LXXI International conference "NUCLEUS – 2021. Nuclear physics and elementary particle physics. Nuclear physics technologies"

Session

Do not paticipate

Not scheduled

286. Electron screening effect @ IJS

Aleksandra Cvetinović

Section 2. Experimental and theoretical studies of nuclear reactions.

Oral report

In nuclear reactions induced by low-energy charged particles, atomic electrons can participate in the process by screening the nuclear charge and so, effectively reduce the repulsive Coulomb barrier. Consequently, the measured cross section is enhanced by an effect called electron screening. In numerous experiments, different research groups [1-4] obtained extremely high values of electron...

199. ESTIMATION OF SOME ADVANTAGES OF GADOLINIUM IN NCT

Gayratulla Kulabdullaev (INP of Uzbekistan)

Section 8. Nuclear medicine.

Poster report

Neutron Capture Therapy (NCT) is a radiotherapeutic technique still in experimental phase, that exploits the high thermal-neutron cross section of gadolinium isotopes and the
ability to selectively accumulate in tumor cells such isotopes chemically bound to suitable tumor-seeking compound [1]. 157Gd (σth = 255000 b) has been considered too, owing to the Auger-electron-induced DNA damages. In...

320. Fission and fast fission of neutron-deficient nuclei of Hg and Pb formed in 36Ar and 40Ca induced reactions with 144,154Sm targets

Alexey Bogachev (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research)

Section 2. Experimental and theoretical studies of nuclear reactions.

Oral report

Fission of neutron-deficient nuclei of sub-lead region unexpectedly showed well-pronounced asymmetric component as well as symmetric one [1]. This regenerated intensive investigations of fission properties of nuclei lying in this area of the nuclide chart.
Mass-energy distributions of fission fragments of neutron-deficient 180, 190Hg and 184,192,202Pb composite systems formed in the...

311. Identification of the charged particle tracks using novel pixel detectors

Alina Rakhmatullina (St Petersburg State University (RU))

Section 3. Modern nuclear physics methods and technologies.

Poster report

In modern high energy and elementary particle physic experiments, studies of extreme states of matter play a key role. To investigate of these states in the collider experiments in nucleus–nucleus collisions one can use the modern software and hardware complexes for the charged particle tracking.
This work gives the overview of modern algorithms for the search and reconstruction of charged...

139. Measurements of light-flavour resonance production with ALICE at the LHC

Alexander Borissov (IHEP (RU))

Section 4. Relativistic nuclear physics, elementary particle physics and high-energy physics.

Oral report

The production of hyperon resonances (Sigma(1385), Xi(1530) and Lambda(1520)) in pp, p-Pb and Pb-Pb collisions at the LHC is used to probe the interplay of particle re-scattering and regeneration in the hadronic phase. Moreover, resonances containing strange quarks can also be affected by the so-called `` strangeness enhancement'' phenomenon. The first measurements of the Sigma0+anti-Sigma0...

204. Online track reconstruction for the SRC setup of the BM@N experiment

Sergei Merts

Section 3. Modern nuclear physics methods and technologies.

Oral report

The Short Range Crrelation (SRC) program ia an extention of the BM@N experiment (Baryonic matter at Nuclotron), the first experiment of the NICA project. Current report is related to the upcoming run of the experiment (November of 2021). In the report a new version of the particle trajectories reconstruction algorithm in the proton arm spectrometer of the SRC setup is described. The efficiency...

277. Real-time Elasto-plastic Stress Buildup in High Temperature LWR Pipes

Asghar Aryanfar (American University of Beirut)

Section 3. Modern nuclear physics methods and technologies.

Oral report

Abstract The fracture within the pressurized cooling pipeline of LWR reactors is a catastrophic event leading to the failure. We develop a real-time framework for the accumulation of compressive stress due to both elastic stress from the imposed internal/external pressure and the corrosion stress from the hosting oxygen in the metal matrix. In this regard, we quantify the penetration of the...

191. Restoration of the spectrum of delayed neutrons of the pulse reactor IBR-2.

Dr Евгения Кузнецова (JINR, INR RAS)

Section 3. Modern nuclear physics methods and technologies.

Poster report

Abstract. The new time-of-flight method for measuring the neutron lifetime τn, proposed in [1], is sensitive to the background. The effect-to-background ratio was found to be of the order of 10-6 for the time-of-flight base of 20 meters. The pulsed neutron source IBR-2 has an irremovable background from the delayed neutrons. Between the power pulses of the IBR-2 reactor, about 7% of the...

167. Specific features of the ${}^6$He and ${}^6$li nuclei in interaction with $\alpha$-particles

Bakytzhan Urazbekov

Section 2. Experimental and theoretical studies of nuclear reactions.

Oral report

In recent years, the study of light weakly bound nuclei has not become less interesting due to the development of both experimental facilities and theoretical approaches. The nucleus $^9$Be having Borromean structure was the subject of study on its manifestation of cluster in direct nuclear reactions [1]. In particular, it was found that in the $^9$Be($d$,$\alpha$)$^7$Li nuclear reaction the...

202. The using of the integral compensation method for the measurement of TOF - spectra of the neutron.

Dr Валерий Кузнецов (JINR, INR RAS)

Section 3. Modern nuclear physics methods and technologies.

Poster report

Abstract. The time-of-flight neutron transmission spectra were measured by the integral-compensation method. Investigations of the stability of time-of-flight spectra of neutrons were carried out; measurements of time-of-flight spectra were carried out in the counting and integral modes.
In the counting mode, after amplification, the detector pulses were fed into a discriminator-shaper,...