Spectroradiometry of Ultraviolet Radiation

Anevskii, S. I.; Zolotarevskii, Yu. M.; Ivanov, V.; Крутиков, В. Н.; Minaeva, O. A.; Minaev, R. V.

doi:10.1007/s11018-016-0873-9

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Спектральные энергетические характеристики синхротронного излучения рассчитываются с высокой точностью по результатам измерений радиуса электронной орбиты, энергии и числа ускоренных электронов [17]. Распределение спектральной ВВЕДЕНИЕ Решение актуальных задач спектрорадиометрии и фотометрии основано на использовании эталонных источников и приемников излучения в инфракрасной (ИК), видимой и ультрафиолетовой (УФ) областях спектра [1][2][3]. Методы спектрорадиометрии играют важную роль в различных областях науки и техники, включая диагностику плазмы, фотохимию и фотобиологию, астронавигацию, дистанционное зондирование Земли, диагностику солнечной активности, исследование свойств жидкостей в терагерцовом диапазоне, локацию удаленных объектов, наноэлектронику [4,5].…”

Section: радиометрия синхротронного излученияunclassified

Synchrotron radiation of a single electron application for optical spectroradiometry

Sigov,

Lazarenko,

Golovanova

et al. 2023

Rossijskij tehnologičeskij žurnal

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Objectives. The investigations of optical radiation sources and metrological detector characteristics in the infrared (IR), visible, and air ultraviolet (UV) spectral regions are partially based on the unique metrological properties of synchrotron radiation. The aim of this work is to develop a high-precision method for determining the storage ring accelerated electron number with synchrotron radiation of a single electron to establish spectroradiometry and photometry units.Methods. By determining the number of accelerated electrons, any storage ring can be used to calculate the synchrotron radiation characteristics at wavelengths of many large then the critical wavelength in the visible, air UV, and IR regions of the spectrum. This makes it possible to determine the main metrological characteristics normalized to the number of electrons, such as luminous intensity, luminance, illuminance, radiant power, radiance, irradiance, etc., regardless of the energy of the electrons.Results. When applying the method for determining the number of accelerated electrons at low currents of the electronic storage ring, a total standard deviation of the number of accelerated electrons is less than 0.01% for an exposure range of the CCD matrix from 10−2 to 3 · 103 s in a wide dynamic range of 1−1010 electrons per orbit.Conclusions. The use of a CCD-based radiometer-comparator calibrated by responsivity on a synchrotron radiation source is particularly relevant in monitoring luminance contrast thresholds and spatial distribution of object and background brightness, as well as determining metrological characteristics of optoelectronic measuring instruments, including CCD cameras, radiometers, spectroradiometers and photometers.

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Section: радиометрия синхротронного излученияunclassified

Synchrotron radiation of a single electron application for optical spectroradiometry

Sigov,

Lazarenko,

Golovanova

et al. 2023

Rossijskij tehnologičeskij žurnal

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Setup for the Realization, Maintenance, and Dissemination of the Unit of Irradiance of Low Levels in the Wavelength Range from 0.2 to 0.4 μm

Berlizov,

Kanzyuba,

Feldman

et al. 2023

Meas Tech

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Quality control of instruments for measuring the characteristics of bactericidal UV radiation

Minaeva,

Ragutkin,

Anevsky

et al. 2024

Rossijskij tehnologičeskij žurnal

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Objectives. Quality control of instruments for measuring bactericidal irradiance of ultraviolet (UV) radiation is based on studying the main metrological characteristics. These characteristics include: angular and spectral sensitivity; linearity range; and absolute calibration in irradiance units. Deviations of the angular sensitivity of measuring instruments from the ideal cosine characteristic can significantly impact error estimation. They can also lead to the distortion of measurement results and a significant difference in instrument readings. The aim of this work is to enhance accuracy in resolving metrological problems of determining irradiance of bactericidal radiation.Methods. An effective method of resolving this problem is to introduce correction coefficients for the angular sensitivity of radiometers, spectroradiometers and dosimeters. The values are calculated based on the results of measurements on the goniometer when testing measuring instruments. An important role is played by computer models and digital twins of measuring instruments based on the results of studies of the metrological characteristics of radiometers by means of software. This includes modeling the measuring task.Results. The study of angular dependence of bactericidal UV radiometer sensitivity complemented by an analysis of measurement results obtained by other authors allows determining the value of the angular sensitivity correction coefficients by the deviation of the angular sensitivity of the irradiance measuring instruments of bactericidal radiation from the standard cosine dependence.Conclusions. Deviations of the angular dependence of bactericidal radiation UV radiometer sensitivity from the cosine characteristic lead to a significant underestimation of the irradiance measurements results from extended emitters. An effective solution is the use of digital angular sensitivity correction coefficients to measure the irradiance of bactericidal radiation determined during tests. When assessing the quality of radiometers, spectroradiometers and dosimeters for bactericidal radiation, incomplete control of the main metrological characteristics of the measuring instruments creates risks of serious errors in the measurement results of bactericidal irradiance.

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Spectroradiometry of Ultraviolet Radiation

Cited by 3 publications

References 6 publications

Synchrotron radiation of a single electron application for optical spectroradiometry

Synchrotron radiation of a single electron application for optical spectroradiometry

Setup for the Realization, Maintenance, and Dissemination of the Unit of Irradiance of Low Levels in the Wavelength Range from 0.2 to 0.4 μm

Quality control of instruments for measuring the characteristics of bactericidal UV radiation

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