Measurement and Covariance Analysis of Reaction Cross Sections for 58Ni(n,p)58Co Relative to Cross Section for Formation of 97Zr Fission Product in Neutron-Induced Fission of 232Th and 238U at Effective Neutron Energies En = 5.89, 10.11, and 15.87 MeV

2015 ◽  
Vol 179 (4) ◽  
pp. 423-433 ◽  
Author(s):  
B. S. Shivashankar ◽  
S. Ganesan ◽  
H. Naik ◽  
S. V. Suryanarayana ◽  
N. Sreekumaran Nair ◽  
...  
Keyword(s):  
Fission Product ◽  
Cross Section ◽  
Cross Sections ◽  
Reaction Cross ◽  
Covariance Analysis ◽  
Induced Fission ◽  
Effective Neutron ◽  
Reaction Cross Sections

Measurement and covariance analysis of 232Th(n, 2n)231Th reaction cross sections at the effective neutron energies of 8.97 and 16.52 MeV

2018 ◽  
Vol 318 (3) ◽  
pp. 1893-1900 ◽  
Author(s):  
Meghna Karkera ◽  
Haladhara Naik ◽  
Sripathi Punchithaya ◽  
Manjunatha Prasad ◽  
Santhi Sheela Yeraguntla ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Covariance Analysis ◽  
Effective Neutron ◽  
Reaction Cross Sections

scholarly journals Measurement of the 241Am(n,2n)240Am cross section at 17.5 MeV

2019 ◽  
Vol 21 ◽  
pp. 160
Author(s):  
A. Kalamara ◽  
R. Vlastou ◽  
M. Diakaki ◽  
M. Kokkoris ◽  
M. Anastasiou ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Beam ◽  
Cross Sections ◽  
Reaction Cross ◽  
Activation Technique ◽  
Tandem Accelerator ◽  
Hpge Detectors ◽  
Reaction Cross Sections ◽  
Reference Reaction ◽  
High Radioactivity

The 241Am(n,2n)240Am reaction cross section has been measured at neutron beam energy 17.5 MeV, relative to the 27Al(n,α)24Na, 197Au(n,2n)196Au and 93Nb(n,2n)92mNb reference reaction cross sections, using the activation technique. The irradiation was carried out at the Van der Graaff 5.5 MV Tandem accelerator laboratory of NCSR “Demokritos” with monoenergetic neutron beam provided by means of the 3H(d,n)4He reaction, implementing a new Ti-tritiated target. The high purity Am target has been constructed at IRMM, Geel, Belgium and consisted of 40 mg 241Am in the form of AmO2 pressed into pellet with Al2O3 and encapsulated into Al container. Due to this high radioactivity (5 GBq), the Am target was enclosed in a Pb container for safety reasons. After the end of the irradiation, the activity induced by the neutron beam at the target and reference foils, was measured off-line by two 100%, a 50% and a 16% relative efficiency, HPGe detectors.

Measurement and covariance analysis of 100Mo (n, 2n) 99Mo and 96Mo (n, p) 96Nb reaction cross sections at the incident neutron energy of 14.54 MeV

2020 ◽  
Vol 325 (3) ◽  
pp. 831-840
Author(s):  
Sangeetha Prasanna Ram ◽  
Jayalekshmi Nair ◽  
Saraswatula Venkata Suryanarayana ◽  
Laxman Singh Danu ◽  
Saroj Bishnoi ◽  
...  
Keyword(s):  
Neutron Energy ◽  
Cross Sections ◽  
Reaction Cross ◽  
Covariance Analysis ◽  
Incident Neutron ◽  
Incident Neutron Energy ◽  
Reaction Cross Sections

Measurement of 115In(n,2n)114mIn and 197Au(n,2n)196Au reaction cross sections at the neutron energies of 13.52 and 14.54 MeV with covariance analysis

2020 ◽  
Vol 326 (1) ◽  
pp. 637-645
Author(s):  
A. M. Sunitha ◽  
Kamsali Nagaraja ◽  
H. B. Sachhidananda ◽  
S. V. Suryanarayana ◽  
B. Rudraswamy ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Covariance Analysis ◽  
Reaction Cross Sections

scholarly journals Measurement of 14.54 ± 0.24 MeV neutron activation reaction cross sections of 93Nb, natMo with covariance analysis

2020 ◽  
Vol 325 (3) ◽  
pp. 863-868
Author(s):  
Imran Pasha ◽  
Rudraswamy Basavanna ◽  
Santhi Sheela Yerranguntla ◽  
Saraswatula Venkata Suryanarayana ◽  
Rebecca Pachuau ◽  
...  
Keyword(s):  
Neutron Activation ◽  
Cross Sections ◽  
Reaction Cross ◽  
Covariance Analysis ◽  
Activation Reaction ◽  
Reaction Cross Sections

QUASI-CLASSICAL TRAJECTORY STUDY OF THE REACTION PROBABILITY AND CROSS SECTION OF THE REACTION LiH + H

2013 ◽  
Vol 12 (01) ◽  
pp. 1250093 ◽  
Author(s):  
YULIANG WANG ◽  
JINCHUN ZHANG ◽  
BAOGUO TIAN ◽  
KUN WANG ◽  
XIAORUI LIANG ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Ground State ◽  
Collision Energy ◽  
Energy Surface ◽  
Classical Trajectory ◽  
Reaction Cross ◽  
Reaction Probability ◽  
Title Reaction ◽  
Reaction Cross Sections

Based on the new accurate potential energy surface of the ground state of LiH2 system. Quasi-classical trajectory (QCT) calculations were carried out for the reaction LiH + H . The reaction probability of the title reaction for J = 0 has been calculated. The reaction cross sections were calculated as functions of the collision energy in the range 0.1–2.5 eV. The results were found to be well consistent with the previous real wave packet (RWP) and QCT results.

scholarly journals Chemical Reaction Kinematics

1968 ◽  
Vol 23 (12) ◽  
pp. 2080-2083 ◽  
Author(s):  
D. Hyatt ◽  
K. Lacmann
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Mass Spectrometer ◽  
Cross Sections ◽  
Impulse Approximation ◽  
Reaction Cross ◽  
Molecule Reaction ◽  
Polarization Theory ◽  
Reaction Cross Sections

A Bendix time of flight mass spectrometer has been modified to enable the determination of some ion-molecule reaction cross sections in the energy range 1 — 100 eV.In the reactions studiedX+ + D2 → XD++Dwhere X may be Ar, N2 or CO, the results obtained agree with the predictions of the polarization theory in the range below 10 eV despite the fact that no intermediate complex is formed at these energies. Between about 10—50 eV where spectator stripping occurs the cross section follows an approximate E-l dependence. Above these energies the results are consistent with a transition to a region in which knock-on processes predominate and where an impulse approximation treatment would be valid.

Fission spectrum averaged cross section measurements of some neutron threshold reactions of relevance to medical radionuclide production

2005 ◽  
Vol 93 (9-10) ◽  
Author(s):  
Jamshed H. Zaidi ◽  
M. Arif ◽  
I. Fatima ◽  
Shahida Waheed ◽  
Shujaat Ahmad ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Cross Section ◽  
Cross Sections ◽  
Fission Neutron ◽  
Reaction Cross ◽  
Radionuclide Production ◽  
Fission Neutron Spectrum ◽  
Fission Spectrum ◽  
Medical Radionuclide ◽  
Reaction Cross Sections

SummaryA resume is given of radiochemical measurements of nuclear reaction cross sections relevant to the production of some medically important radionuclides carried out at PINSTECH during the last decade. Systematic studies on fission neutron spectrum averaged cross sections of several threshold reactions, like (

scholarly journals Cross Section Measurements of (n,p) Reactions on Ge Isotopes

2020 ◽  
Vol 27 ◽  
pp. 185
Author(s):  
G. Gkatis ◽  
Rosa Vlastou ◽  
A. Kalamara ◽  
S. Chasapoglou ◽  
M. Kokkoris ◽  
...  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Systematic Investigation ◽  
Reaction Cross ◽  
Isotopic Effect ◽  
Activation Method ◽  
Tandem Accelerator ◽  
Reaction Cross Sections ◽  
Existing Data

The 72,73Ge(n,p)72,73Ga reaction cross sections were measured at the 5.5MV HV Tandem accelerator of  NCSR “Demokritos”, at neutron energies 17.7 and 19.3 MeV by using the activation method. The contamination from the (n,d) and (n,np)  reactions  on 73Ge and 74 Ge, leading to the 72Ge and 73Ge residual nuclei, respectively, has been  taken  into account, implementing the corresponding cross sections from  TENDL-2017. A systematic investigation of the isotopic effect on all Ge isotopes is also presented, from threshold up  to 20MeV, using the present data along with existing data in literature

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