Research output: Contribution to journal › Conference article › peer-review
The effect of large irradiation doses on polarizing and non-polarizing supermirrors. / Ul'yanov, V. A.; Boni, P.; Khamov, V. N.; Orlov, S. P.; Peskov, B. G.; Pleshanov, N. K.; Pusenkov, V. M.; Schebetov, A. F.; Serebrov, A. P.; Sushkov, P. A.; Syromyatnikov, V. G.
In: Physica B: Condensed Matter, Vol. 297, No. 1-4, 03.2001, p. 136-139.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - The effect of large irradiation doses on polarizing and non-polarizing supermirrors
AU - Ul'yanov, V. A.
AU - Boni, P.
AU - Khamov, V. N.
AU - Orlov, S. P.
AU - Peskov, B. G.
AU - Pleshanov, N. K.
AU - Pusenkov, V. M.
AU - Schebetov, A. F.
AU - Serebrov, A. P.
AU - Sushkov, P. A.
AU - Syromyatnikov, V. G.
PY - 2001/3
Y1 - 2001/3
N2 - 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.
AB - 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.
KW - Irradiation stability
KW - Neutron reflectometry
KW - Neutron supermirrors
UR - http://www.scopus.com/inward/record.url?scp=14344273307&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(00)00870-X
DO - 10.1016/S0921-4526(00)00870-X
M3 - Conference article
AN - SCOPUS:14344273307
VL - 297
SP - 136
EP - 139
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 1-4
T2 - Proceeding of the 3rd International Workshop on Polarised Neutrons
Y2 - 20 June 2000
ER -
ID: 86507229