A Novel Method of Analyzing a Reaction Using the Data from Particle and Gamma-ray Detectors

Abstract

The radioactive isotope beam (RIB) of 25Na at 5MeV/u energy in maximum 3x107 pps intensity was fired on a deuterated polyethylene (CD2) to investigate mainly (d,p gamma) reaction. However, there were other reaction possibilities, which were arisen from the same collision, to be eliminated wisely. As to a particle detector and a gamma-ray detector, highly selective double-sided silicon strip detectors (DSSSD) and high purity germanium detectors (HPGe) were employed to make delicate selections of distinctive energies of experimentally populated excited states of 26Na. The motivation of this work was to show how to combine the information coming out of two different types of detectors in terms of energies to reach out a new unobserved data. This study was a part of the experiment with Silicon Highly-segmented Array for Reactions of Coulex (SHARC) and TRIUMF-ISAC Gamma-ray Escape-Suppressed Spectrometry (TIGRESS) in Canada.

Keywords

• RIB
• SHARC
• TIGRESS
• 26Na
• reaction

Parçacık ve Gama Işını Dedektörlerini Kullanarak Bir Reaksiyonu Analiz Etmenin Farklı Bir Yöntemi

Abstract

25Na içeren radyoaktif izotop ışını, 5MeV/akb enerjide ve maksimum saniyede 3x107 parçacık içerecek şekilde deuterated polyethylene (CD2) hedef üzerine (d,p gama) reaksiyonunu araştırmak üzere gönderilmiştir. Buna rağmen, aynı çarpışmadan kaynaklanan farklı reaksiyon türleri olabileceği için, bunların dikkatlice ayrıştırılması gereklidir. Parçacık ve gama ışını dedektörü olarak, çift taraflı şeridi olan silikon dedektörleri ve yüksek saflıkta germenyum dedektörleri kullanılarak, 26Na çekirdeğinin farklı enerjilerdeki durumları elde edilmiştir. Bu çalışmanın motivasyonu ise, farklı tipteki detektörlerden gelen bilgileri birleştirerek, daha önceden gözlenmemiş yeni verilere nasıl ulaşılabileceğini göstermekdi. Bu çalışma, SHARC ve TIGRESS dedektörlerinin bulunduğu Kanada’da yapılan deneyin bir parçasıdır.

Keywords

• Radyoaktif izotop ışını
• SHARC
• TIGRESS
• 26Na
• reaksiyon

References

1. AIP Conference Proceedings 150, 710 (1986); https:// doi.org/10.1063/1.36053, np reaction studies
2. Ball, G. C., Davies, W. G., Forster, J. S., & Hardy, J. C. (1972). Use of the (7Li,7Be) reaction to measure the mass of 26Na. Physical Review Letters, 28(16), 1069–1071. https://doi.org/10.1103/PhysRevLett.28.1497.4
3. Catford, W.N. at al. (2015). Structure of 26Na via a novel technique using (d,pγ) with a radioactive 25Na beam. Acta Physica Polonica B, 46 (3). https://doi.org/10.5506/APhysPolB.46.527
4. Celik, I. C. (2014). A particle-γ coincidence study of 26Na using the transfer reaction 25Na(d,p γ)26Na. (Ph.D thesis, University of Surrey, Guildford, 2014).
5. Celik, I.C., Catford, W.N., Matta, A., Wilson, G.L. (Nov. 25, 2019a). The extended energy regime of 26Na via transfer reaction in inverse kinematics. AIP Conference Proceedings 2178, 030054. https://doi.org/10.1063/1.5135452
6. Celik, I.C. (Nov. 25, 2019b), “Gamma-ray angular distribution analysis of transfer reaction data for excited states of 26Na. AIP Conference Proceedings 2178, 030055. https://doi.org/10.1063/1.5135453
7. Firestone, R.B. (2009). Nuclear Data Sheets 110, p. 1691.
8. Flynn, E.R. & Garret, J.D. 26Mg(t, 3He) reaction and a spherical-shell-model description of 26Na. Phys. Rev. C, 9 (1), January (1974). https://doi.org/10.1103/PhysRevC.9.210

9. Janecke, J. (1973, April, 16). The reaction 26Mg(d, τ)25Na and the structure of 25Na. Nuclear Physics A, 204, 3, 497-515. https://doi.org/10.1016/0375-9474(73)90390-4
10. Kramer, E., Mairle, G. & Kaschl, G. (1971, April, 13). Proton pickup from the magnesium isotopes: 24,25,26Mg(d,t)23,24,25Na. Nuclear Physics A, 165, 2, 353-383. https://doi.org/10.1016/0375-9474(71)90765-2
11. Lee, S. at al. (2006). Structure of 26Na from the 14C(14C,d) reaction. Physical Review C, 73(4). https://doi.org/10.1103/PhysRevC.73.044321
12. Obertelli, A. at al. (2006). γ spectroscopy of 25,27Ne and 26,27Na. Physical Review C, 74(6). https://doi.org/10.1103/PhysRevC.74.064305
13. Scott, D. K. at al. (1974). Spectroscopy of exotic nuclei using heavy-ion transfer reactions. Physical Review Letters, 33(22),1343–1346. https://doi.org/10.1103/PhysRevLett.33.1343
14. Weissman L. at al. (2004, November, 19). Beta decay of 26Ne. Phys. Rev. C, 70, 057306. https://doi.org/10.1103/PhysRevC.70.057306
15. Wilson, G.L. (2012). Investigating the evolution of the nuclear magic numbers via single-neutron transfer populating 26Na. (Ph.D thesis, University of Surrey, Guildford, 2012).