Comment on the Positron Surface-State Lifetime

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Comment on “The Ocular Surface Chemical Burns”

We have read the paper entitled “The Ocular Surface Chemical Burns” by M. Eslani et al. with great interest [1]. We congratulate the authors that they composed a thorough review with precious pearls and would like to make a contribution. In case of a chemical injury, if stromal nerve endings get seriously harmed, sensation and pain could be reduced. This would be in contradiction with the sever...

متن کامل

Single shot positron annihilation lifetime spectroscopy

Recent developments in positron trapping technology have made possible experimentation with dense interacting positronium gases. Along with these capabilities comes a need for suitable measurement techniques, and accordingly we have developed a method to measure positronium lifetimes from a single intense burst of positrons. Our method is based on recording the anode signal from a photomultipli...

متن کامل

Positron annihilation lifetime spectroscopy in nickel ferrite and iron oxide nanopowders

In this study, a positron annihilation lifetime spectrometer was set up and its resolution was optimized. The spectrometer is a fast-slow arrangement with time resolution of 250 ps. To obtain lifetime components and their intensities from analyzing positron annihilation lifetime spectrum, the Pascual software is used. Positrons are from a source of radioactive 22NaCl with 20 μCi activity enclos...

متن کامل

Positron Lifetime Calculations of Hexagonal Metals with the True Geometry

The approaches to get lifetimes of the hexagonal metals have been performed making use of the face centred cubic (f.c.c.) structure, instead of the real hexagonal one. Although some structural reasons allow this approximation, it is expected to fail when free volume is created in the solid. In this work, we have used the real hexagonal geometry to study these metals. For the cases of bulk, mono...

متن کامل

Comment on ‘‘Quantum State Transfer Between Matter

Transfer Between Matter and Light’’ Matsukevich and Kuzmich (1) describe an interesting experiment directed toward the realization of scalable quantum networks through the protocol of (2). In particular, they demonstrate coherence between two atomic ensembles comprising two cylindrical volumes of cold rubidium atoms within a single magnetooptical trap. The authors claim that their measurements ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physical Review Letters

سال: 1984

ISSN: 0031-9007

DOI: 10.1103/physrevlett.53.1298