1 Study of 7 Be relativistic fragmentation in nuclear track emulsion Denis Artemenkov, VBLHE, JINR ( for the BECQUEREL collaboration )

Slides:

Advertisements

Similar presentations

Lesson 3: Nuclear Basics Dr. Andrew Ketsdever. Nuclear Reactor.

Advertisements

Binding energy in atoms and nuclei [Sec. 4.1 Dunlap]

Atomic Nuclear1 Atomic Nuclei Radius of an atom ~ 10 –10 m (Å, Angstrom unit) Radius of a nucleus ~ 10 –15 m (fm, fermi or Femto-meter) Atomic nuclei are.

11 Study of light nuclei cluster structure with nuclear track emulsion Denis Artemenkov, VBLHEP, JINR Predeal-Romania October 14-18, 2013.

The structure of nuclei Nuclei are composed of just two types of particles: protons and neutrons. These particles are referred to collectively as nucleons.

Chapter 30 Nuclear Physics

Bucharest emulsion group along the time Who we are.

Brief History of Nuclear Physics 1896-Henri Becquerel ( ) discovered radioactivity 1911-Ernest Rutherford ( ), Hanz Geiger ( )

Aim: How are protons held together within the nucleus? Essential Questions : Why do certain elements undergo radioactive decay and others don’t? How do.

A nucleus can be specified By an atomic number and a Mass number.

Nuclear / Subatomic Physics Physics – Chapter 25 (Holt)

Neutral Particles. Neutrons Neutrons are like neutral protons. –Mass is 1% larger –Interacts strongly Neutral charge complicates detection Neutron lifetime.

Geant4 Physics Validation and Verification Ions Koi, Tatsumi SLAC/SCCS.

Nuclear Binding, Radioactivity Physics 1161: Pre-Lecture

© JP 1  alpha e-e-  beta  gamma Marie Curie Antoine-Henri Becquerel (1852 – 1908) α,  and  RADIATION.

Nuclear Physics Physics 12. Protons, Neutrons and Electrons  The atom is composed of three subatomic particles: Particle Charge (in C) Symbol Mass (in.

11 Study of light nuclei cluster structure with nuclear track emulsion Denis Artemenkov VBLHEP, JINR EFB22-Krakow-2013.

Radioactivity Nuclear Chemistry

Nuclear Fundamentals Part I Unleashing the Power of the Atom.

PHYS 221 Recitation Kevin Ralphs Week 14. Overview Nuclear Physics – Structure of the Nucleus – Nuclear Reactions.

Modern Physics. Atom Nucleons – subatomic particles in the atom’s nucleus (protons and neutrons). Ion – An atom with a net electric charge which is due.

Lecture 1 Introduction to Nuclear Science. Composition of atoms Atoms are composed of electrons and nuclei. The electrons are held in the atom by a Coulomb.

Chapters 9, 11, 12 Concepts covered that will also be candidates for exam questions.

Subatomic Physics Chapter Properties of the Nucleus The nucleus is the small, dense core of an atom. Atoms that have the same atomic number but.

Anatomy of an Atom Parts of an Atom Nucleus (positive, mass of 1 amu) Neutron (, mass of 1 amu) Electron Cloud Electrons (, negligible mass)

Nuclear Decay Notes Stability Curve Atomic number Z Neutron number N Stable nuclei Z = N Nuclear particles are held.

NUCLEAR CHEMISTRY. Discovery of Radiation Roentgen (1895) Discovered a mysterious form of radiation was given off even without electron beam. This radiation.

Nuclear Stability Notes

Topology of multifragmentation of light relativistic nuclei by P. I. Zarubin, JINR On behalf of the BECQUEREL Collaboration All this and more on the Web.

THE NUCLEUS AND NUCLEAR REACTIONS. Nuclear descriptions Atomic number Atomic mass number Isotopes nucleons.

Lecture 26 Atomic Structure and Radioactivity Chapter 29.1  29.4 Outline Properties of the Atomic Nucleus Binding Energy Radioactivity and Radioactive.

Atoms and Isotopes the light bulb is a reminder

Chapter 3 Atomic Structure. The Structure Of the Atom Particle masschargelocation Proton1 AMU +1in nucleus Neutron 1 AMU 0in nucleus Electron 0 AMU -1.

Nuclear Physics Mr. Jean

Alpha Decay A Helium- 4 nucleus (two protons and two neutrons). Is produced by nuclear fission Massive nucleus breaks apart into two less-massive nuclei.

Nuclear Chemistry Objective: To explain the process of radioactive decay using nuclear equations and half life Essential Question: How do unstable (radioactive)

Nuclear Chemistry The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons Multiple nuclei is.

proton mass, m p = x kg = u neutron mass, m n = x kg = u electron mass, m e = x 10.

Hadronic Physics II Geant4 Users’ Tutorial CERN February 2010 Gunter Folger.

Chapter 31: Nuclear Physics and Radioactivity

Radiochemistry Dr Nick Evans

Nuclear Radiation 9.2. The Nucleus Protons and neutrons Charge of electrons and protons – x C = e –Proton +e –Electron -e.

Radioactivity Physics 12 Adv. Radioactivity Radioactive decay is the emission of some particle from a nucleus which is accompanied by a change of state.

Inorganic Chemistry May 12, Describe how the strong force attracts nucleons Relate binding energy and mass defect Predict the stability of a nucleus.

Nuclear Radiation Half-Life. What is Radiation? Penetrating rays and particles emitted by a radioactive source Result of a nuclear reaction! –Involves.

Nuclear Physics Nuclei atomic number Z = protons

What is going on in there?

5.3.4 Nuclear Fission and Fusion. (a) select and use Einstein’s mass–energy equation ΔE = Δmc 2.

Nuclear Physics and Radioactivity AP Physics Chapter 30.

1 Atomic Structure Protons 1 1 p ( amu) Neutrons 1 0 n ( amu) Electrons ( amu) Neon Ne ( amu)

Light nucleus clustering in fragmentation above 1 A GeV N. P. Andreeva a, D. A. Artemenkov b,V. Bradnova b, M. M. Chernyavsky c, A. Sh. Gaitinov a, S.

Types of Radioactive Decay Kinetics of Decay Nuclear Transmutations

CEBAF - Continuous Electron Beam Accelerator Facility.

Prepared By: Shakil Raiman.  Atoms are made up of electrons, protons and neutrons.  The diameter of the nucleus is about 10,000 times smaller than the.

Nuclear Physics. Nuclear Structure Nucleus – consists of nucleons (neutrons and protons) Nucleus – consists of nucleons (neutrons and protons) Atomic.

Neutrino-Nucleus Reactions at Medium and Low Energies [contents] 1. Neutrino and weak interaction 2. Cross section for ν-A and e-A reactions 3. EMC effect.

1 Nuclear Stability Notes “Why do protons stay together when positive charges repel each other?” The main reason is because of a force called Strong Force.

Nuclear Chemistry. The Atom The atom consists of two parts: 1. The nucleus which contains: 2. Orbiting electrons. protons neutrons.

FRAGMENTATION OF RELATIVISTIC 10 C NUCLEI IN NUCLEI EMULSION K. MAMATKULOV JINR, Dubna September.

Chapter 14 Section 14.1.

Fragmentation of relativistic 9 Be and 14 N nuclei in nuclear track emulsion D. A. Artemenkov JINR, Dubna BECQUREL Collaboration web site:

Unstable Nuclei and Radioactive Decay. Radioactivity (Radioactive decay) The process by which some substances spontaneously emit radiation. Radioactive.

Исследование кластеризации легких ядер в релятивистской фрагментации П.И. Зарубин (ОИЯИ, Дубна) N. P. Andreeva a, D. A. Artemenkov b,V. Bradnova b, M.

Investigation of Coherent Dissociation 10 C Nuclei at an Energy of 1.2 A GeV Mamatkulov Kahramon LHEP, JINR, Dubna JSPI, Uzbekistan EMIN’ October.

August 31 – September 4, 2015, Groningen, Netherlands

Статус проекта БЕККЕРЕЛЬ и планы

proton mass, mp neutron mass, mn electron mass, me

CHAPTER 22 Nuclear Chemistry

I. The Nucleus What is “nuclear” energy? Where does it come from?

Interaction of Radiation with Matter

Presentation transcript:

1 Study of 7 Be relativistic fragmentation in nuclear track emulsion Denis Artemenkov, VBLHE, JINR ( for the BECQUEREL collaboration )

2 BECQUEREL at the JINR Nuclotron is devoted systematic exploration of clustering features of light stable and radioactive nuclei. The fragmentation of a large variety of light nuclei was investigated using the emulsions exposed to few A GeV nuclear beams at JINR Nuclotron. A nuclear track emulsion is used to explore the fragmentation of the relativistic nuclei.

3 Study of relativistic 7 Be fragmentation in nuclear track emulsion in JINR 7 Li  7 Be (charge exchange, at 1.2 A GeV) 2004 Relativistic fragments Target fragments Event number 2Hen b =0 n b > He+2Hn b =0 n b > Hn b =0 n b > Li+Hn b =0 n b > Totaln b =0 n b > C  7 Be (in mixed beam of 12 N+ 10 C+ 7 Be at 1.2 A GeV) 2006 Table 1. Charge composition of the fragments in events with Q=4

4

55 Ion Physics Electromagnetic Dissociation Electromagnetic dissociation is liberation of nucleons or nuclear fragments as a result of electromagnetic field by exchange of virtual photons, rather than the strong nuclear force It is important for relativistic nuclear-nuclear interaction, especially where the proton number of the nucleus is large G4EMDissociation model and cross section are an implementation of the NUCFRG2 (NASA TP 3533) physics and treats this electromagnetic dissociation (ED).

6 G4EMDissociation G4EMDissociationCrossSection Started: 3000 of 7 Be nuclei at 1.2 A GeV Produced: 7 events of 7 Be  6 Be+n; Data modeling of 7 Be EM dissociation at 1.2 A GeV 6 Be Atomic Mass:  amu Excess Mass:  keV Binding Energy:  keV Spin: 0+ Half life: 92 keV (5.0  fs) Mode of decay: 2 Proton to He-4 Decay energy: MeV

7 7 Be He H H 7 Be  He+2H 7 Be  6 Be+n  4 He+2 1 H+n ? 7 Be 6 Be n 4 He p p n

8 6 Ве 5 Li 12 C  7 Be (in mixed beam of 12 N+ 10 C+ 7 Be at 1.2 A GeV), 2006

9 7 Be  2He 7 Li  7 Be (charge exchange, at 1.2 A GeV) Be He

10 12 C  7 Be (in mixed beam of 12 N+ 10 C+ 7 Be at 1.2 A GeV) Li  7 Be (charge exchange, at 1.2 A GeV) 2004

11 λ exp =14,2 ± 0,2 cm (our experiment) Mean free path λ inel

12 Summary The possibilities of nuclear track emulsion for study of fragmentation of relativistic light nuclei is shown. The production of unstable 6 Be in electromagnetic interactions of 7 Be with emulsions nuclei is discussed. The most probable channels for 7 Be fragmentation are overviewed. Thank you for your attention!

13