Thin-target excitation functions, cross-sections and optimised thick-target yields for natMo(p,xn)94g,95m,95g,96(m+g)Tc nuclear reactions induced by protons from threshold up to 44MeV. No Carrier Added radiochemical separation and quality control

2002 ◽  
Vol 57 (5) ◽  
pp. 617-635 ◽  
Author(s):  
Mauro Bonardi ◽  
Claudio Birattari ◽  
Flavia Groppi ◽  
Enrico Sabbioni
Keyword(s):  
Quality Control ◽  
Cross Sections ◽  
Radiochemical Separation ◽  
Nuclear Reactions ◽  
Thick Target ◽  
Excitation Functions ◽  
Thin Target ◽  
No Carrier Added

scholarly journals Excitation functions of proton induced nuclear reactions on natFe up to 16 MeV, with emphasis on radiochemical determination of low cross sections

2017 ◽  
Vol 105 (12) ◽  
Author(s):  
Md. Shuza Uddin ◽  
Animesh Kumer Chakraborty ◽  
Stefan Spellerberg ◽  
Ingo Spahn ◽  
Md. Asad Shariff ◽  
...  
Keyword(s):  
Cross Sections ◽  
Nuclear Reactions ◽  
Excitation Functions ◽  
Radiochemical Determination

AbstractExcitation functions for the formation of the radionuclides

STUDY OF ISOMERIC CROSS-SECTION RATIO AND PRE-EQUILIBRIUM FRACTION IN PROTON AND ALPHA PARTICLE INDUCED NUCLEAR REACTIONS ON 197Au

2012 ◽  
Vol 21 (06) ◽  
pp. 1250059 ◽  
Author(s):  
B. SATHEESH ◽  
M. M. MUSTHAFA ◽  
B. P. SINGH ◽  
R. PRASAD
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Energy Difference ◽  
Activation Technique ◽  
Cross Section Ratio ◽  
Excitation Functions ◽  
Section Ratio ◽  
Isomeric Cross Section Ratio ◽  
Equilibrium Emission

Excitation functions for the reactions 197 Au(p,n) 197g Hg and 197 Au(p,n) 197m Hg have been measured over the energy ranges from threshold up to 20 MeV using stacked foil activation technique. The isomeric cross-section ratio σm/(σm+σg) for the formation of 197g, m Hg was determined. The excitation functions and isomeric cross-section ratios were calculated for the reactions 197 Au(p,n) 197g,m Hg , 197 Au(p,2n) 196 Hg , 197 Au(p,3n) 195g,m Hg , 197 Au(p,4n) 194 Hg , 197 Au(p,5n) 193g,m Hg , 197 Au (α, n )200 Tl , 197 Au (α, 2n )199 Tl , 197 Au (α, 3n )198g,m Tl , 197 Au (α, 4n )197 Tl and 197 Au (α, 5n )196g,m Tl from reaction threshold up to 40 MeV for proton induced reactions and 80 MeV for alpha induced reactions. The results were compared with the theoretical cross-sections calculated by means of the code EMPIRE-II and with the available literature data, which makes use of the Hauser Feshbach model for the compound nuclear calculations and the exciton model for the pre-equilibrium emission part. The isomeric cross-section ratio is found to depend strongly on the relative spins of the isomeric and ground state, energy difference between the levels, presence of intermediate states and some dependence on decay modes and on the onset of pre-equilibrium emission.

scholarly journals Investigation of cross sections of deuteron induced nuclear reactions on selenium up to 50 MeV

2021 ◽  
Vol 57 (4) ◽  
Author(s):  
Ferenc Tárkányi ◽  
Sándor Takács ◽  
Ferenc Ditrói ◽  
Zoltán Szűcs ◽  
Károly Brezovcsik ◽  
...  
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Gamma Ray ◽  
Nuclear Reactions ◽  
Particle Energy ◽  
Gamma Ray Spectrometry ◽  
Excitation Functions ◽  
On Line ◽  
Theoretical Model Codes ◽  
Activation Cross Sections

AbstractIn the frame of a systematic study of deuteron induced nuclear reactions on all elements, activation cross sections on $$^{\mathrm {nat}}$$ nat Se were investigated. Excitation functions were measured up to 50 MeV particle energy for production of $$^{\mathrm {82}}$$ 82 Br(m$$+)$$ + ) ,$$^{\mathrm {80m}}$$ 80 m Br, $$^{\mathrm {77}}$$ 77 Br(m$$+)$$ + ) ,$$^{\mathrm {76}}$$ 76 Br(m$$+)$$ + ) , $$^{\mathrm {75}}$$ 75 Br, $$^{\mathrm {75}}$$ 75 Se(cum), $$^{\mathrm {73}}$$ 73 Se(cum), $$^{\mathrm {76}}$$ 76 As,$$^{\mathrm {74}}$$ 74 As, $$^{\mathrm {73}}$$ 73 As(cum), $$^{\mathrm {72}}$$ 72 As and $$^{\mathrm {71}}$$ 71 As(cum) by using the activation method through stacked foil irradiation followed by off-line gamma-ray spectrometry. The experimental results were compared to the earlier experimental data and to excitation functions calculated with the ALICE-D and EMPIRE-D theoretical model codes and data given in the TENDL-2019 on-line library based on TALYS calculations.

scholarly journals Activation cross section data of deuteron induced nuclear reactions on rubidium up to 50 MeV

2021 ◽  
Vol 57 (1) ◽  
Author(s):  
Ferenc Tárkányi ◽  
Alex Hermanne ◽  
Ferenc Ditrói ◽  
Sándor Takács ◽  
Anatolij V. Ignatyuk ◽  
...  
Keyword(s):  
Cross Sections ◽  
Gamma Ray ◽  
Nuclear Reactions ◽  
Thick Target ◽  
Gamma Ray Spectrometry ◽  
Activation Cross Section ◽  
Experimental Database ◽  
Practical Applications ◽  
Section Data ◽  
First Time

AbstractActivation cross sections of the $$^{\mathrm {nat}}\hbox {Rb (d,xn)}^{87\mathrm {m,85m,85g,83,82}}\hbox {Sr}$$ nat Rb (d,xn) 87 m , 85 m , 85 g , 83 , 82 Sr , $$^{\mathrm {nat}}\hbox {Rb(d,x)}^{\mathrm {86,84,83,82m}}\hbox {Rb}$$ nat Rb(d,x) 86 , 84 , 83 , 82 m Rb and $$^{\mathrm {nat}}\hbox {Rb(d,x)}^{85\mathrm {m}}\hbox {Kr}$$ nat Rb(d,x) 85 m Kr nuclear reactions have been measured for the first time through an activation method combining the stacked foil irradiation technique and gamma-ray spectrometry. The provided cross sections from the present investigation are all new, in such a way contribute to the completeness of the experimental database. The experimental cross sections were compared with the theoretical prediction in the TENDL-2019 TALYS based library and with our calculation using ALICE-D and EMPIRE-D model codes in order the improve their predictivity. Thick target production yields were calculated form the new cross sections for all investigated radioisotopes. Practical applications of the results are shortly discussed.

Calculations of Excitation Functions to Produce 88Y via Various Nuclear Reactions by ALICE/91 and TALYS-1.0 Codes

2010 ◽  
Author(s):  
Tayeb Kakavand ◽  
Morteza Taghilo
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Excitation Functions

Excitation functions were calculated by the ALICE/91 and TALYS-1.0 codes for natRb(a,xn)88Y, natZr(p,pxn)88Y, natSr(a,xn)88Y, 89Y(p,n)88Y and 88Sr(p,n)88Y reactions. The calculated cross sections were compared with the experimental data. The suitable energy ranges for the production of 88Y for each reaction is reported. From the excitation functions, integral yields of the products were calculated. Finally the suitable reaction was selected for the production of 88Y.

scholarly journals Experimental Determination of Excitation Function Curves through the Measurement of Thick Target Yields in Liquid Targets: The Examples of the 68Zn(p,n)68Ga and 64Zn(p,α)61Cu Nuclear Reactions

Instruments ◽  
2022 ◽  
Vol 6 (1) ◽  
pp. 3
Author(s):  
Sergio J. C. do Carmo ◽  
Francisco Alves
Keyword(s):  
Experimental Determination ◽  
Excitation Function ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Thick Target ◽  
Yield Curves ◽  
Thick Target Yield ◽  
Target Yield ◽  
Working Principle

The present work describes a method to determine excitation function curves and, therefore, cross-sections, making use of the irradiation of liquid targets at distinct energies in a biomedical cyclotron. The method relies on the derivative of experimentally measured thick target yield curves to determine the corresponding excitation function curves. The technique is presented as a valid and practical alternative to the commonly used activation method combined with the stack monitor technique, whose implementation in liquid targets offers practical difficulties. The working principle is exemplified by presenting the results obtained for the clinically relevant 68Zn(p,n)68Ga and the 64Zn(p,α)61Cu nuclear reactions, obtained though the irradiation of liquid targets containing dissolved natural zinc.

NUCLEAR REACTIONS INDUCED IN TANTALUM BY PROTONS OF ENERGY UP TO 84 MEV

1963 ◽  
Vol 41 (10) ◽  
pp. 2516-2532 ◽  
Author(s):  
C. L. Rao ◽  
L. Yaffe
Keyword(s):  
Cross Sections ◽  
Half Life ◽  
Reasonable Agreement ◽  
Nuclear Reactions ◽  
Schematic Model ◽  
Radiation Characteristics ◽  
Excitation Functions ◽  
Γ Rays ◽  
The Cross

Nuclear reactions induced in tantalum by protons of energy up to 84 Mev have been studied and excitation functions obtained for products formed by (p,xn), (p,pxn), (p,2pxn), and (p,3pxn) reactions. Radiation characteristics of the products were redetermined. Previously unreported γ-rays with energies 90 to 1050 kev have been found for W176, and 113 kev for W177. A new half-life of 2.7 ± 0.1 hr for W176 is reported. The cross sections for the (p,xn) reactions were compared with the values predicted by Jackson's schematic model and found to be in reasonable agreement. More complex reactions are discussed in the light of current nuclear theories.

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