation and the sensors are separated by a few hundred meters, and they need to be synchronized, which is why they requested a WR link.

The WR team received the following report:
As it was planned in the best schedule, the first set of vibration measurements was performed on 12 November during core drilling operation at point 1. We took measurements for several depths 10,20,30,40,50 and 60m. Seismic sensors connected to spectrum analyzer in UJ16 were perfectly synchronized with the same equipment at the surface thanks to BE-CO team.

Equipment used in this project:

Other Users of White Rabbit Technology.

12-06-2015: first beam with WR based timing system at GSI

Added by Erik van der Bij on 12 Jun 2015 at 10:11

GSI in Germany reported that for the first time there is a beam in the injector of CRYRING at GSI controlled by a White Rabbit based timing system.
The White Rabbit system controls the beam chopper of the CRYRING linac section YRLE [1] and triggers the data acquisition of beam instrumentation to detect the signal of the pulsed beam after the chopper [2].

"This is an incredible milestone, reaching the destination that was envisioned seven years ago when the White Rabbit project was set up [3] ", Erik van der Bij said, "from the start, GSI, CERN and numerous partners from institutes and industry have been working in a tight collaboration to make this happen".

[1] https://www-acc.gsi.de/wiki/Timing/TimingSystemGroupsAndMachines#CRYRING
[2] https://www-acc.gsi.de/wiki/pub/Timing/WebHome/YRT1DC2_2015-06-09_16-28-26.049.png
[3] http://indico.cern.ch/event/28233/

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