Eggert P, Stick C, Schröder H
Eur J Pediatr. 1984 Apr;142(1):58-61. doi: 10.1007/BF00442593.
Knowledge of the effective irradiation dose is a prerequisite to predicting the efficacy of phototherapy. To gain this information, the field of irradiation of a phototherapy lamp was measured in an incubator. It became apparent that the radiant power is extremely heterogeneously distributed in the incubator. By decreasing the distance from the lamps, the radiant power is increased, with the heterogeneity of irradiation growing considerably at the same time. Lining the incubator with reflecting cloth results in a greater homogeneity of the field of irradiance and an increase in radiant power. Moreover, the lining causes a doubling of the indirect reflected radiance. The findings presented here are discussed in view of their importance for doses in phototherapy. It can be concluded that to increase the efficacy of phototherapy, lining the incubator with reflecting cloths is a more effective measure than moving the patient closer to the lamp.
了解有效照射剂量是预测光疗效果的前提条件。为获取此信息，在培养箱中测量了光疗灯的照射区域。结果表明，辐射功率在培养箱中分布极不均匀。通过减小与灯的距离，辐射功率会增加，但同时照射的不均匀性也会显著增大。在培养箱内衬上反光布可使辐照区域更均匀，且辐射功率增加。此外，这种内衬会使间接反射辐射亮度加倍。鉴于这些发现对光疗剂量的重要性，本文对其进行了讨论。可以得出结论，为提高光疗效果，在培养箱内衬上反光布比将患者移近灯更有效。
