A facility for direct measurements for nuclear astrophysics at IFIN-HH - a 3 MV tandem accelerator and an ultra-low background laboratory

doi:10.1016/j.nima.2019.163178

	A facility for direct measurements for nuclear astrophysics at IFIN-HH - a 3 MV tandem accelerator and an ultra-low background laboratory
	Tudor, D.1,2; Trache, L.1; Chilug, A., I 1,2; Stefanescu, I. C.1,2; Spiridon, A.1; Straticiuc, M.1; Burducea, I 1; Pantelica, A.1; Margineanu, R.1; Ghita, D. G.1
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2020-02-11
卷号	953 页码:6
关键词	Nuclear physics for astrophysics Direct measurements Thick target method Activation methods Ultra-low background
ISSN号	0168-9002
DOI	10.1016/j.nima.2019.163178
通讯作者	Trache, L.(livius.trache@nipne.ro)
英文摘要	We present a facility for direct measurements at low and very low energies typical for nuclear astrophysics. The facility consists of a small and robust tandem accelerator where irradiations are made and an ultra-low background laboratory located in a salt mine where very low radio-activities can be measured. Both belong to "Horia Hulubei" National Institute for Physics and Nuclear Engineering (IFIN-HH), but are situated 120 km apart. Their performances are shown using a few cases where they were used. We argue that this facility is competitive for the study of nuclear reactions induced by alpha particles and by light ions at energies close to or down into the Gamow windows. A good case study was the C-13+C-12 fusion reaction, where the proton evaporation channel leads to an activity with T-1/2=15 h, appropriate for samples' transfer to the salt mine. Measurements were done using the thick target method down into the Gamow window for energies from E-c,E-m = 2.2 MeV, which is the lowest energy ever reached for this reaction, up to 5.3 MeV, using C-13 beams from the 3 MV Tandetron. The activation method allowed us to determine a cross section of the order of 100 pb. Reactions induced by alphas were also measured. Proton induced resonant reactions were used to calibrate the accelerator terminal voltage. Some results of the experiments characterizing the assembly are shown and discussed.
资助项目	Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Romania[PN-III-P4-ID-PCE-2016-0743]
WOS关键词	SLANIC-PRAHOVA
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000506419900006
资助机构	Executive Agency for Higher Education, Scientific Research, Development and Innovation Funding, Romania
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/141426]
专题	中国科学院近代物理研究所
通讯作者	Trache, L.
作者单位	1.IFIN HH, Horia Hulubei Natl Inst R&D Phys & Nucl Engn, Bucharest 077125, Romania 2.Univ Bucharest, Doctoral Sch Phys, Bucharest 077125, Romania 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 4.Lanzhou Univ, Joint Dept Nucl Phys, Lanzhou 730000, Peoples R China 5.Lanzhou Univ, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Tudor, D.,Trache, L.,Chilug, A., I,et al. A facility for direct measurements for nuclear astrophysics at IFIN-HH - a 3 MV tandem accelerator and an ultra-low background laboratory[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2020,953:6.
APA	Tudor, D..,Trache, L..,Chilug, A., I.,Stefanescu, I. C..,Spiridon, A..,...&Tang, X. D..(2020).A facility for direct measurements for nuclear astrophysics at IFIN-HH - a 3 MV tandem accelerator and an ultra-low background laboratory.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,953,6.
MLA	Tudor, D.,et al."A facility for direct measurements for nuclear astrophysics at IFIN-HH - a 3 MV tandem accelerator and an ultra-low background laboratory".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 953(2020):6.