摘要:

In this paper we present fading experimental measurements on CaSO4:Dy (TLD-900) ribbons and computer calculated evaluations of single glow peak characteristics and their time dependence.The same method is also used to identify the time elapsed since an anomalous irradiation superposed to the normal one

ISSN:0033-7579    

DOI:10.1080/00337578308221730

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

The calorimetric-current reference method was used for measurements of the energy reflection coefficientsRefor Ti, Cu and Au bombarded with 2.5-8.3 keV D and He ions at angles of incidence up to 80°. Data for all the kinds of targets and ions at normal incidence scale within a factor of 1.5 with reduced energy ε. The results are in good agreement with other experimental and theoretical results. The angle dependence ofRefor the copper target coincides with the theoretical results of Oen and Robinson. In the ε range from 0.1 to 4.0,Rewas found to be a function of ✓(ε) cos α only. The obtained analytical approximation of the experimental results allowReto be determined for various ε and angles of incidence.

ISSN:0033-7579    

DOI:10.1080/00337578308221731

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

The problem of Auger line narrowness observed from light elements such as Mg, Al, Si bombarded by heavy particles is examined. For this, two experimental studies were made.The study of energy-resolved polar angular distributions of secondary electrons emitted from polycrystalline targets shows that the Auger electrons belonging to the L23M1*M23* peak are distributed according to a cosine law, not a spherical one.On the other hand, the Auger spectra (of the same elements) arising from just the incident electron beam, when the sample is bombarded simultaneously by heavy ions and electrons, keep identical features to those observed when the sample is only irradiated by incident electrons.These results lead to the following conclusions: the Auger line narrowness can be explained neither by an emission from excited sputtered atoms nor by radiation damage created by ionic bombardment.The valence band electrons are assumed to be localized due to coupling between the displacement of the charged ionic core and the screening electron energy states

ISSN:0033-7579    

DOI:10.1080/00337578308221732

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

PULSED NEUTRON SCATTERING, by C. G. Windsor, Taylor and Francis Ltd. (London), 1981. 432 pp., £25.

ISSN:0033-7579    

DOI:10.1080/00337578308221733

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor