Thick target technique for proton induced ionisation cross-section measurements—a re-evaluation

1978 ◽  
Vol 15 (3) ◽  
pp. 335-339 ◽  
Author(s):  
Rashiduzzaman Khan ◽  
D. Crumpton
Keyword(s):  
Cross Section ◽  
Thick Target ◽  
Ionisation Cross Section

Measurements of the N2 2σu ou partial ionisation cross section via (e,2e) experiments

1999 ◽  
Vol 09 (PR6) ◽  
pp. Pr6-119-Pr6-122
Author(s):  
R. Flammin ◽  
E. Fainelli ◽  
L. Avaldi
Keyword(s):  
Cross Section ◽  
Ionisation Cross Section

scholarly journals Cross section and reaction rate of determined from thick target yield measurements

2014 ◽  
Vol 922 ◽  
pp. 112-125 ◽  
Author(s):  
Gy. Gyürky ◽  
M. Vakulenko ◽  
Zs. Fülöp ◽  
Z. Halász ◽  
G.G. Kiss ◽  
...  
Keyword(s):  
Cross Section ◽  
Reaction Rate ◽  
Thick Target ◽  
Thick Target Yield ◽  
Target Yield

Production efficiency and radioisotopic purity of 99mTc formed using the (p,2n) reaction on a highly enriched 100Mo target

2017 ◽  
Vol 32 (17) ◽  
pp. 1740012
Author(s):  
Katarzyna Szkliniarz ◽  
Mateusz Sitarz ◽  
Jerzy Jastrzębski ◽  
Jarosław Choiński ◽  
Andrzej Jakubowski ◽  
...  
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Production Efficiency ◽  
Irradiation Time ◽  
Thick Target ◽  
Bombarding Energy

The [Formula: see text]Tc isomer was produced using the [Formula: see text] reaction on highly enriched [Formula: see text]Mo samples. The Thick Target Yields were determined in the energy range from 16 MeV to 26 MeV and compared with the values calculated using the most recent cross-section recommendations from the literature. The generated impurities were also determined. It was shown that for 99.815 ± 0.010% enriched samples, only reactions induced on [Formula: see text]Mo are of importance. The ratio of the number of atoms of [Formula: see text]Tc to all produced Tc nuclei was studied as a function of irradiation time and bombarding energy.

scholarly journals A benchmarking procedure for PIGE related differential cross-sections

2019 ◽  
Vol 24 ◽  
pp. 36
Author(s):  
M. Axiotis ◽  
A. Lagoyannis ◽  
S. Fazinić ◽  
S. Harrisopulos ◽  
M. Kokkoris ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
A Priori ◽  
Light Element ◽  
Thick Target ◽  
A Priori Knowledge ◽  
Differential Cross Sections ◽  
The World

The application of standard-less PIGE requires the a priori knowledge of the differential cross section of the reaction used for the quantification of each detected light element. Towards this end, a lot of datasets have been published the last few years from several laboratories around the world. The discrepancies found can be resolved by applying a rigorous benchmarking procedure through the measurement of thick target yields. Such a procedure is proposed in the present paper and is applied in the case of the 19F(p,p’γ)19F reaction.

The absolute total cross section and thick target yields of the19F(p,p'γ)19F reaction from 0.5 to 4.3 MeV

1986 ◽  
Vol 94 (1-4) ◽  
pp. 145-149 ◽  
Author(s):  
M. Anwar Chaudhri
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Thick Target ◽  
The Absolute

scholarly journals Low Z Elements of High Grade Metamorphic Rocks by PIXE Analysis – A Comprehensive Review

2020 ◽  
Author(s):  
Avupati Venkata Surya Satyanarayana ◽  
Mokka Jagannadha Rao ◽  
Byreddy Seetharami Reddy
Keyword(s):  
Cross Section ◽  
Analytical Techniques ◽  
Thick Target ◽  
Light Energy ◽  
Low Energy ◽  
High Grade ◽  
X Rays ◽  
Pixe Analysis ◽  
X Ray ◽  
Line Intensities

Abstract. The majority of PIXE analytical study on geosciences has used 3 MeV proton beams for excitation and these studies generally uses the K-X-rays for low Z elements and L-X-rays for high Z elements. The present study of resulting spectra of metamorphic high grade rocks like charnockite can require striping techniques to resolve interference problems between low and high Z elements on the applications of light energy-PIXE using Si (Li) detector. In all forms of X-ray analysis, including thick-target light energy-PIXE, the X-ray signal is a dependent of the ionization cross section and for low-energy protons, the cross section is high for the K shells of light elements and the L shells of heavy elements in charnockite rock providing sufficient fluorescent yield for analytical purposes. For Z > 55, 3 MeV protons cannot ionize K-shell electrons and analysis depends on the use of L-X-ray lines in charnockite rock. Such L-X-ray spectra are complicated and can be affected by interferences K-X-rays from low Z elements. The low Z elements present in the charnockite were identified by previous complementary analytical techniques, but not identified in this study due to the above PIXE experiment limitations, and also particularly due to the dimensions of Si (Li) detector because of low energy K-X-rays of the elements absorbed by the detector window. Both interferences complexity and detector efficiency can lead to difficulties and ambiguity in the interpretation of spectra of low Z charnockite composition, a problem that is exacerbated by uncertainty in relative K-X-ray line intensities of low Z elements. From this investigation, the light energy-PIXE is ideal for the analysis of low Z 

L subshell ionisation cross section of gold by 8–15 MeV Si ions

1999 ◽  
Vol 152 (2-3) ◽  
pp. 207-211 ◽  
Author(s):  
D. Mitra ◽  
M. Sarkar ◽  
D. Bhattacharya ◽  
P. Sen ◽  
G. Lapicki
Keyword(s):  
Cross Section ◽  
Ionisation Cross Section

Appearance potential and electron impact ionisation cross-section of C60

1992 ◽  
Vol 114 (1-2) ◽  
pp. R1-R8 ◽  
Author(s):  
M. Sai Baba ◽  
T.S. Lakshmi Narasimhan ◽  
R. Balasubramanian ◽  
C.K. Mathews
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Appearance Potential ◽  
Ionisation Cross Section ◽  
Impact Ionisation

The total ionisation cross section and the large angle differential cross section for the system He(21S, 23S) + Ar, N2

1986 ◽  
Vol 103 (1) ◽  
pp. 119-135 ◽  
Author(s):  
J.P.C. Kroon ◽  
A.Cottaar Haverkorn ◽  
H.W.C. Beijerinck
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Large Angle ◽  
Ionisation Cross Section
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