Alcohol solutions of triphenyl-tetrazolium chloride as high-dose radiochromic dosimeters

The response characteristics of tetrazolium violet solutions to gamma irradiation

“…In the next week the absorbance of the solution decreased from this maximum value to about 110% of the original value. This phenomenon is explained by the fact that formazan continues to form after irradiation till about 24 h similar to as was observed in the case of the TTC (Kova´cs et al, 1995).…”

UV‐assisted screen‐printing of flat textiles

“…The reason for the samples changing colour is the transformation of the tetrazole ring of the TTC substrate through the reduction process and the formation of a corresponding formazan. Similar observations have been reported for TTC solutions irradiated with UV light (253.7 nm; Figure 4) [13] and ionising radiation [6,7,10] indicating the likely mechanism of this reaction.…”

“…In particular, the process involves a reaction with solvated (hydrated) electrons with highly reducing properties. A few groups have examined the radiation‐induced reactions of aqueous and alcohol solutions of many tetrazolium salts: nitro‐tetrazolium salt and blue tetrazolium salt [6]; 2,3,5‐triphenyltetrazolium chloride (TTC) [7]; ditetrazolium salt nitrotetrazolium chloride (NBTCl 2 ) [8]; tetrazolium violet [9]; as well as poly(vinyl alcohol) films containing TTC [10]; radiochromic films made of NBT in a matrix of poly(vinyl alcohol) [11] and TTC combined with L ‐alanine [12].…”

Radiochromic film dosimetry: Recommendations of AAPM Radiation Therapy Committee Task Group 55

“…III.͒ Two radiochromic systems that have been developed for radiographic imaging and dosimetry at absorbed doses greater than those used for radiation therapy are thin films containing either amino-triphenylmethane leucodyes or tetrazolium salts as the colorless radiation sensitive ingredients which are changed to deep colors upon irradiation. Historical details and the results of radiation chemical kinetics studies of these systems can be found in a series of publications by McLaughlin et al 2,[11][12][13]18,35,[42][43][44][45][46][47]…”