Nuclear Instruments and Methods in Physics Research A 537 (2005) 286–290 The particularity of radiation modification of surface of (Li,Na)F single crystals for thin scintillation layers and screen preparation T.S. Koroleva a,Ã , B.V. Shulgin b , A.N. Tcherepanov b , V.Yu. Ivanov b , F.G. Neshov b , V.S. Kulikauskas c , C. Pedrini d , M.M. Kidibaev e a National Academy of Sciences, 720071 Bishkek, Kyrgyz Republic, Kyrgyzstan b Ural State Technical University, 620002 Ekaterinburg, Russia c Moscow State University, 119899 Moscow, Russia d Laboratoire de Physico-Chimie des Mate´riaux Luminescents Unite´Mixte de Recherche 5620 CNRS, Universite´Lyon 1, Campus de la Doua, 69622 Villeurbanne, France e Issyk-Kul State University, 722360 Karakol, Kyrgyz Republic, Kyrgyzstan Available online 25 August 2004 Abstract The results of investigation of particularity of radiation damage, modification of surface layers of (Li,Na)F single crystals, developing of scintillation heterostructures and scintillation screens with microns resolution on the base of (Li, Na)F single crystals are presented. The thin layered color center heterostructures and thin scintillation screens with high local resolution (35 mm) have been developed by using pulse electron and He + -ions beams. r 2004 Published by Elsevier B.V. PACS: 70 Keywords: Single crystals; Color centers; Radiation defects; Radioluminescence; Scintillation geterostructures and screens 1. Introduction Compounds based on single crystals (Li,Na)F are known as thin-layer color-center scintillators [1]. Some new effects of modification of near-surface layers of (Li,Na)F, (Li,Na)F–Me and (Li,Na)- F–U,Me single crystals under electron beams and beams of He + -ions have been investigated. Radia- tion-induced changes on the surface layers of the crystals were found by some optical methods and directly by Rutherford backscattering. As these form luminescent centers, irradiated (Li,Na)F crystals are proposed for scintillation heterostructures and scin- tillation color center screens. ARTICLE IN PRESS www.elsevier.com/locate/nima 0168-9002/$-see front matter r 2004 Published by Elsevier B.V. doi:10.1016/j.nima.2004.08.028 Ã Corresponding author. Tel.: +996-312-662-666; fax: +996- 312-24-36-07. E-mail address: koroleva@aknet.kg (T.S. Koroleva).