Definition of actinometer in English:

actinometer

noun ˌaktɪˈnɒmɪtəˌaktəˈnämədər

Physics

An instrument for measuring the intensity of radiation, especially ultraviolet radiation.
〔物理〕曝光计（表），（尤指紫外辐射）光线强度计
Example sentencesExamples
- Chemical actinometry using the potassium ferrioxalate actinometer gave an incident intensity 10 of about 2.8 X 10 + 16 quanta-s 1.
- Porrino et al using an instrument designed at the NIMH called the actinometer found that a 15 mg dose of DAS would produce a decrease in hyperactive motor behavior for 8 hours.
- After the monochromator the light was reimaged onto the actinometer and a silicon photodiode, located behind the cuvette, by a normal-incidence spherical mirror as indicated in Fig.1.
- Spherical and tubular actinometers containing iodide/iodate solution were suspended from the ceiling at the positions indicated in Fig.1.
- Second, to measure the number of moles of photons or einsteins absorbed by the actinometer, a calibrated system must be used, which can be either another actinometric solution or a calibrated radiometer, photocell or photodiode.

Origin

Mid 19th century: from Greek aktis, aktin- 'ray' + -meter.

Definition of actinometer in US English:

actinometer

nounˌaktəˈnämədər

Physics

An instrument for measuring the intensity of radiation, especially ultraviolet radiation.
〔物理〕曝光计（表），（尤指紫外辐射）光线强度计
Example sentencesExamples
- After the monochromator the light was reimaged onto the actinometer and a silicon photodiode, located behind the cuvette, by a normal-incidence spherical mirror as indicated in Fig.1.
- Porrino et al using an instrument designed at the NIMH called the actinometer found that a 15 mg dose of DAS would produce a decrease in hyperactive motor behavior for 8 hours.
- Chemical actinometry using the potassium ferrioxalate actinometer gave an incident intensity 10 of about 2.8 X 10 + 16 quanta-s 1.
- Second, to measure the number of moles of photons or einsteins absorbed by the actinometer, a calibrated system must be used, which can be either another actinometric solution or a calibrated radiometer, photocell or photodiode.
- Spherical and tubular actinometers containing iodide/iodate solution were suspended from the ceiling at the positions indicated in Fig.1.

Origin

Mid 19th century: from Greek aktis, aktin- ‘ray’ + -meter.

单词	actinometer
释义	Definition of actinometer in English: actinometer noun ˌaktɪˈnɒmɪtəˌaktəˈnämədər Physics An instrument for measuring the intensity of radiation, especially ultraviolet radiation. 〔物理〕曝光计（表），（尤指紫外辐射）光线强度计 Example sentencesExamples Chemical actinometry using the potassium ferrioxalate actinometer gave an incident intensity 10 of about 2.8 X 10 + 16 quanta-s 1. Porrino et al using an instrument designed at the NIMH called the actinometer found that a 15 mg dose of DAS would produce a decrease in hyperactive motor behavior for 8 hours. After the monochromator the light was reimaged onto the actinometer and a silicon photodiode, located behind the cuvette, by a normal-incidence spherical mirror as indicated in Fig.1. Spherical and tubular actinometers containing iodide/iodate solution were suspended from the ceiling at the positions indicated in Fig.1. Second, to measure the number of moles of photons or einsteins absorbed by the actinometer, a calibrated system must be used, which can be either another actinometric solution or a calibrated radiometer, photocell or photodiode. Origin Mid 19th century: from Greek aktis, aktin- 'ray' + -meter. Definition of actinometer in US English: actinometer nounˌaktəˈnämədər Physics An instrument for measuring the intensity of radiation, especially ultraviolet radiation. 〔物理〕曝光计（表），（尤指紫外辐射）光线强度计 Example sentencesExamples After the monochromator the light was reimaged onto the actinometer and a silicon photodiode, located behind the cuvette, by a normal-incidence spherical mirror as indicated in Fig.1. Porrino et al using an instrument designed at the NIMH called the actinometer found that a 15 mg dose of DAS would produce a decrease in hyperactive motor behavior for 8 hours. Chemical actinometry using the potassium ferrioxalate actinometer gave an incident intensity 10 of about 2.8 X 10 + 16 quanta-s 1. Second, to measure the number of moles of photons or einsteins absorbed by the actinometer, a calibrated system must be used, which can be either another actinometric solution or a calibrated radiometer, photocell or photodiode. Spherical and tubular actinometers containing iodide/iodate solution were suspended from the ceiling at the positions indicated in Fig.1. Origin Mid 19th century: from Greek aktis, aktin- ‘ray’ + -meter.
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