Chromate Dosimeter

Abstract

The present paper describes a new chemical dosimeter utilizing K₂Cr₂O₇⋅H₂SO₄ system. Decrease of extinction of γ-irradiated K₂Cr₂O₇ were measured in the wavelength of 435 and 350 millimicron. The results obtained are as follows;
1. Decrease of extinction is proportional to radiation dose and independent of dose rate.
2. G-Value is 0.446±0.023.
3. In the dose range of 10⁴r-10⁷r, properly prepared solution of this system can offer reliable results.
4. The reactions in this system are relatively stable, so the total dose in the divided irradiation is also measurable.