CERNProbably one of the most incredible experiments in the world!

Rende Steerenberg, CERN SwitzerlandBeams Department, Operations Group

Technology at CERN• Computing/IT• Vacuum & cryogenics• Cooling & Ventilation• Electronics• Electricity• Magnets• Mechanics• Material Science• Radiofrequency• Control Systems• Safety • Civil Engineering• …

~ 200 positions/year

FIELDS : applied physics, engineering, computing

LENGTH : 4 to 12 months

ELIGIBILITY : 18 months of technical undergraduate

studies

FEATURES : a technical project with a CERN supervisor

a living allowance, incl. health insurance

Technical Students program

“It’s a great place to start a career,

it’s a great place to learn new skills,

make new friends…”

Next application deadlines:28 April 2015

30 October 2015

Technical Student Project Example

• Field: Electronics Engineering (Beam Instrumentation)

• Title: Development of a fast image readout system for the PS Ionisation Profile monitor

• Description: A novel electron detection system has been proposed for PS ionisation profile monitor, based on a silicon pixel detector and Timepix3 chip. The speed at which the system produces data requires an FPGA for data collection, compression and retransmission via an optical link. The subject of this project is the development of FPGA code allowing such a readout and test of the system with an electron source in vacuum.

A Beam Profile Measurement Technique

Why another technique ?

• A proton beam in the LHC contains a very small amount

of matter (<1 ng = one human cell) moving almost at

speed of light

• It carries energy of a TGV at full speed

• The transverse size is about 0.1 mm (like a hair)!

• How to measure the size of such object ?

• Any material object (e.g. wire) will be destroyed, hence

no beam intercepting devices can be used…

Ionisation Profile Monitor

Beam gas ionization profile monitors, measure the transverse beam size by detecting the position of products of rest gas ionization. Electrons produced are directed using electric and magnetic fields towards a phosphor screen which is observed by a camera. An image of the beam is registered and beam profile calculated

Magnet

Concept: Magnet

Some assignment information

• The described project forms a vital part of a bigger project.

• The student is employed for a period of 12 months

• The supervision of the project and the student is ensured by a CERN

staff member, highly specialised in beam profile measurements

• Deliverables:

• FPGA code

• Test setup to be constructed with electron source in vacuum

• Master degree report for University and CERN

• Opportunities for the student:

• Project presented at conference in USA (HB2014)

• Official publications in conference papers as main or co-author

• Participate in FPGA course, accelerator physics course, language courses, etc. (paid by CERN)

Some quotes from a student

“I spent the last year of my master studies working as a technical student at CERN. Being a mechanical engineer I had never worked with cryogenics before, nevertheless I was chosen to work in the Cryolab – CERN Central Cryogenic Laboratory. It was an entirely new world for me, but fortunately nobody expected me to know everything and I was given a chance to learn.“

“I was operating a device called Dilution Refrigerator, which can reach the temperature of only 10 mK – just above the absolute zero. I was involved in the heat transfer analysis between the Ultra Cold Electrodes used in the AEgIS project and the Mixing Chamber of the mentioned Dilution Refrigerator. AEgIS – “Antimatter Experiment: Gravity Interferometry Spectroscopy” is going to measure the influence of a gravitational field on anti-hydrogen using the cutting edge technology. Exciting, isn’t it ?”

“The atmosphere of work at CERN is quite exceptional. It’s probably the most multicultural and cosmopolitan place in the world. You can meet a lot of passionate people sharing the same interests as you, learn their languages and get more familiar with their cultures.”

• Joanna, now PhD student at CERN

Mixing chamber Dilution Refrigerator

Some quotes from a student

“During this year I was working together with my colleagues on the AEgIS experiment. This experiment needs large and very homogeneous magnetic fields in order to trap anti-protons

and help in the formation of an anti-hydrogen beam, ….“

“…. My work focused on the testing of the magnets at 4.2 K, but also their preparation before the test. After the tests of the magnets we continued with the assembly of the final vacuum vessels. This included the installation of the required instrumentation, leak-testing of the vessels, and various other task of preparatory character. After the assembly the magnets were cooled-down for the first time in their final position and first measurements with an anti-proton

beam have been performed…. ”

“During my work I enjoyed working in a multi-national environment with people from all over Europe. And seeing an experiment build from the ground up. Starting with tests of small components and seeing everything build together in the final experiment.”

• Tiemo, now PhD student at CERN

The Magnet The Magnet in the

AEgIS experiment

Technical Students program: ~ 200 positions/yearAdmin Students program : ~ 30 positions/yearDoctoral Student program : ~ 60 positions/year

28 April 201530 October 2015

Fellowship program : ~ 180 positions/year19 May 2015

17 November 2015

CERN Staff positions : ~ 180 positions/year

Next application deadlines:

Next application deadlines:

Any time of the year, check the web

Careers website

cern.ch/jobs

New Initiative• CERN Ambassadors

• Create a network of CERN Ambassadors among lectors in Universities and Engineering schools

• Lectors & teacher participate in workshops with targeted information sessions on CERN technology and an overview of all related vacancies

• First event tentatively March 2015 on electronics

• More info: Michel Guye-Bergeretmichel.guye-bergeret@cern.ch

CERN Jobs Group is everywhere, follow us !

What do I get?

• Be at the forefront of technology and physics

• Collaborate with multicultural and multidisciplinary teams, without political or religious barriers

• Follow experts in their technical domain

• Be part of a dynamic environment with training opportunities

• Make valuable and long-lasting contacts from all over Europe ( and world)

• Learn languages: CERN is a bi-lingual organization (English and French)

• Attractive remuneration package

…any questions?

Thanks!