A New Method for Measurement of Low Neutron Fluxes using Iodine-Containing Scintillators

One of the most important objectives pursued in low-background experiments on the search for rare events is the study and continuous monitoring of neutron fluxes in the vicinity of the detection setup. The problem is that neutron fluxes in low-background experiments are thousands of times lower than on the ground. The gold standard for neutron flux measurement is the 3He-based counter due to a large cross section for thermal neutron capture (5333 b) and extremely low sensitivity of these counters to the gamma background. Unfortunately, there are no commercial 3He sources: its content in natural helium is only 0.000137%. All the available amount of 3He is produced at nuclear reactors, and its cost is more than $2000 per litre.

Adjustment and Preparation for Commissioning of the Electron Linear Accelerator LINAC-200

At DLNP, the adjustment and commissioning work is well under way at LINAC-200, the first stage of the electron linear accelerator LINAC-800. The accelerator is intended for carrying out methodological investigations of detectors developed at JINR, solving applied problems with the use of electron beams, and implementing educational programmes of the JINR University Centre. The accelerator will produce electron beams with energies of 10 MeV to 200 MeV in a wide intensity range.

Eighth Lecture by Igor Ivanov “Zeptoseconds and yoctoseconds” from the Series “Time Scales: Travelling Deep into the Second with Historical Sketches”

Nuclear time scale. Lifetime of isotopes. Crystal blocking technique. Collision of relativistic nuclei.

Seventh Lecture by Igor Ivanov “The atom from inside” from the Series “Time Scales: Travelling Deep into the Second with Historical Sketches”

Presentation Series of Educational Lectures by Igor Ivanov “Time Scales: Travelling Deep into the Second with Historical Sketches” 

Congratulations to Yulian Aramovich Budagov and Mikhail Vasilyevich Lyablin on Receiving a Patent!

The JINR Department of Licensing and Intellectual Property announces that on 16 October 2020 the Joint Institute for Nuclear Research got a patent for the invention “Device for measuring surface inclination angles”. The authors are Yulian Aramovich Budagov and Mikhail Vasilyevich Lyablin.  

Sixth Lecture by Igor Ivanov “Femtoworld” from the Series “Time Scales: Travelling Deep into the Second with Historical Sketches”

Scales of the world of atoms. Motion of electrons and light. Pump-probe method. The first picosecond of melting. Femtochemistry and femtobiology.

Fifth Lecture by Igor Ivanov “Nanoseconds and picoseconds” from the Series “Time Scales: Travelling Deep into the Second with Historical Sketches”

Molecular motion: Speed and time scale evaluation. Sonoluminescence. Protein folding. “Life” of positrons in a crystal.

Neutrino Geophysics at DLNP

Neutrino geophysics has evolved to a separate discipline not so long ago. This rapidly developing branch of science at the intersection of geology, geophysics and particle physics examines the Earth’s interior by observing antineutrino fluxes produced by the decay of radioactive elements in the Earth’s crust and mantel. The contribution of radioactive decays to the total heat release of the Earth (radiogenic heat) determines the heat history of the Earth and restricts its geophysical models.

Photography Exhibition “Baikal. Neutrino Hunters” by Bair Shaybonov in the Mir Culture Centre Goes On

The article about the photography exhibition by Bair Shaybonov “Baikal. Neutrino Hunters” was published in the JINR weekly newspaper “Dubna: Science, Community, Progress”. Do you want to enjoy amazing scenery of Baikal in winter? And to touch a glass sphere, an optical module to be submerged deep under the water? Visit the Exhibition Hall of the Mir Culture Centre where the photography exhibition “Baikal. Neutrino Hunters” has been recently launched. The photographer is a regular member of the International Baikal collaboration Bair Shaybonov. The exhibition is open till 30 October.

The Baikal School on Physics of Elementary Particles and Astrophysics Got Underway

Today, the International Baikal School on Physics of Elementary Particles and Astrophysics has been launched. The first lecture for students of the Faculty of Physics of Irkutsk State University and attendees connected via the Zoom platform was given by Nikolay Mikhailovich Budnev. The School will be held till 24 October that is why there are a lot of scientific discussions ahead. Join in!

Fourth Lecture by Igor Ivanov “Ultrasound and phononics" from the Series “Time Scales: Travelling Deep into the Second with Historical Sketches”

History of ultrasonic studies and hydroacoustics: from bats to the sonar. Ultrasound in medicine: diagnostics and therapy. Hypersound and phonons: the tools of modern phononics.

Konstantin Gusev "Double Beta Decay Study in the GERDA/LEGEND and SuperNEMO Experiments"

The seminar was dedicated to the GERDA and SuperNEMO projects designed to search mainly for neutrinoless double beta (0νββ) decay of different isotopes using various methods. The discovery of this process, which violates the lepton number, would mean that neutrino is a Majorana particle and prove the existence of New Physics beyond the Standard Model. The GERDA experiment and the first phase of LEGEND are located at the Laboratori Nazionali del Gran Sasso in Italy. They search for the 0νββ decay of 76Ge and operate bare germanium detectors directly immersed in liquid argon.