| No | Supervisor | Area | Project Title | Students |
|---|---|---|---|---|
| 1. | Aleksandar.Aleksandrov@cern.ch | Physics - CMS experiment |
Title: CMS RPC detector and gas system operation and monitoring Description: The students will be introduced to the RPC detector including detector control system (DCS) and gas control system (GCS). The RPC equipment including HV system and the gas distribution system located in Underground Service Cavern (USC) will be shown. The task consists of development of an efficient algorithm to spot new gas leaks into RPC gas system. |
1. Dimitar Tomov 2. Rusko Ruskov |
| 2. | Dinko.Atanosov@cern.ch | Physics - ISOLDE experiment |
Title: High-precision mass measurements of radioactive isotopes Description: The students will work at the ISOLTRAP experiment located at the radioactive ion-beam facility ISOLDE/CERN. ISOLTRAP is a high-precision mass spectrometer, which uses ion traps to measure the masses of short-lived radioactive isotopes for nuclear structure, astrophysics and weak-interaction studies. Currently, the ISOLTRAP team uses Time-of-Flight Ion-Cyclotron-Resonance, Multi-Reflection Time-of-Flight Mass Separation and Phase-Imaging Ion-Cyclotron-Resonance measurement techniques for the precision determination of the atomic masses of interest. During the period of the internship program, students will have the opportunity to get familiarized with Penning traps and Multi-Reflection Time-Of-flight devices and employ the above mentioned techniques to operate them. This will provide general training in ion-beam optics and transport as well as charged-particle traps, ultra-high vacuum systems, high-precision timing and control systems, and various type of detectors (such as position-sensitive micro-channel plate and electron-multiplier). Furthermore, they will be involved in an upcoming on-line test run, which main goal is to determine the yield and release of neutron-rich titanium and scandium isotopes. In addition, students will get acquainted with the operation and the wide range of physics experiments performed at the ISOLDE facility. |
1. Elena Stoeva 2. Stafan Ivanov |
| 3. | Physics - ALICE experiment |
Title: Methods and tools enabling the distributed computing in ALICE Description: The students will be introduced to the principles of distributed computing, providing CPU and storage needed to process and analyze hundreds of petabytes of data generated by the LHC. They will be shown some of the software tools used in the ALICE distributed computing infrastructure and will work with the developer of the next-generation software used to synchronize the work of hundreds of computing centres worldwide |
1. Dzhemma Ruseva 2. Nina Dimova
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| 4. | Cvetan.Cheshkov@cern.ch Roberto.Preghenella@bo.infn.it |
Physics - ALICE experiment |
Title: Physics simulation in the ALICE experiment Description: The students will learn the basics of the physics simulation used in a large modern experiment. They will be shown some of the cutting-edge tools used for this work and will have the opportunity to visualize simulated events in ALICE, which are used by the physicists in their data analysis. |
1. Nia Vasileva 2. Anton Uzunoff |
| 5. | Anton.Dimitrov@cern.ch | Physics - CMS experiment |
Title: CMS RPC Detector and RPC HV Conditioning Study Description: The students will be introduced to the CMS RPC detector and its principle of operation. They will have the opportunity to get acquainted with the hardware and equipment and participate in detector equipment maintenance during the LHC machine development period. In addition, they will be able to perform a software analysis on the HV conditioning data of 781 HV channels, plot their VA characteristics, fit the ohmic part of the curves and evaluate the Resistance of each channel. If time allows, they can be asked to prepare the Resistence evolution per HV channel in time. |
1. Aleksandar Georgiev - Varna 2. Feodor Konomaev |
| 6. | Ivan.Glushkov@cern.ch | Physics / IT - ATLAS experiment |
Title: ATLAS GRID Operations and Monitoring Description: The students will get to be part of distributed computing operations of the biggest high-energy physics experiment - ATLAS. The concepts and technologies needed for operation of 500 000 computing cores used by 3000 users will be discussed. A development of a toy-monitoring for 19 000 core computing farm will be developed. |
1. Zvezdin Besarabov 2. Nikolay Kolev |
| 7. | Roumyana.Hadjiiska@cern.ch | Physics - CMS experiment |
Title: CMS RPC operation and efficiency simulations Description: The students will be taught in the main principal of the operation of the Resistive Plate chambers (RPC) and the base technique for analyzing the data. The students will be involved in a simulation of a small MC sample using CMSSW (CMS Software), including all the simulation steps starting from event generation up to the reconstruction step. The obtained sample will be used to evaluate the predicted hit efficiency of the RPC chambers. If the time allows, the MC results will be compared to the experimentally obtained ones. The exercise will allow students to learn in details the main detector characteristics of the RPCs and some base analysis concepts. |
1. Tsvetelina Stefanova 2. Viktor Baltin |
| 8. | Peter.Hristov@cern.ch | Physics - ALICE experiment |
Title: Looking for strange particles in ALICE Description: The students will search for strange particles, produced from collisions at LHC and recorded by the ALICE experiment. The task is based on the recognition of their V0-decays, such as Kos → π+π-, Λ→ p + π- and cascades, such as Ξ- → Λ + π- ( Λ → p + π-). The identification of the strange particles is based on the topology of their decay combined with the identification of the decay products; the information from the tracks is used to calculate the invariant mass of the decaying particle, as an additional confirmation of the particle species. The students will get acquainted with the ALICE experiment and its physics goals and then the physics motivation for this analysis. The method used for the identification of strange particles as well as the tools will be described in detail. |
1. Dobrin Barakov 2. Chavdar Lalov |
| 9. |
Tsvetelin.Krastev@cern.ch , Todor.Ivanov@cern.ch |
Engineering / IT - Accelerators & Technology Sector CMS Computing |
Title: Computer-Aided Design, Enterprise Asset Management and Engineering Data Management for the LHC accelerator
Description: Discover the Computer-Aided Design (CAD), the Enterprise Asset Management (EAM) and the Engineering Data Management (EDM) systems that are used for the design and follow-up of the building, installation and maintenance of the Large Hadron Collider (LHC) and future accelerators at CERN. Title: Introduction to CMS Computing Infrastructure |
1. Aleksandar Georgiev - Haskovo 2. Ivan Ganev |
| 10. | Bozhidar.Panev@cern.ch | Engineering - Accelerators & Technology Sector |
Title: The Quench Protection System for the LHC accelerators Description: The students will learn about the quench protection systems of the LHC superconducting circuits – why such systems were built and what they do. The quench phenomenon will be discussed as well as the methods used at CERN to fight against it. The focus will be put on the energy extraction facilities as a part of the quench protection mechanism. There will be a lab demonstration. The real time monitoring of the systems operation in LHC will be shown. As a practical part: At the end the students will develop a small Labview application to extract the temperature values of the energy absorbers from the LHC logging data base. |
1. Martin Grigorov 2. Marko Ivanov |
| 11. |
Todor.Ivanov@cern.ch |
Physics - CMS experiment
CMS Computing |
Title: Physics analysis at the CMS experiment Description: The students will be introduced to the basics of physics analysis at the CMS experiment. They will be shown some of the tools used to visualize and analyze the data. As an exercise, the students will reconstruct the Z boson and, if time allows, other particles from their decay products. |
1. Simona Todorova 2. Kaloyan Botev |
| 12. | Zhechka.Toteva@cern.ch | IT - CERN Computing |
Title: Studies on open-source systems for secrets storage Description: The students will be introduced to the CERN computer centre management infrastructure. Namely, the automation of the CC with Puppet and the software components for managing and distributing of secrets and certificates on the host. The students will execute a study on couple of potential replacements of the the secrets' storage tools. They will have the task to install the tools, configure them and carry over tests of different data encryption techniques and interfaces with the existing infrastructure. |
1. Irina Hristova 2. Dimitar Oparlakov |
| 13. | Todor.Trendafilov.Ivanov@cern.ch | CMS Computing |
Title: Introduction to CMS Computing Infrastructure Description: The students are going to be introduced to the grid technology and how it is utilized in the CMS experiment, the computing infrastructure that lies beneath the complicated software packages used for physics analysis, and the submission tools developed for aiding the work of the physicists |
