Charge Exchange Cross Sections Measured at Low Energies in Q Machines

1972 ◽  
Vol 43 (6) ◽  
pp. 945-947 ◽  
Author(s):  
S. A. Andersen ◽  
V. O. Jensen ◽  
P. Michelsen
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Low Energies

The exchange of charge between ions and atoms

1951 ◽  
Vol 205 (1082) ◽  
pp. 421-438 ◽  
Keyword(s):  
Satisfactory Agreement ◽  
Charge Exchange ◽  
Cross Sections ◽  
Vibrational Energy ◽  
Neutral Atoms ◽  
Low Energies

Charge-exchange cross-sections have been measured for ions of between 25 and 900 eV energy in collision with neutral atoms. The method involves collection and measurement of the chargeexchange ions when a beam is passed through gas. The cases A + in A, He + in He are in satisfactory agreement with the measurements of Rostagni, although showing no maxima at low energies. The cases O+ in N 2 , O + in A, and N + in A show abnormally high values which are believed to be due to the presence of m etastable ions, as well as contributions from the nitrogen rotational and vibrational energy. The cases H + in A, in Kr, in Xe and C + in Xe rise with an increasing energy, to a maximum when a Δ E /hv ≏ 1, Δ E being the energy defect of the hv process, v the velocity of the incident ion, and a a parameter of atomic dimensions ~ (5 to 10) 10 -8 cm.

Charge exchange reactions on medium and heavy mass targets at intermediate energies

2019 ◽  
Vol 35 (08) ◽  
pp. 2050045
Author(s):  
Pardeep Singh ◽  
Monika Singh ◽  
Neha Rani
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Energy Charge ◽  
Impulse Approximation ◽  
Mass Region ◽  
Intermediate Energy ◽  
Exchange Reactions ◽  
Plane Wave Impulse Approximation ◽  
Text Type ◽  
Intermediate Energies

The nuclear isotopic structure can be understood easily via the intermediate-energy charge exchange reactions of (p, n) and [Formula: see text]He, [Formula: see text] type. In the current contribution, we present some results for charge exchange reactions induced by 3He on targets lying in mass region [Formula: see text] within the theoretical framework of plane wave impulse approximation (PWIA) and distorted wave impulse approximation (DWIA). Here, the recoil effects in PWIA have also been considered. Particularly, the angular distributions and the unit cross-sections have been calculated and compared with the available data. Further, the importance of inclusion of the exchange contribution in these reactions is also considered, which eventually enhance the matching with data.

State-to-state charge exchange cross sections in high-velocity asymmetric and near-symmetric collisions of 400 MeV Fe26+ions

1983 ◽  
Vol 16 (21) ◽  
pp. 3993-4003 ◽  
Author(s):  
A Chetioui ◽  
K Wohrer ◽  
J P Rozet ◽  
A Jolly ◽  
C Stephan ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
High Velocity ◽  
State Charge

Partial charge exchange and excitation cross sections for C3+ + H collisions

1991 ◽  
Vol 21 (S1) ◽  
pp. S245-S246
Author(s):  
L. F. Errea ◽  
B. Herrero ◽  
L. M�ndez ◽  
O. M� ◽  
A. Riera
Keyword(s):  
Charge Exchange ◽  
Cross Sections ◽  
Partial Charge ◽  
Excitation Cross Sections

Inelastic collisions at low energies

1969 ◽  
Vol 47 (10) ◽  
pp. 1723-1729 ◽  
Author(s):  
A. Dalgarno
Keyword(s):  
Energy Loss ◽  
Cross Sections ◽  
Low Energy ◽  
Inelastic Collisions ◽  
Low Energies ◽  
Low Energy Electrons ◽  
The Cross ◽  
Loss Rates

A summary is presented of the processes by which low energy electrons lose energy in moving through the atmosphere and estimates are given of the cross sections and energy loss rates. The mechanisms by which thermal electrons cool are described and the cooling efficiencies are listed.

scholarly journals The feasibility of measuring the nuclear reaction cross sections at energies of several KeV in a target under laser compression

1987 ◽  
Vol 5 (2) ◽  
pp. 399-404 ◽  
Author(s):  
V. I. Kukulin ◽  
V. M. Krasnopol'sky ◽  
V. T. Voronchev
Keyword(s):  
Nuclear Reaction ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Velocity Distribution Function ◽  
Reaction Cross ◽  
Straightforward Method ◽  
Energy Behaviour ◽  
Low Energies ◽  
Ion Velocity Distribution Function ◽  
Reaction Cross Sections

The work proposes a straightforward method for determining the nuclear reaction cross sections at extremely low energies (E ≃ 1–100 keV) on the basis of the measurements of the relative yield of fast particles which are products of the nuclear reactions in a target under laser compression. On the other hand, the proposed method makes it possible to find the averaged form of the ion velocity distribution function if the low-energy behaviour of the respective cross sections is known.

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