LXX International conference "NUCLEUS – 2020. Nuclear physics and elementary particle physics. Nuclear physics technologies"

Session

Poster session 3 (part 4)

15 Oct 2020, 18:15

Online

123. Alpha particle energy loss in thin layers of an inhomogeneous absorber

Dr Mikhail Dolgopolov (Voronezh State University)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

The energy loss of alpha particles in thin layers of various absorbers, including those composed of various materials was investigated.As absorbers, aluminum films with a thickness of 1–10 microns and lavsan films with a thickness of 5–20 microns were used.The radiation sources were standard alpha sources $ {}^{238}Pu$ and ${}^{239}Pu$.
A Gaussian distribution in the calculations...

264. Dose adjustment for irradiation of foodstuffs of non-rectangular geometry

Mr Felix Studenikin (Lomonosov Moscow State University, Physics Department)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

These days radiation technologies are widely used in food industry to prolong the shelf life of foodstuffs by inhibiting pathogens [1-2]. With the increase in types of food processed using irradiation, researchers have faced the problem of determining the required dose distribution in foodstuffs of complex geometry as well as heterogeneous chemical composition and structure [3-5].
The...

301. Field of capture gamma radiation with an energy of up to 10 MeV

Damian Komar (SPE ATOMTEX)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

The use of dosimeters calibrated in reference fields with corresponding energies for correct estimation of dose loads for personnel working in high-energy gamma-radiation fields with energies above 3 MeV is required. The creation of reference fields with gamma-radiation energies up to 7 MeV is essential for photon radiation dosimetry at nuclear power plants, where a significant gross dose rate...

115. INFLUENCE OF γ-RADIATION ON STRUCTURE OF HIGH DENSITY POLYETHYLENE COMPOSITES WITH GaAs AND GaAs <Te> FILLERS

Ms Gunay Ahmadova

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

INFLUENCE OF γ-RADIATION ON STRUCTURE OF HIGH DENSITY POLYETHYLENE COMPOSITES WITH GaAs AND GaAs <Te> FILLERS
G.B.Ahmadova
Institute of Physics of ANAS, Baku, AZ 1143, Azerbaijan
gunayehmedova12@gmail.com
This paper presents the results of Fourier-IR spectroscopic studies of γ-radiation effect on the structure of composite films of high density polyethylene (HDPE) with semiconductor...

36. LINEAR TRANSVERSE, ANGULAR, AND TIME CHARACTERISTICS OF ELECTRON-TO-POSITRON CONVERSION AT E^-(55; 220; 1000) MeV

Dr Leonid Dzhilavyan (INR RAS)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

Beams of ultrarelativistic positrons are an essential tool for experimental studies in physics of atomic nuclei and elementary particles. Usually positrons for these beams are produced by conversion of ultrarelativistic electrons to positrons in thick targets-converters. In one variant some magnetic system separates from all positrons from converter those which have necessary energy without...

431. NUCLEI PRODUCED FROM ${}^{238}$U IRRADIATED BY SECONDARY NEUTRON FIELD INITIATED BY PROTON BEAM (E = 660 MeV).

Mr Тоан Чан (ОИЯИ)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

The experiment was carried out at the proton accelerator (JINR, Dubna).
We studied the reaction products inside thin ${}^{238}$U sample irradiated by secondary neutron field created from lead target by proton beam (E = 660 MeV) [1-3].
The distribution of uranium fission products on proton beam at energy of 660 MeV is shown in Fig. 1.

Fig. 1. Fission products from ${}^{238}$U on proton...

114. THE ROLE OF NUCLEUS REACTIONS IN PETROLEUM METAMORPHISM

Ms Mehpara Ismayilova

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

THE ROLE OF NUCLEUS REACTIONS IN PETROLEUM METAMORPHISM
Ismayilova M.K.
Azerbaijan National Academy of Sciences, Laboratory of Energy Consuming Radiation Processes, Institute of Radiation Problems, Baku, Azerbaijan
АZ 1143 Bаku, Azerbaijan, B.Vahabzadeh str.9
E-mail: ismayilovamehpara@gmail.com
Many published scales reflect the irreversible effects of organic metamorphism. A.Hood,...

320. The systematic shift of the timing mark for an organic scintillator and its effect to the prompt fission neutron spectrum.

Dr Vitaly Khryachkov (IPPE)

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

An analysis of the experimental and theoretical works devoted to the spectra of prompt fission neutrons (PFN) showed serious contradictions in the obtained results. Most authors attribute the discrepancy in the measurement results to the influence of a number of systematic errors, the contribution of which is most pronounced at neutron energies below 1 MeV and above 6 MeV.
The vast majority of...

140. Формирования электромагнитных полей в оптическом диапазоне, возникающих в результате взаимодействия позитронов со средой.

Farkhat Valiev (St Petersburg State University (RU))

15/10/2020, 18:15

Section 3. Modern nuclear physics methods and technologies.

Poster report

В работах [1, 2, 3] применен полуклассический подход и модель линейного тока [4] для расчета изменений электромагнитных полей в оптическом диапазоне, формируемых при взаимодействии электронов, гамма квантов с жидкой, твердой и газовой средой. В подходе, применённом при решении конкретных задач, использовался пособытийный анализ формирования электромагнитных полей с применением пакета GEANT...