CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT

doi:10.3847/0004-637X/829/2/120

	CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT
	Alexeev, Victor 1; Bagulya, Alexander 2; Chernyavsky, Mikhail 2; Gippius, Alexei 2; Goncharova, Lyudmila 2; Gorbunov, Sergei 2; Gorshenkov, Mikhail 3; Kalinina, Galina 1; Konovalova, Nina 2; Liu, Jie4
刊名	ASTROPHYSICAL JOURNAL
	2016-10-01
卷号	829 页码:18
关键词	acceleration of particles elementary particles nuclear reactions, nucleosynthesis, abundances Physical data and processes
ISSN号	0004-637X
DOI	10.3847/0004-637X/829/2/120
英文摘要	The aim of the OLIMPIYA experiment is to search for and identify traces of heavy and superheavy nuclei of galactic cosmic rays (GCR) in olivine crystals from stony-iron meteorites serving as nuclear track detectors. The method is based on layer-by-layer grinding and etching of particle tracks in these crystals. Unlike the techniques of other authors, this annealing-free method uses two parameters: the etching rate along the track (V-etch) and the total track length (L), to identify charge Z of a projectile. A series of irradiations with different swift heavy ions at the accelerator facilities of GSI (Darmstadt) and IMP (Lanzhou) were performed in order to determine and calibrate the dependence of projectile charge on Vetch and L. To date, one of the most essential results of the experiment is the obtained charge spectrum of GCR nuclei within the range of Z > 40, based on about 11.6 thousand processed tracks. As the result of data processing, 384 nuclei with charges Z >= 75 have been identified, including 10 nuclei identified as actinides (90 < Z < 103). Three tracks were identified to be produced by nuclei with charges 113 < Z < 129. Such nuclei may be part of the Island of Stability of transfermium elements.
资助项目	Russian Foundation for Basic Research, Russia[16-38-00877] ; Russian Foundation for Basic Research, Russia[15-02-02875]
WOS关键词	OLIVINE CRYSTALS ; FOSSIL TRACK ; ION TRACKS ; R-PROCESS ; NUCLEI Z-GREATER-THAN-OR-EQUAL-TO-110 ; CHEMICAL-COMPOSITION ; METEORITE OLIVINES ; SUPERNOVA REMNANT ; PARTICLE TRACKS ; ELEMENTS
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000385377200062
资助机构	Russian Foundation for Basic Research, Russia
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/24484]
专题	中国科学院近代物理研究所
通讯作者	Alexeev, Victor
作者单位	1.Russian Acad Sci, Vernadsky Inst Geochem & Analyt Chem, 19 Kosygin Str, Moscow 119991, Russia 2.Russian Acad Sci, Lebedev Phys Inst, 53 Leninsky Prosp, Moscow 119991, Russia 3.Natl Univ Sci & Technol MISIS, 4 Leninsky Prosp, Moscow 119049, Russia 4.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Peoples R China 5.Natl Res Nucl Univ MEPhI, 31 Kashirskoe Shosse, Moscow 115409, Russia 6.GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany 7.Tech Univ Darmstadt, Darmstadt, Germany 8.Natl Res Ctr, Kurchatov Inst, 1 Kurchatov Sq, Moscow 123182, Russia 9.Joint Inst Nucl Res, Flerov Lab Nucl React, 6 Joliot Curie St, Dubna 141980, Russia
推荐引用方式 GB/T 7714	Alexeev, Victor,Bagulya, Alexander,Chernyavsky, Mikhail,et al. CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT[J]. ASTROPHYSICAL JOURNAL,2016,829:18.
APA	Alexeev, Victor.,Bagulya, Alexander.,Chernyavsky, Mikhail.,Gippius, Alexei.,Goncharova, Lyudmila.,...&Volkov, Alexander.(2016).CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT.ASTROPHYSICAL JOURNAL,829,18.
MLA	Alexeev, Victor,et al."CHARGE SPECTRUM OF HEAVY AND SUPERHEAVY COMPONENTS OF GALACTIC COSMIC RAYS: RESULTS OF THE OLIMPIYA EXPERIMENT".ASTROPHYSICAL JOURNAL 829(2016):18.