scholarly journals Modificated activation method for measurement of the yield of the astrophysical reactions

2019 ◽  
Vol 49 ◽  
pp. 1960013
Author(s):  
S. V. Artemov ◽  
S. B. Igamov ◽  
A. A. Karakhodzhaev ◽  
O. R. Tojiboyev ◽  
F. Kh. Ergashev ◽  
...  
Keyword(s):  
Cross Sections ◽  
Temperature Region ◽  
Energy Region ◽  
Activation Method ◽  
Original Version ◽  
Yield Values

The original version of the activation method is presented and yield of the astrophysical relevant reaction [Formula: see text] has been measured at the energy region 190–650[Formula: see text]keV using this method. The rate of this reaction was calculated within the temperature region [Formula: see text] through the yield values. The possibility of improving the method for measuring very small yields or cross sections was demonstrated.

scholarly journals Studies of neutron cross-sections important for spallation experiments using the activation method

2014 ◽  
Vol 533 ◽  
pp. 012051
Author(s):  
J Vrzalová ◽  
P Chudoba ◽  
A Krása ◽  
M Majerle ◽  
M Suchopár ◽  
...  
Keyword(s):  
Cross Sections ◽  
Activation Method ◽  
Neutron Cross Sections

scholarly journals Measurements of neutron-induced light-charged particle emission reactions

2020 ◽  
Vol 239 ◽  
pp. 01001
Author(s):  
Guohui Zhang ◽  
Huaiyong Bai ◽  
Haoyu Jiang ◽  
Zengqi Cui ◽  
Yi Lu ◽  
...  
Keyword(s):  
Neutron Source ◽  
Neutron Energy ◽  
Cross Sections ◽  
Energy Region ◽  
Nuclear Research ◽  
Reaction Cross ◽  
Tandem Accelerator ◽  
Peking University ◽  
Three Body ◽  
Charged Particle Emission

In the past two decades cooperating with Frank Laboratory of Neutron Physics (FLNP), Joint Institute for Nuclear Research (JINR) measurements of (n, α) reaction cross sections for 6Li, 10B, 25Mg, 39K, 40Ca, 54,56,57 Fe, 58Ni, 63Cu, 64,67 Zn, 95Mo, 143Nd and 147,149 Sm nuclei were performed in the MeV neutron energy region based on the 4.5 MV Van de Graaff accelerator at Peking University. In recent years, our measurements were extended in three aspects. Firstly, measurements were expanded from two-body reactions to three-body reactions such as 10B (n, t2 α). Secondly, the neutron energy region was extended from below 8 MeV to 8 - 11 MeV by using the HI-13 tandem accelerator of China Institute of Atomic Energy (CIAE), with which cross sections of 54,56 Fe(n, α)53,51Cr reactions were measured. Thirdly, based on the newly-built China Spallation Neutron Source (CSNS) Back-n WNS (White Neutron Source), differential and angle-integrated cross sections for 6Li(n, t) and 10B(n, α) reactions were measured in the neutron energy region from 1 eV to 3 MeV.

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