Szymczykiewicz K, Zyłka-Włoszczyk M, Marzec S, Szaflarska-Stojko E, Zajusz K
Med Pr. 1985;36(3):153-60.
The establish a threshold dose, an acute experiment was carried out by 30 min. radiation of the rabbit's shaved head with all ranges of infrared, 200 W/m2, 350 W/m2 and 500 W/m2 intensities. Irradiation was prolonged up to 2 hrs. Having established the threshold dose, a chronic (5 months') experiment was carried out, irradiating 9 rabbits' skin (in 3 groups) with 350 W/m2 intensity in the range of all three bands. Similarly, tests on the eye transparent part were performed, irradiating only one eye, the other being handled as the control. The results show that the 350 W/m2 intensity of IR-A and IR-C radiation induces a slight erythema on rabbits' skin under long-lasting radiation, and under all radiation ranges no changes in the eye transparent part result at the 350 W/m2 intensity for the IR-A band and 200 W/m2 for the IR-C band. On the other hand, when irradiating the eye with the IR-B band at the 350 W/m2 intensity, slight infiltrations and defects of the eyeball cornea were found. Temporarily, the 350 W/m2 value for human skin was suggested as the TLV for the directional radiation intensity within IR-A and IR-B. On the other hand, for the eye transparent part the following TLVs have been suggested: for the IR-A band--250 W/m2, for the IR-B--150 W/m2, for the IR-C band--150 W/m2. Those values do not refer to laser radiation and do not guarantee the development of cataract under many-years' exposure.
为确定阈剂量，进行了一项急性实验，用200W/m²、350W/m²和500W/m²强度的全范围红外线对兔子剃毛的头部进行30分钟辐射。辐射延长至2小时。确定阈剂量后，进行了一项为期5个月的慢性实验，用350W/m²强度在所有三个波段范围内对9只兔子的皮肤（分3组）进行辐射。同样，对眼睛透明部分进行了测试，只照射一只眼睛，另一只作为对照。结果表明，在长时间辐射下，350W/m²强度的IR - A和IR - C辐射会在兔子皮肤上引起轻微红斑，在所有辐射范围内，对于IR - A波段350W/m²强度和IR - C波段200W/m²强度，眼睛透明部分无变化。另一方面，当用350W/m²强度的IR - B波段照射眼睛时，发现眼球角膜有轻微浸润和缺损。暂时建议将350W/m²作为人体皮肤在IR - A和IR - B范围内定向辐射强度的阈限值。另一方面，对于眼睛透明部分，建议的阈限值如下：IR - A波段为250W/m²，IR - B波段为150W/m²，IR - C波段为150W/m²。这些值不适用于激光辐射，也不能保证多年暴露下不会发生白内障。
