A NEW CHEMICAL DOSIMETRY FOR MEASURING HIGHER LEVEL $gamma$-RAYS USING A TITANIUM SULPHATE SOLUTION

Journal Article · Sat Aug 11 04:00:00 EDT 1962 · Nature

DOI:https://doi.org/10.1038/195592a0· OSTI ID:4791267

Shiokawa, T; Hasegawa, K

An attempt was made to develop a new chemical dosimeter for doses higher than 10/sup 6/ r, and a new method was developed depending on the resuiting orange-yellow color in titanium sulfate solutions caused by irradiation. According to experimental resuits, the coloration did not depend on the gamma - ray dosage rate in the range 6 x 10/sup 4/ to 6 x 10/sup 5/ r/hr, but it was influenced to some extent by the concentrations of titanium sulfate and sulfuric acid. The G-value at a lower concentration of titanium sulfate tended to be larger, but less reproducible. The G-value of the coloration induced by gamma irradiation in a solution containing 0.8 N sulfuric acid and a 0.02 M titanium sulfate solution was estimated to be 1.03 with fairly good reproducibility. But if 0.8 N sulfuric acid solutions were irradiated and then a titanium sulfate solution added just before the photometric measurement, the value was about 0.53. The difference between the two values is understood to be due to secondary reactions or after-effects of the initial products in the solution after irradiation. (P.C.H.)

• Research Organization: Tohoku Univ., Sendai
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-029019
• OSTI ID: 4791267
• Journal Information: Nature, Journal Name: Nature Vol. Vol: 195
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
COLOR
DOSEMETERS
GAMMA RADIATION
IRRADIATION
MEASURED VALUES
PHOTOMETRY
RADIATION DOSES
SOLUTIONS
SULFURIC ACID
TITANIUM SULFATES