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Tests of Model of Absolute Measuring Instrument of Synchrotron Radiation Power

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A model of absolute measuring instrument of power of synchrotron radiation in soft X-ray range of wavelengths of 8 - 0.4 nm based on high-temperature superconductor bolometer with electrical substitution has been developed, fabricated and tested. Tests have been carried out at the synchrotron radiation (SR) station "Cosmos" on the VEPP-4 storage ring of Budker Institute of Nuclear Physics of the SB RAS. It was ascertained that sensitivity of the device allows carrying out measurements of an SR flux power in the given spectral range. The minimum measured power was 3.2 μW. A predicted threshold sensitivity of bolometer ～10~(-10) W/Hz~(1/2) at modulation frequency of 10 Hz and analysis of other factors influencing the measurement accuracy prove it to be real to achieve a 1 % accuracy at measurement of SR flux power of about 1 μW.

synchrotron radiationsoft x-ray radiationabsolute measuring instrument of radiation powerbolometerelectrical substitutionhigh-temperature superconductorthin filmcryostatpreamplifier

Igor A. Khrebtov、Valeriy G. Malyarov、Vladimir Yu. Zerov、Anton D. Nikolenko、Valeriy F. Pindyurin、Aleksandr A. Legkodymov、Vladimir V.Lyah

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S.I. Vavilov State Optical Institute, 199034 Saint-Petersburg, Russia 12, Birzhevaya Linia

G.I. Budker Institute of Nuclear Physics of SB RAS, 630090 Novosibirsk, Russia 11, Acad. Lavrentyeva av.

2010

10.4028/www.scientific.net/KEM.437.636

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.437
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