Alpha-particle spectrometry using position-sensitive solid-state track detectors

Dyachkov, V. V.; Yushkov, A.V.; Shakirov, A.L.

doi:10.1134/s0020441213040179

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…Unfortunately, the available low-energy angular distribution by Dyachkov et al [127] does not provide a sufficient number of experimental data points for a stable phase shift fit or optical model analysis. The phase shift analysis of the angular distribution by Gailar et al [128] at E α = 18.82 MeV leads to σ reac = 1278 mb, corresponding to E red = 2.89 MeV and σ red = 60.7 mb, i.e.…”

Section: Thementioning

confidence: 99%

Cross sections of α-induced reactions for targets with masses A ≈ 20–50 at low energies

Mohr

2015

Eur. Phys. J. A

100

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Abstract. A simple reduction scheme using so-called reduced energies E red and reduced cross sections σ red allows the comparison of heavy-ion induced reaction cross sections for a broad range of masses of projectile and target and over a wide energy range. A global behavior has been found for strongly bound projectiles whereas much larger reduced cross sections have been observed for weakly bound and halo projectiles. It has been shown that this simple reduction scheme works also well for α-particle induced reactions on heavy target nuclei, but very recently significant deviations have been seen for α+ 33 S and α+ 23 Na. Motivated by these unexpected discrepancies, the present study analyses α-induced reaction cross sections for targets with masses A ≈ 20 − 50. The study shows that the experimental data for α-induced reactions on nuclei with A ≈ 20 − 50 deviate slightly from the global behavior of reduced cross sections. However, in general the deviations evolve smoothly towards lower masses. The only significant outliers are the recent data for 33 S and 23 Na which are far above the general systematics, and some very old data may indicate that 36 Ar and 40 Ar are below the general trend. As expected, also the doubly-magic 40 Ca nucleus lies slightly below the results for its neighboring nuclei. Overall, the experimental data are nicely reproduced by a statistical model calculation utilizing the simple α-nucleus potential by McFadden and Satchler. Simultaneously with the deviation of reduced cross sections σ red from the general behavior, the outliers 23 Na, 33 S, 36 Ar, and 40 Ar also show significant disagreement between experiment and statistical model calculation.PACS. 25.55.-e 3H-, 3He-, and 4He-induced reactions -24.10.Pa Thermal and statistical models

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Section: Thementioning

confidence: 99%

Cross sections of α-induced reactions for targets with masses A ≈ 20–50 at low energies

Mohr

2015

Eur. Phys. J. A

100

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New Nuclear Physical Phenomenon: Spontaneous Nuclear Synthesis

et al. 2022

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Direct experimental detection of spatially localized clusters in nuclei on alpha-particle beams

Zaripova

Dyachkov

Yushkov

et al. 2018

Int. J. Mod. Phys. E

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Direct method for detecting intranuclear clusters of nuclear matter-clusters and determining their effective numbers was developed. The idea of the method is based on the functional coincidence of kinematics for light nuclei in the free state and clusters of the same mass within the nuclear volume. The reliability of the method is additionally confirmed by two experimental methods. The experiments were carried out at the Kazakhstan U-150M accelerator on a beam of [Formula: see text]-particles with energy of 29[Formula: see text]MeV. The first method consists in measuring the half-width of the elastic scattering peak from the angle and a comparison between the differential cross-sections of elastically scattered [Formula: see text] particles on free light nuclei and the differential cross-sections obtained by the authors on intranuclear multicluster. Using the second method, the correlation method, an experiment was performed to record the scattered [Formula: see text] particle on the 9Be nucleus-matrix and the recoil nucleus identical to it ([Formula: see text] particle). Thus, the kinematics of the [Formula: see text] 4He reaction, where 4He is an intranuclear [Formula: see text] cluster, indicates the presence of an intranuclear alpha cluster, which is further confirmed by the authors, an experimental measurement of intranuclear multicluster.

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Alpha-particle spectrometry using position-sensitive solid-state track detectors

Cited by 5 publications

References 3 publications

Cross sections of α-induced reactions for targets with masses A ≈ 20–50 at low energies

Cross sections of α-induced reactions for targets with masses A ≈ 20–50 at low energies

New Nuclear Physical Phenomenon: Spontaneous Nuclear Synthesis

Direct experimental detection of spatially localized clusters in nuclei on alpha-particle beams

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