[A device for measuring nonuniformity of the dose field of ionizing radiation].

The authors describe a device for measuring the dose field in the beam section of ionizing radiation. The device consists of an immovable bench mark detector and the two detectors: a movable one and a photodiode placed on a tele- and separately movable carriage. The device affords defining the correspondence of radiation and light fields.

[Solar elements in the control of photon irradiation parameters in radiotherapy].

A study was made of the dosimetric characteristics of semiconductor detectors (on the basis of silicon with the p-i-n structure) and combined detectors (scintillation crystals based on CsJ/Tl combined with silicon detectors). The spectral characteristics of semiconductor and combined detectors are described. The results of levelling of hardness dependence by filtration and combination of detectors are presented; their isotropism is reviewed.

[Non-radiation control of dosimetric devices].

Three varieties of complete control over dosimetric devices are reviewed. In these devices, use is made of combined detectors consisting of scintillators and semi-conductors. The control is effected by means of scintillator illumination from a stabilized light source via an edge-lighted panel.