G.M. Bartenev, A.D. Tsyganov, E.P. Prokop’ev^a, A.Z. Varisov
^aRussian Federation State Scientific Center ‘A.I. Alikhanov Institute of Theoretical and Experimental Physics’, ul. Bolshaya Cheremushkinskaya 25, Moscow, 117259, Russian Federation

CONTENTS
1. Average lifetimes of positrons in ionic crystals 72
2. Relative counting rate of three-photon coincidences 74
3. Angular correlation of γ quanta in two-photon annihilation of positrons 74
4. Positron states in ionic crystals 77
Cited Literature 79

PACS: 78.70.Bj
DOI: 10.1070/PU1971v014n01ABEH004443
URL: https://ufn.ru/en/articles/1971/1/e/
Citation: Bartenev G M, Tsyganov A D, Prokop’ev E P, Varisov A Z "Annihilation of positrons in ionic crystals" Sov. Phys. Usp. 14 72–81 (1971)

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Оригинал: Бартенев Г М, Цыганов А Д, Прокопьев Е П, Варисов А З «Аннигиляция позитронов в ионных кристаллах» УФН 103 339–354 (1971); DOI: 10.3367/UFNr.0103.197102e.0339