Radiation Hardness of Nd:GdVO4 Laser Crystal under γ-Ray Irradiation


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The radiation hardness of neodymium-doped gadolinium vanadate crystal (Nd:GdVO4) has been investigated. Crystal with sizes of 4×4×8 mm doped to a level of 0.5% Nd3+ and (for comparison) undoped GdVO4 crystal were γ-irradiated by a 60Co source to an absorbed dose of about 106 to 107 rad. The photoinduced absorption spectra of the crystals have been studied. Intense lasing with a differential efficiency up to about 25% was obtained in an irradiated Nd:GdVO4 crystal. It is shown that irradiation of a crystal up to a dose of 107 rad does not reduce significantly its laser efficiency.

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M. Ashurov

Institute of Nuclear Physics of the Academy of Sciences of Uzbekistan

Autor responsável pela correspondência
Email: ashurov49@mail.ru
Uzbequistão, Mirzo Ulugbek District, Ulugbek Village, Tashkent, 100214

Yu. Zavartsev

Prokhorov General Physics Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: zavart@lsk.gpi.ru
Rússia, ul. Vavilova 38, Moscow, 119991

A. Zagumennyi

Institute of Nuclear Physics of the Academy of Sciences of Uzbekistan

Autor responsável pela correspondência
Email: zagumen@lsk.gpi.ru
Uzbequistão, Mirzo Ulugbek District, Ulugbek Village, Tashkent, 100214

Sh. Ismoilov

Institute of Nuclear Physics of the Academy of Sciences of Uzbekistan

Autor responsável pela correspondência
Email: shismoilov@yandex.com
Uzbequistão, Mirzo Ulugbek District, Ulugbek Village, Tashkent, 100214

Yu. Kalachev

Prokhorov General Physics Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: kalachev@kapella.gpi.ru
Rússia, ul. Vavilova 38, Moscow, 119991

S. Kutovoi

Prokhorov General Physics Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: kutovoy@lsk.gpi.ru
Rússia, ul. Vavilova 38, Moscow, 119991

V. Mikhailov

Prokhorov General Physics Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: mihailov@kapella.gpi.ru
Rússia, ul. Vavilova 38, Moscow, 119991

I. Nuritdinov

Institute of Nuclear Physics of the Academy of Sciences of Uzbekistan

Autor responsável pela correspondência
Email: izzatilloh@yahoo.com
Uzbequistão, Mirzo Ulugbek District, Ulugbek Village, Tashkent, 100214

I. Shcherbakov

Prokhorov General Physics Institute of the Russian Academy of Sciences

Autor responsável pela correspondência
Email: ivan@kapella.gpi.ru
Rússia, ul. Vavilova 38, Moscow, 119991

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