An instrument for measuring T-odd asymmetries in the fission of heavy nuclei

Berikov, D.; Hutanu, Vladimir; Kopatch, Yu. N.; Ahmadov, G.; Gagarski, A. M.; Novitsky, V. V.; Danilyan, G.V.; Masalovich, S.; Klenke, J.; Deng, Hao

doi:10.1088/1748-0221/15/01/p01014

Cited by 4 publications

(3 citation statements)

References 14 publications

(19 reference statements)

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“…This spin control device was tested on a beam of polarized neutrons at the POLI instrument of the FRM II reactor in Garching (Germany) [10] and was used in experiments to measure T-odd effects in fission of heavy nuclei. The schematic view of the experimental setup at the POLI instrument is depicted in figure 3.…”

Section: Jinst 17 P08030 3 Polarization Vector Control Methodsmentioning

confidence: 99%

Magnetic system for controlling the spin of polarized neutrons

et al. 2022

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A spin control magnetic system was developed and assembled at the JINR Laboratory of Neutron Physics (Dubna, Russia) and was tested with a beam of polarized neutrons at the POLI instrument of the FRM II reactor in Garching (Germany). This paper presents the principle of operation and a method for compensating the influence of external magnetic fields on polarization using this device. The system consists of three precession coils in a magnetic screen. The first coil allows, by changing the current in it, to ensure the rotation of the neutron spin by an arbitrary angle relative to the magnetic field inside the coil. The remaining two coils are designed to compensate for the effect of scattered magnetic fields on the beam polarization, and to preserve the polarization vector direction.

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Section: Jinst 17 P08030 3 Polarization Vector Control Methodsmentioning

confidence: 99%

Magnetic system for controlling the spin of polarized neutrons

et al. 2022

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“…The DAQ of the experiment included the following modules: preamplifiers (PAM), timing filter amplifiers (TFA), constant fraction discriminators (CFD) for time pick-up, Time-to-Digital Converters (TDCs), logical modules AND, OR, Logic fan-in/fanout (FIFO), Analog-to-Digital Converters (ADCs), delays, scalers. A more detailed description of the data acquisition electronics is given in [8].…”

Section: Data Acquisition Systemmentioning

confidence: 99%

A ROOT-based program for analysing T-odd asymmetry results of the neutron-induced fission of heavy nuclei

Berikov¹,

Ahmadov²,

Kopatch³

et al. 2020

Eurasian J. Phys. Funct. Mater.

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This paper presents a ROOT based program that allows processing the data from experiments on the ROT-asymmetry in the angular distribution of fission products and present the results of the experiment in a convenient and visual form. The program can work with huge data sets and detect very subtle effects. The algorithm used by the program is given in this work. The overall description of the experimental setup, as well as data acquisition and processing systems, are presented, too.

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“…Two relatively light and two heavy fragments are observed in this fission process [4][5][6]. Studying these nuclear processes could give information about the mechanism of nuclear fission, so these particles carry information on statistic and dynamic properties of fissioning nuclei at the scission point [4,[7][8][9]. To study these processes, an experimental setup was assembled consisting of three position-sensitive ∆E -E semiconductor telescopes and a silicon detector.…”

Section: Introductionmentioning

confidence: 99%

Ternary particles of Z =1 to 4 emitted in spontaneous fission of 252Cf

Ahmadov

2022

Eurasian j. phys. funct. mater.

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This paper presents the results of ternary light charged particles from 252 Cf spontenous fission source. The method ∆E -E was applied to identify the particle by a position sensitive ∆E -E telescope.The specific energy loss ( ∆E ) was measured using the transmission type ∆E detector (thicknesses of 150 µm ) ordered from the company Micron Semiconductors, while the residual energy (E) was measured by a Timepix detector with thicknesses of 600 µm . It was possible to measure partial-energy spectra of the various ternary particle types due to the thicknesses of Al foil (31 µm ) and ∆E detector (150 µm ) placed before E detector. The energy spectrum of protons was qualitatively different from the spectra of the other particles since protons from Al(n,p) and Si (n,p) reactions could contribute to the spectra.

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An instrument for measuring T-odd asymmetries in the fission of heavy nuclei

Cited by 4 publications

References 14 publications

Magnetic system for controlling the spin of polarized neutrons

Magnetic system for controlling the spin of polarized neutrons

A ROOT-based program for analysing T-odd asymmetry results of the neutron-induced fission of heavy nuclei

Ternary particles of Z =1 to 4 emitted in spontaneous fission of 252Cf

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