Title of article :
Investigations in high temperature irradiated 6,7LiH and 6LiD, its dynamic nuclear polarization and radiation resistance
Author/Authors :
Goertz، نويسنده , , St. and Bradtke، نويسنده , , Ch. and Dutz، نويسنده , , H. and Gehring، نويسنده , , R. and Meyer، نويسنده , , W. and Plückthun، نويسنده , , M. and Reicherz، نويسنده , , Stefan G. and Runkel، نويسنده , , K. and Thomas، نويسنده , , A.، نويسنده ,
Abstract :
Samples of 7LiH, 6LiD, 6LiH have been irradiated at the Bonn 20 MeV electron preaccelerator under various temperatures and with different radiation doses. The most important paramagnetic defect, the so-called F-center, created during these irradiations has been studied in a conventional EPR spectrometer at liquid nitrogen temperature. Also several samples have been dynamically polarized in both a 4He evaporation cryostat (1 K) and in a 3He4He dilution refrigerator (200 mK) at a magnetic field of 2.5 and 5 T. Finally some selected samples have been exposed to an intense (up to 70 nA) and high energy (1.2 GeV) electron beam at the Bonn Electron Stretcher and Accelerator ELSA.
