Research output: Contribution to journal › Conference article › peer-review
In order to study radiation stability of the neutron supermirror coatings, the effect of large irradiation doses on polarizing (FeCoV/TiZr) and non-polarizing (NiMo/Ti and Ni/Ti) supermirrors has been studied. The samples were irradiated at the WWR-M reactor (Gatchina) inside a vertical channel behind the Be reflector, where the flux of thermal neutrons and neutrons with energies exceeding 1 MeV was, respectively, (0.6-1) × 1013 and 2 × 1011 cm-2 s-1. During irradiation the temperature of the samples did not exceed 70°C. The data obtained at the reflectometer RPN-2M (PNPI) for FeCoV/TiZr and NiMo/Ti supermirrors (produced in PNPI) and for Ni/Ti supermirrors (produced in PSI), irradiated with different doses, are presented. The polarizing efficiency and the reflectivity of the supermirrors sputtered onto float-glass substrates have not revealed significant changes for the fluences up to 1019 cm-2.
Original language | English |
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Pages (from-to) | 136-139 |
Number of pages | 4 |
Journal | Physica B: Condensed Matter |
Volume | 297 |
Issue number | 1-4 |
DOIs | |
State | Published - Mar 2001 |
Event | Proceeding of the 3rd International Workshop on Polarised Neutrons - Gatchina, Russian Federation Duration: 20 Jun 2000 → … |
ID: 86507229