Bremsstrahlung in heavy-ion reactions

Jakubassa, D.H.; Kleber, Markus

doi:10.1007/bf01435753

Cited by 60 publications

(10 citation statements)

References 11 publications

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“…The impulse approximation, first introduced for RI by Jakubassa and Kleber (1975) follows from (3.7) if c P q;E is replaced with the (on-shell) function c P q having energy E ¼ q 2 =2. For Z T ¼ 0, one has E T i ¼ 0 and q ¼ Àv (as required by j T i ðq þ vÞ), and it follows from (3.9) that this on-shell approximation becomes exact.…”

Section: Article In Pressmentioning

confidence: 99%

Bremsstrahlung during electron capture to continuum

Jakubaßa-Amundsen¹

2006

Radiation Physics and Chemistry

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Section: Article In Pressmentioning

confidence: 99%

Bremsstrahlung during electron capture to continuum

Jakubaßa-Amundsen¹

2006

Radiation Physics and Chemistry

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“…There are no endpoints in the MO x-ray spectra, and no signature in the spectra positively indicating I sa MO x rays [10]. Thus possible contributions from other processes also giving continuum spectra, such as nucleus-nucleus bremsstrahlung (NNB) [12, 13J, secondary electron bremsstrahlung (SEB) [14], and radiative ionization (RI) [15] may also be present. Two different processes have been theorized for the production of MO xrays [16,17]: a one-collision process in which the lsa vacancy is created, usually by direct radial or rotational coupling of the l sa electron to the continuum, in the same collision in which it radiates, and a two-collision process in which the K vacancy is brought into the collision by the projectile having been formed in a previous encounter.…”

Section: Introductionmentioning

confidence: 99%

A scaling law for molecular orbital X Rays

Anholt¹

1978

Z Physik A

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Absolute molecular-orbital thick-target x-ray yields have been measured for a wide variety of targets using 1.4-MeV/amu 5~ 5SNi, and S6Kr and 2.4-MeV/amu 84Kr beams. A scaling law for calculating two-collision molecular-orbital x-ray yields is derived which fits the shape of the measured yields very well in all collision systems examined, and the intensity within a factor of two for near symmetric ion-atom encounters.

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“…Therefore, we tried to explain our results by SEB and PB and calculated the yields of these radiations by means of the computer codes SECELB and CONTI [43, based on the theories of Folkmann et al [1] and Alder et al [3], respectively. Contributions of radiative electron capture [6] and inner bremsstrahlung [7] were found to be negligible for our experimental conditions. …”

Section: Resultsmentioning

confidence: 97%

Emission of X-ray continua by bombardment of thick Al, Si and Ti targets with protons and14N ions

et al. 1978

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Using thick targets the continuous X-ray spectra arising in the collision systems Al+p (0.5-7 MeV), Si + p (0.6-6 MeV), Si + 14N (6 MeV, 14 MeV), Ti + p (1 MeV) and Ti + 14N (14 MeV) were measured by means of a Si(Li) detector. Total yields were derived and compared with numerical results of calculations for secondary electron and nuclear bremsstrahlung. For Si and Ti the continuous spectra from one and the same target bombarded with protons and 14N ions of equal velocity were investigated. Drastic deviations from the Z 2 scaling have been found. They could be attributed to contributions of MO radiation originating by recoil of target atoms. The influence of characteristic line profiles on the measured spectra is also discussed.

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Bremsstrahlung in heavy-ion reactions

Cited by 60 publications

References 11 publications

Bremsstrahlung during electron capture to continuum

Bremsstrahlung during electron capture to continuum

A scaling law for molecular orbital X Rays

Emission of X-ray continua by bombardment of thick Al, Si and Ti targets with protons and14N ions

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