Lindelöf B, Karlberg J, Lyckefält S, Gerhardsson A
Department of Dermatology, Karolinska Hospital, Stockholm, Sweden.
Photodermatol. 1988 Dec;5(6):248-51.
The exposure to grenz rays of office personnel handling a grenz ray unit working with 10 kV voltage was investigated for different treatment situations. Scattered and leakage radiation, and primary radiation at some distance from the grenz ray unit were measured. Air absorption was found to be most important. Direct exposure of the operator to the primary grenz ray beam at a distance of 4 m was practically nil. At a distance of 2 m from the unit, the operator is permitted to be exposed 100 h per year; at a distance of 1 m, the permitted exposure of the direct beam is 3 h per year. Scattered and leakage radiation from the unit was of no importance and certain clothing was demonstrated to promote absorption.
针对使用10 kV电压的接触格瑞诺氏射线装置的办公室人员，在不同治疗情况下对其接触格瑞诺氏射线的情况进行了调查。测量了散射辐射、泄漏辐射以及在距格瑞诺氏射线装置一定距离处的原发射线。发现空气吸收最为重要。操作人员在距离原发射线束4米处的直接照射实际上为零。在距离装置2米处，操作人员每年允许照射100小时；在距离1米处，原发射线束的允许照射时间为每年3小时。该装置的散射辐射和泄漏辐射并不重要，并且已证明某些衣物可促进吸收。
