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相关论文: The detection of neutron clusters

200 篇论文

The advent and intensive use of new detector technologies as well as radioactive ion beam facilities have opened up possibilities to investigate alpha, proton and cluster decays of highly unstable nuclei. This article provides a review of…

核理论 · 物理学 2019-03-27 Chong Qi , Roberto Liotta , Ramon Wyss

Core-Collapse Supernovae, failed supernovae and quark novae are expected to release an energy of few $10^{53}$ ergs through MeV neutrinos and a network of detectors is operative to look online for these events. However, when the source…

天体物理仪器与方法 · 物理学 2020-03-24 Odysse Halim , Carlo Vigorito , Claudio Casentini , Giulia Pagliaroli , Marco Drago , Viviana Fafone

The three-body description of two-neutron halo nuclei relies on the two-body interactions between the constituents. In order to provide constraints on calculations devoted to $^{14}$Be and $^{17}$B, neutron unbound states of $^{13}$Be and…

核实验 · 物理学 2009-11-10 J. L. Lecouey

We propose the use of isotopically highly enriched detectors for the precise study of coherent-elastic neutrino-nucleus scattering (CEvNS). CEvNS has been measured for the first time in CsI and recently confirmed with a liquid argon…

高能物理 - 唯象学 · 物理学 2022-02-10 A. Galindo-Uribarri , O. G. Miranda , G. Sanchez Garcia

We explore the abundance of light clusters in core-collapse supernovae at post-bounce stage in a quantum statistical approach. Adopting the profile of a supernova core from detailed numerical simulations, we study the distribution of light…

天体物理学 · 物理学 2008-11-26 Kohsuke Sumiyoshi , Gerd Roepke

A new method is proposed to deduce the neutron radii of neutron-rich nuclei. This method requires measuring the reaction cross sections of both the neutron-rich nucleus and its stable isotope at the same energy on a proton target. Using…

核理论 · 物理学 2020-04-22 I. A. M. Abdul-Magead , Eman Hamza , Badawy Abu-Ibrahim

The fast neutrons produced by a calibrated 241Am-Be source were detected by two different Cs2LiYCl6:Ce (CLYC) scintillator detectors. The two cylindrical crystals (1"x1" in size) were enriched with more than 99% of 7Li (C7LYC) and with…

仪器与探测器 · 物理学 2018-07-31 N. Blasi , S. Brambilla , F. Camera , S. Ceruti , A. Giaz , L. Gini , F. Groppi , S. Manenti , A. Mentana , B. Million , S. Riboldi

The investigation of the isospin dependence of multifragmentation reactions relies on precise reconstruction of the fragmenting source. The criteria used to assign free emitted neutrons, detected with the TAMU Neutron Ball, to the…

Properties of particle-unstable nuclei lying beyond the proton drip line can be ascertained by considering those (usually known) properties of its mirror neutron-rich system. We have used a multi-channel algebraic scattering theory to map…

核理论 · 物理学 2009-11-11 L. Canton , G. Pisent , J. P. Svenne , K. Amos , S. Karataglidis

We have been developing a neutron detector with spatial resolution of submicron by loading 6Li into fine-grained nuclear emulsion. By exposure to thermal neutrons, tracks from neutron capture events were observed. From their grain density,…

仪器与探测器 · 物理学 2016-12-15 N. Naganawa , S. Awano , M. Hino , M. Hirose , K. Hirota , H. Kawahara , M. Kitaguchi , K. Mishima , T. Nagae , H. M. Shimizu , S. Tasaki , A. Umemoto

A novel large volume spherical proportional counter, recently developed, is used for neutron measurements. Gas mixtures of $N_{2}$ with $C_{2}H_{6}$ and pure $N_{2}$ are studied for thermal and fast neutron detection, providing a new way…

Neutrino capture on beta-decaying nuclei is currently the only known potentially viable method of detection of cosmic background neutrinos. It is based on the idea of separation of the spectra of electrons or positrons produced in captures…

高能物理 - 唯象学 · 物理学 2019-09-25 Evgeny Akhmedov

A new type nuclear reaction on 159Tb with neutrons and protons in the incident channels and a bound dineutron (2n) in the output channel is considered based on available experimental observations. The dineutron is assumed to be separated…

核实验 · 物理学 2018-01-30 I. M. Kadenko

The production of heavy neutron-rich nuclei has been investigated using cold fragmentation reactions of $^{238}$U projectiles at relativistic energies. The experiment performed at the high-resolving-power magnetic spectrometer FRS at GSI…

We present an automated statistical method that uses medium-resolution spectroscopic observations of a set of stars to select those that show evidence of possessing significant amounts of neutron-capture elements. Our tool was tested…

天体物理仪器与方法 · 物理学 2019-10-30 G. Navó , J. L. Tous , J. M. Solanes

The worldwide need to replace 3He for the neutron detection has triggered R&D on new technologies and methods. A promising one is based on commercial solid state silicon detectors coupled with thin neutron converter layers containing 6Li.…

The emission of neutron pairs from the neutron-rich $N\!=\!12$ isotones $^{18}$C and $^{20}$O has been studied by high-energy nucleon knockout from $^{19}$N and $^{21}$O secondary beams, populating unbound states of the two isotones up to…

We developed a 12-liter volume neutron detector filled with the liquid scintillator EJ301 that measures neutrons in an underground laboratory where dark matter and neutrino experiments are located. The detector target is a cylindrical…

仪器与探测器 · 物理学 2015-06-15 C. Zhang , D. -M. Mei , P. Davis , B. Woltman , F. Gray

The results of measurements of the production of neutron-rich nuclei by the fragmentation of a 48Ca beam at 142 MeV/u are presented. Evidence was found for the production of a new isotope that is the most neutron-rich silicon nuclide, 44Si,…