Автор | A V Parisi |
Автор | J C F Wong |
Дата выпуска | 1997-07-01 |
dc.description | A spectrum evaluator employing four passive dosimeters has been used to evaluate the time averaged spectrum to allow calculation of the erythemal exposures resulting from the predominantly UVA component of filtered solar ultraviolet radiation. An exposure interval of approximately 20 min to autumn and spring sunshine was required for the spectrum evaluator to allow evaluation of the filtered source spectrum. For a clear spring day an erythemal exposure of 0.85 MED (minimum erythemal dose) to a horizontal plane and 0.38 MED to a vertical plane over a 6 h period was measured within a glass enclosure. For a partially cloudy day six weeks later, these were 0.89 and 0.44 MED for the horizontal and the vertical planes respectively. The ratios of the filtered to the unfiltered erythemal exposures within and outside the enclosure respectively ranged from 0.08 to 0.18 throughout the two days. |
Формат | application.pdf |
Издатель | Institute of Physics Publishing |
Название | Erythemal irradiances of filtered ultraviolet radiation |
Тип | paper |
DOI | 10.1088/0031-9155/42/7/003 |
Electronic ISSN | 1361-6560 |
Print ISSN | 0031-9155 |
Журнал | Physics in Medicine and Biology |
Том | 42 |
Первая страница | 1263 |
Последняя страница | 1275 |
Выпуск | 7 |