Characterisation of Ultraviolet (Uv) Therapy Machine (Phototherapy)

Show simple item record Amankwah, O.I. 2012-05-09T11:24:54Z 2017-10-14T06:40:17Z 2012-05-09T11:24:54Z 2017-10-14T06:40:17Z 2010
dc.description.abstract Ultraviolet radiation therapy machine as applied in dermatology treatment has been characterised using Microsoft Excel and Surfer 8 software. The irradiance of the device was measured in both 2-dimensions and 3-dimensions. The average temperature recorded during the measurements was 210±10C. The highest irradiance measured on the 200L device was 10.00 ± 0.31 mW/cm2, and the lowest was 5.00 ± 0.44 mW/cm2. On the 180L device, the highest was 6.00 ± 0.40 mW/cm2 and the lowest was 3.00 ± 0.57 mW/cm2. The radiation intensities varied across the surface of the device with the highest values measured on top of the lamps while the lowest values were measured between the lamps. Both surface and contour maps were constructed to interpret the data, and significant variations of the intensities were observed. The results indicate that dirt on lamps, and aging lamps show varying irradiances along each tube, with the potential causes of erythema and burns on the hands and feet of patients. This suggests that, instead of using the average irradiance, of a couple of readings on the panel, as the mean dose for treatment, the maximum dose recorded should be used instead, and where the tolerance of the measured irradiance is ±10% along a tube, and, or among the tubes, the defected tube or the whole set of tubes should be replaced with new ones. Regular checks on UV lamps should be encouraged, as per local rules and the manufacturer’s manual, to avoid erythema and patient discomfort. en_US
dc.language.iso en en_US
dc.publisher International Journal of Engineering Science 1(2): 1-7 en_US
dc.subject Ultraviolet en_US
dc.subject radiation en_US
dc.subject therapy en_US
dc.subject dermatology en_US
dc.subject irradiance en_US
dc.subject erythema en_US
dc.subject dose en_US
dc.title Characterisation of Ultraviolet (Uv) Therapy Machine (Phototherapy) en_US
dc.type Article en_US

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