Bulgarian High-School Students Internship Programme 2017

Session

Projects

15 Sept 2017, 09:00

3/R-002 - Teacher Training Room (CERN)

49. Physics Analysis at the CMS Experiment

Mr Kaloyan Botev, Mrs Simona Todorova

15/09/2017, 15:00

Introduction to the basics of physics analysis at the CMS experiment. Some of the tools used to visualize and analyze the data CMS data are used.
The students have reconstructed the Z boson and other particles from their decay products.

50. The Quench Protection System for the LHC accelerators

Mr Marko Ivanov, Mr Martin Grigorov

15/09/2017, 15:15

Quench protection systems of the LHC superconducting circuits overview – why such systems were built and what they do. The quench phenomenon is discussed as well as the methods used at CERN to fight against it.
The focus is on the energy extraction facilities as a part of the quench protection mechanism.
The students have developed a small Labview application to extract the temperature values...

51. CMS RPC Detector and Gas System Operation and Monitoring

Mr Rusko Ruskov

15/09/2017, 15:30

Introduction 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) is discussed. Development of an efficient algorithm to spot new gas leaks into RPC gas system is introduced.

52. Monte Carlo modelling using CMSSW

Mr Dimitar Tomov, Mrs Tsvetelina Stefanova, Mr Viktor Baltin

15/09/2017, 15:45

The main principal of the operation of the Resistive Plate chambers (RPC) and the base technique for analyzing the data is discussed. The 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 is used to evaluate the predicted hit efficiency of the RPC chambers. The MC...

53. Open Source Systems for Secrets Storage

Mr Dimitar Oparlakov, Mrs Irina Hristova

15/09/2017, 16:00

Introduction 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. A Study on couple of potential replacements of the the secrets' storage tools. Installation and configuration of the tools, tests of different data encryption techniques and interfaces...

54. Introduction to CMS Computing Infrastructure / Computer-Aided Design, Enterprise Asset Management and Engineering Data Management for the LHC Accelerator

Mr Alexandar Georgiev, Mr Ivan Ganev

15/09/2017, 16:15

Project 1: Introduction 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.

Project 2: Introduction to the Computer-Aided Design (CAD), the Enterprise Asset Management (EAM) and the Engineering...

55. CMS RPC Detector and RPC HV Conditioning Study

Mr Aleksandar Georgiev

15/09/2017, 16:40

Introduction to the CMS RPC detector, its principle of operation, hardware and equipment. Detector equipment maintenance during the LHC machine development period. A software analysis on the HV conditioning data of 781 HV channels was performed and their VA characteristics plotted, fitting the ohmic part of the curves and evaluate the Resistance of each channel. Resistance evolution per HV...

56. High-precision mass measurements of radioactive isotopes

Mrs Elena Stoeva, Mr Stefan Ivanov

15/09/2017, 16:55

ISOLTRAP is a high-precision mass spectrometer at the radioactive ion-beam facility ISOLDE/CERN, 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...

57. ATLAS GRID Operations and Monitoring

Mr Feodor Konomaev, Mr Nikolay Kolev, Mr Zvezdin Besarabov

15/09/2017, 17:10

Overview of the 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 toy-monitoring for 19 000 core computing farm was developed.

58. Physics simulation in the ALICE experiment

Mr Anton Uzunoff, Mrs Nia Vasileva

15/09/2017, 17:25

Basics of the physics simulation used in a large modern experiment. Cutting-edge tools were used for this work. Visualization of simulated events in ALICE, which are used by the physicists in their data analysis.

59. Methods and tools enabling the distributed computing in ALICE

Mrs Dzhemma Ruseva, Mrs Nina Dimova

15/09/2017, 17:45

Introduction to the principles of distributed computing, providing CPU and storage needed to process and analyze hundreds of petabytes of data generated by the LHC. Demonstration of software tools used in the ALICE distributed computing infrastructure and development work of the next-generation software used to synchronize the work of hundreds of computing centers worldwide.

60. Looking for strange particles in ALICE

Mr Chavdar Lalov, Mr Dobrin Barakov

15/09/2017, 18:05

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...

13. Introduction

14. Presentation 1

15. Presentation 2

16. Presentation 3

17. Presentation 4