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- Article name
- Background irradiance calculation method for IR array with cold diaphragm of arbitrary shape
- Authors
- Patrashin A. I., , orion@orion-ir.ru, Orion R&P Association, 46/2 Enthusiasts highway, Moscow, 111123, Russia
- Keywords
- calculation / diaphragm / exposure / seat source
- Year
- 2010 Issue 3 Pages 123 - 126
- Code EDN
- Code DOI
- Abstract
- The calculation method of background irradiance of IR array with cold diaphragm of the arbitrary shape is presented. It is proved, that background irradiance in the given point of IR array, located in the cold screen with diaphragm of the arbitrary shape, is equal to background irradiance from the flat source of radiation located in plane of cold diaphragm, and this flat source has the distribution of temperature on the area of the diaphragm, defined by projection of background radiation source through diaphragm in the given point of IR array. It is shown that the background irradiance in the given point of IR array is directly proportional to integral on the area of the diaphragm, containing coordinates of the given point.
- Text
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