Low‐Temperature Neutron Radiation Damage and Recovery in Beryllium

Delaplace, Joseph; Hillairet, J.; Nicoud, J.C.; Schumacher, Dieter; Vogl, G.

doi:10.1002/pssb.19680290233

Cited by 26 publications

(11 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The aim of the present paper is to quantitatively simulate S c induced defect annealing and defect creation threshold by the use of the thermal spike model and then to explain the different points quoted above. Nuclear defect production rates induced by irradiations have been studied for many metals (Corbert et al 1959;Coltman et al 1967;Delaplace et al 1968;Bauer et al 1969;Simpson and Chaplin 1969;Dibbert et al 1972;Lampert and Schaefer 1972;Maury et al 1973Maury et al , 1976Birtcher et al 1974;Forsch et al 1974;KnOll et al 1974;Dausinger and Schultz 1975;Mcllwain et al 1975;Myhra and Gardiner 1975;Wells and Russell 1976;Averback and Merkle 1977;Dural et al 1977;Nakagawa et al 1977;Vajde 1977;Young 1978;Dunlop et al 1982Dunlop et al , 1987Dunlop et al , 1988Dunlop et al , 1989bIwase et al 1985Iwase et al , 1986Iwase et al , 1987Iwase et al , 1988Iwase et al , 1990Iwase et al , 1992aBois and Beuneu 1989;Henry et al 1992;Dammak et al 1993a;Dammak 1994;Iwase and Iwata 1994). In these materials, the thermal stability of defects created by nuclear collisions has been studied by thermal annealing after irradiations.…”

Section: Introductionmentioning

confidence: 99%

Transient thermal process induced by swift heavy ions: Defect annealing and defect creation in Fe and Ni

Dufour¹,

Wang

Paumier

et al. 1999

Bull Mater Sci

View full text Add to dashboard Cite

In the present paper, a method is proposed to quantitatively estimate the nuclear defect annealing by the electronic stopping power S. The spatial distribulion of defects created in metals by nudear collisions is known from numerical calculation based on the binary collisions with screened Coulomb potential. In the framework of the thermal spike model, S~ induced annealing of nuclear defects is simulated without considering athermal recombination. These calculations are applied to iron and nickel. The agreement between experiment and simulation in iron allows to determine the electron-phonon coupling value for iron. The defect creation by S e arises when the energy deposited on the atoms overcomes the energy necessary to melt the material.

show abstract

Section: Introductionmentioning

confidence: 99%

Transient thermal process induced by swift heavy ions: Defect annealing and defect creation in Fe and Ni

Dufour¹,

Wang

Paumier

et al. 1999

Bull Mater Sci

View full text Add to dashboard Cite

show abstract

“…The radiation-induced resistivity increments are about three times smaller than those observed in beryllium under identical experimental conditions [4].…”

Section: Damage Productionmentioning

confidence: 93%

“…Several years ago, Blewitt et al [l] measured the isochronal recovery of the electrical resistivity of magnesium neutron-irradiated at 20 OK. Quite recently, O'Neal and Chaplin [2] published some preliminary data on the recovery of the electrical resistivity after irradiation with 0.3 to 0. 4 MeV electrons a t 4.2 OK.…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Neutron Radiation Damage and Recovery in Magnesium

Delaplace

Hillairet

Nicoud

et al. 1968

Physica Status Solidi (b)

Self Cite

View full text Add to dashboard Cite

In magnesium neutron-irradiated at 4.2 OK the defect production and the subsequent recovery up to 360 OK were studied by means of electrical resistivity measurements. Additional experimental evidence is presented from preliminary stored energy, internal friction, and electron microscope studies on neutron-irradiated magnesium, and from electrical resistivity measurements on electron-irradiated magnesium. The principal recovery peak occurs between 90 and 160 OK.On a irradi6 du magn6sium par des neutrons A, 4.2 O K et BtudiB la creation et la restauration de dbfauts oristallins par des mesures de rBsistivit6 Blectrique. Nous presentons Bgalement des r6sultats preliminaires des Btudes de l'hergie emmagazinhe, du frottement intern, et de la microscopie Blectronique sur du magnBsium irradiB aux neutrons, et des mesures de la rbsistivitb Blectrique du magnBsium irradiB aux Blectrons. Le stade principal de la restauration apparait entre 90 et 160 OK.

show abstract

“…single vacancies or self interstitials. Irradiation-induced defects have been shown to be mobile in beryllium at room temperature [11,12] and can therefore diffuse to sinks such as the surface or grain boundaries to annihilate, or face annihilation upon encountering an anti-defect. Some defects will be trapped by forming immobile impurity-defect complexes with the implanted projectile [13], preferably at the end of the collision cascade.…”

Section: Tpd Measurementsmentioning

confidence: 99%

Structure-dependent deuterium release from ion implanted beryllium: Comparison between Be(1 12¯0) and Be(poly)

Oberkofler¹,

Reinelt²,

Lindig³

et al. 2009

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

The temperature-driven release of deuterium implanted as keV ions into metallic beryllium is measured by temperature programmed desorption (TPD). TPD spectra from single and polycrystalline Be implanted with 1 keV ions are compared.The high temperature desorption stage (T > 700 K) is attributed to the release of deuterium trapped at several types of energetically different ion-induced defects. A release peak around 850 K is recorded in the single crystal, while in the polycrystal all deuterium desorbs below this temperature. An increase in the maximum release temperature is observed after implantation of the polycrystal with higher ion energies (2 and 3 keV). We propose an interpretation of the experimental results based on two types of traps, with depth distributions adapted to the implantation energy.Preliminary TMAP7 calculations qualitatively reproduce the shifts in the maximum desorption temperature, observed in the polycrystal at different implantation energies. The difference between the single and the polycrystal is explained by a higher density of surviving defects in the single crystal. Diffusion of mobile defects to grain boundaries and subsequent annihilation is proposed as the dominant mechanism for Preprint submitted to Elsevier 7 May 2009 differences in deuterium desorption from Be(1 12 0) and Be(poly).

show abstract

Low‐Temperature Neutron Radiation Damage and Recovery in Beryllium

Cited by 26 publications

References 20 publications

Transient thermal process induced by swift heavy ions: Defect annealing and defect creation in Fe and Ni

Transient thermal process induced by swift heavy ions: Defect annealing and defect creation in Fe and Ni

Low Temperature Neutron Radiation Damage and Recovery in Magnesium

Structure-dependent deuterium release from ion implanted beryllium: Comparison between Be(1 12¯0) and Be(poly)

Contact Info

Product

Resources

About