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Portail > Offres > Offre UMR5821-CHRVEL-087 - Chercheur en dynamique faisceau pour les accélérateurs linéaires de forte puissance (H/F).

Post-doctoral Fellow in Beam dynamics for high power linear accelerators.

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : jeudi 27 mai 2021

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General information

Reference : UMR5821-CHRVEL-087
Workplace : GRENOBLE
Date of publication : Thursday, April 15, 2021
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 1 September 2021
Proportion of work : Full time
Remuneration : 2648,79 euros gross per month
Desired level of education : PhD
Experience required : 1 to 4 years


The Post-doctoral Fellow will conduct research to develop innovative tuning methods for high power hadron linacs in order to improve their performance, and in particular their reliability.
The main objective will be to develop an algorithm for the fault compensation of superconducting cavities and their associated system. This 'fault-recovery' concept has been developed by IN2P3 for the ADS project MYRRHA. It can also be applied to many linear accelerator: SNS, ESS and also the SPIRAL2 linac.
The Fellow will also participate in the commissioning of the SPIRAL2 superconducting linac on which the fault compensation algorithm could be tested. In this context, you will be required to travel occasionally to the GANIL laboratory in Caen and to work in shifts


Supervised by a Physisicst of the “Pôle Accélérateurs et Source d'ions” of LPSC, in collaboration with the team in charge of the operation of the SPIRAL2 linac and the international team in charge of the design of the MYRRHA linac, the Fellow will :
• conduct beam dynamics studies for the development of an algorithm for fault-recovery and tuning of superconducting linac,
• actively participate in the commissioning of the SPIRAL2 superconducting linac to optimise the setting of the machine, validate the beam dynamics models needed for the development of the fault-recovery algorithm,
• be in charge of improving the accuracy and the computational speed of the fault-recovery algorithm. In this goal You will carry out a study to assess the most appropriate method: 'machine learning' , genetic algorithm, artificial neural networks, etc.
• actively participate in scientific communication (publications, conferences),
• and depending on opportunities and availability, may contribute to other R&D programmes in which the Pole is involved, such as the commissioning of the MYRRHA injector .


• PhD in Physics or related disciple obtained less than 3 years ago .
• A solid background in accelerator physics and knowledge of lattice design codes for linacs (for example : TRACEWIN, TRACK, MADX,…) is expected.
• Practical experience on a running machine, on development of a prototype accelerator element or on beam diagnostics is also expected
• Programming skills (Matlab, Python, C++) would be an important asset
• Knowledge in artificial intelligence technics and associated optimisation algorithms would be appreciated.
• Good knowledge of English (working language for international collaborations and scientific communication) is essential
• The ability to work in a team in a multidisciplinary and international environment is essential.
• Be proactive, autonomous, organised and open-minded

Work Context

The Grenoble Laboratory of Subatomic Physics and Cosmology (LPSC) ( http://lpsc.in2p3.fr ) is a mixed research unit associating CNRS-IN2P3, Grenoble Alpes University (UGA) and Grenoble-INP school, for an average staff of about 230 people.
The post-doctoral fellow will be assigned́ to the Accelerators and Ion Sources Pole of LPSC. The group is composed of 18 agents and will be placed under the direct hierarchical authority of the head of the Pole.
He/she will work under the supervision of a researcher of the Pole in the framework of national and international collaborations.
For several years, the Pole has been working on the MYRRHA project dedicated to the study of the incineration of certain nuclear waste. Supported by the Belgian SCK CEN, MYRRHA is based on an intense proton linac (600 MeV, 4 mA). The group has worked on the beam dynamics of the linac on the one hand, and on the other hand, has developed innovative solutions for very rapid compensation of failures in the accelerator cavities of the superconducting linac to ensure the high level of reliability expected for MYRRHA.
The group is also involved in the commissioning and optimisation of the SPIRAL2 superconducting linac (Deutons, 40 MeV), currently underway at the GANIL site in Caen.

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