Hardware-Software Complex “Virtual Laboratory of Nuclear Fission” for LIS Experiment (Flerov Laboratory of Nuclear Reactions, JINR) NEC’ 2015.

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Hardware-Software Complex “Virtual Laboratory of Nuclear Fission” for LIS Experiment (Flerov Laboratory of Nuclear Reactions, JINR) NEC’ 2015

Project Team Hejdar Agakeshiev 1, Yuri Averichev 1, Victoria Belaga 1,6, Evgeny Dolgy 6, Przhemik Duda 7, Evgeniya Golubeva 1,4, Jan Grabsky 7, Dmitrii Kamanin 1, Ksenia Klygina 1,2, Pavel Kochnev 1,6, Anna Komarova 2,4, Phumezo Kwinana 5, Olesia Lushina 2,4, Vusi Malaza 3, Noel Mkaza 3, Yury Panebrattsev 1,2, Liudmila Platonova 1, Yury Pyatkov 4, Pavel Semchukov 1,4, Nikita Sidorov 1,2, Alexander Strekalovsky 1, Oleg Strekalovsky 1, Gennady Yarygin 1, Daria Zhuravleva 2,4 1. JINR, Dubna, Russia 2. InterGraphics LLC, Dubna, Russia 3. Stellenbosch University, Stellenbosch 7600, South Africa 4. National Nuclear Research University MEPHI, Moscow, Russia 5. The University of Fort Hare, Alice 5700, South Africa 6. Dubna University, Dubna, Russia 7. Warsaw University of Technology, Warsaw, Poland

The goal of the Virtual Laboratory of Nuclear Fission The goal of the project is the integration of technological elements of modern science into the educational process, carrying out labs based on combination of real equipment, virtual and online laboratory research using data obtained from the existing physical facilities.

As a first step we have chosen an actual scientific problem – the study of spontaneous fission using the spectrometer LIS from Flerov Laboratory of Nuclear Reactions, JINR LIS setup with timestamp detectors based on MCP Light Ions Spectrometer

Project Stages 1.Hardware-software complex “Virtual laboratory of nuclear fission”: – Software “Virtual laboratory” – Practicum with real equipment 2.Interactive environment for nuclear physics experiment design 3.Development of the project in the format of Massive Open Online Courses (Coursera, edX)

The project is comprised of three educational levels: Elementary level. A typical target group at this level are high school students, science teachers, undergraduate students and participants of summer practices. Basic level. The goal at this level is to study various types of radiation detectors, nuclear electronics & DAQ and some important methods of experimental data processing. Advanced level. A typical target group at this level are students who plan to prepare their bachelor and master theses based on the measurements at the LISSA project. This level may be useful as a training before independent work as experimentalists in nuclear physics.

Input knowledge Elementary level: high school physics Basic level: university course on general physics; section “Nuclear Physics” Advanced level: university courses “Quantum Physics” and “Nuclear Physics”

Project content About : Virtual Laboratory of Nuclear Fission Part 1: Some Concepts of Nuclear Physics Part 2: How to Measure Radioactivity Part 3: Theoretical Models of the Atomic Nucleus Part 4: How to Measure Nuclear Fission Part 5: Light Ions Spectrometer – Measurements Part 6: Light Ions Spectrometer – Data Analysis Interactive environment for nuclear physics experiment design

Real equipment LabView Practicum types Virtual labs Remote labs

Part 1. Some Concepts of Nuclear Physics 1.Introduction 2.Proton-Neutron Nuclear Model 3.Mass – Energy – Momentum 4.Nuclear Energy: Fusion and Fission 5.Radioactivity: Alpha Decay Beta Decay Gamma Decay Spontaneous Fission 6.Radioactive Decay Law 7.Quiz 8.Exercises

Exercises for experimentalists

Part 2. How to Measure Radioactivity 1.Introduction 2.Radioactive Sources 3.Interaction of Radiation with Matter 4.Radiation Detectors: Gas-Filled Detectors Scintillation Detectors PIN Diodes Detectors Based on Microchannel Plates 5.Measurement of Radioactivity 6.Quiz 7.Practicum

Practicum Skills: 1.Work with oscilloscopes and pulse generators 2.Work with scintillation detectors (NaI, CsI, plastic) 3.Measurements and spectrum analysis 4.Coincidence method and registration of cosmic particles

Remote labs In collaboration with the Warsaw University of Technology the remote lab for studying of attenuation of gamma radiation was implemented.

Part 3. Theoretical Models of the Atomic Nucleus 1.Introduction 2.Nuclear Models 3.Quantum Mechanics in Nuclei 4.Fission and Quantum Tunneling 5.Basic Regularities of Spontaneous Fission 6.Collinear Cluster Tri- Partition (CCT) 7.Quiz 8.Exercises

Part 4. How to Measure Nuclear Fission 1.Introduction 2.Physics of Binary Fission 3.Methods of Detection of Fission Fragments 4.Energy Measurements of Fission Fragments 5.Time Measurements of Fission Fragments 6.Quiz 7.Practicum

Part 5. Light Ions Spectrometer – Measurements 1. Physical Motivation 2. LIS Setup 3. Electronics of the LIS Setup 4. Block Diagram and Data Acquisition System 5. CAMAC Practicum 6. PIN Diode Calibration 7. Time of Flight Calibration 8. LIS Manual

Light Ions Spectrometer – Practicum Skills: 1. Vacuum system preparation 2. Measurements of PIN diode signals from the alpha source 3. Measurements of thin foil thickness and Bragg's peak obtaining

Part 6. Light Ions Spectrometer – Data Analysis 1. Introduction 2. Data Viewer 3. Time and Energy Calibration 4. Energy and Mass Fit 5. Exercises 6. ROOT Manual 7. ROOT Practicum

Data analysis – ROOT Practicum

Data analysis from LIS setup 1.Analysis of data obtained from LIS setup using ROOT 2.Data analysis of signals from 5 GS/s Switched Capacitor Digitizer

Interactive environment for nuclear physics experiment design Libraries: radioactive sources, detectors, CAMAC modules, equipment for measurements, functions for data analysis

SAR – JINR Student Practice September 7–25, 2015 This practice was held in the framework of the Hardware-Software Project “Virtual Laboratory of Nuclear Fission” and included studying of the following topics: –Some Concepts of Nuclear Physics (10 hours) –Radioactivity Practicum (30 hours) –Theoretical Models of the Atomic Nucleus (6 hours) –Introduction to Nuclear Fission Experiment (6 hours) –Nuclear Fission Practicum (30 hours) –ROOT Practicum (20 hours)

Khanyisa Sowazi Virtual practicum in the framework of the project “Virtual Laboratory of Nuclear Fission”. Kehinde Gbenga Tomiwa Data analysis of LIS spectrometer signals from 5 GS/s Switched Capacitor Digitizer. Ndivhuwo Ndou Studying of cosmic rays by the use of scintillation detectors. Ndinannyi Justice Mukwevho LISSA training: measurements of thin foil thicknesses by the use of the radium-226 alpha source. SAR – JINR Student Practice September 7–25, 2015

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