A New Dosimetric System Based on Aqueous Alcoholic Solutions of Tetrazolium Salt

Пикaeв, A.К.; Kriminskaya, Z.K.

doi:10.1070/mc1995v005n05abeh000525

Cited by 6 publications

(6 citation statements)

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“…, which are apparently unable to reduce NPTC. 24 The conclusions about the reasons for the low yields of formazan in aerated solutions of TPTC and NPTB have been confirmed by the results of a study carried out by the pulse radiolysis method. 23 It was found that the tetrazolium radicals T…”

mentioning

confidence: 75%

“…Figure 4 shows the concentrations of the formazan formed in aerated 1610 73 M aqueous solutions of TPTC versus the g-radiation dose for two different pH values. 24 It can be seen that at low doses almost no formazan is formed. When the doses are larger than 0.8 kGy and oxygen in the solution is consumed almost entirely, the yield of formazan increases substantially.…”

Section: Alcoholic Aqueous and Water ± Alcohol Solutionsmentioning

confidence: 98%

“…The solution obtained by filtering this precipitate off and dissolving it in an alcohol, or by adding a sufficient amount of an appropriate organic solvent to the irradiated solution, or by extracting the product with a solvent exhibits an optical absorption spectrum typical of formazan. Upon irradiation of solutions in aqueous alcohols, when the alcohol concentration is high enough (for example, in a 1 : 1 water ± isopropanol mixture 24 ), the precipitate does not appear, but solution acquires an intense red colour caused by the formation of formazan. It should be noted that in aqueous solutions, the concentration of formazan arising upon radiolysis depends on the g-radiation dose only at high doses, because the product precipitates.…”

Section: Characteristic Features Of Radiolytic Reduction In Deaerated...mentioning

confidence: 99%

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Radiolysis of solutions of tetrazolium salts

Пикaeв¹,

Kriminskaya²

1998

Russ. Chem. Rev.

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confidence: 75%

Section: Alcoholic Aqueous and Water ± Alcohol Solutionsmentioning

confidence: 98%

Section: Characteristic Features Of Radiolytic Reduction In Deaerated...mentioning

confidence: 99%

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Radiolysis of solutions of tetrazolium salts

Пикaeв¹,

Kriminskaya²

1998

Russ. Chem. Rev.

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“…One characteristic of the new radiochromic system is a strong linearity between OD and absorbed dose through cumulative doses of 5,000 cGy and with rapid dose- rate deliveries of 6,000 cGy/min. 16,17 Some suggest that tetrazolium salt-based dosimeters may overcome radiation detector limitations in spatial resolution and profile accuracy known to be exhibited by diamond detectors, ion chambers, and diodes. 17 This progress has been made possible with modern advancements to the classic system for optical analysis.…”

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confidence: 99%

Stereotactic radiosurgery delivery verification using tetrazolium salt-based gel as a dosimeter

Gossman

Courter

2017

Can. J. Phys.

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The recently made available ClearView® tetrazolium salt-based gel dosimeter, encapsulated in a vial, was tested to determine feasibility in use as an end-to-end dosimeter for stereotactic radiosurgery commissioning and quality assurance. A fabricated adaptor enabled direct attachment of the gel vial lid to a rod extension. The rod was inserted into a water-filled head phantom at the open neck location and locked into position. Once quality assurance testing of the linear accelerator was completed, a stereotactic plan was deployed. Optical scanning software enabled a direct comparison of the measured positional isocenter and dose distribution to the intended plan. Delivery accuracy was verified as line-dose profile plots of measured data coincide with the planned dose location and distribution. It has been demonstrated here that ClearView® gel contained in a vial is a suitable dosimeter for verifying stereotactic radiation therapy delivery accuracy. The end-to-end testing provided is geared to work identically for any small field study, including stereotactic radiosurgery and radiotherapy, volumetric modulated arc therapy, intensity modulated radiation therapy, and three-dimensional conformal radiation therapy.

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“…Previously in ref. 3, carried out with the participation of the present group, a dosimetric system based on an aqueous-alcoholic solution of tetrazolium salt for the determination of doses of γ-radiation within the range 1-50 Gy was described. Continuing this study, we observed that a solution of rhodamine B lactone in chloroform saturated with water and air can be used for the measurement of absorbed doses within the range 0.04-38 Gy at dose rates up to 6×10 8 Gy s -1 .…”

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confidence: 99%