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Posted by / 06-Sep-2020 23:43

The molar enamel powder was divided into nine aliquots. Each aliquot was placed inside a plastic capsule for irradiation using [sup.60]C standard radiation equipment at room temperature and 8Gy/min mean dose rate; the doses ranged from 0 to 740 Gy.

The most frequently used microwave energies drop in what is called the X band.

After irradiation, the ESR signal was measured with a Bruker ESP300 X-band spectrometer.

The parallel signals' peak to peak height was used for calculating amplitude.

The spectrometer parameters used were: 336 m T central field, 0.02 T scan range, 0.1 m T amplitude modulation, 100 k Hz modulation frequency, 0.328 s time constant and 20 m W microwave power.

The aliquots were then irradiated with additional doses and the same process was repeated until getting 9 data points from ESR signal amplitude as a function of [gamma]-ray dose.

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The most frequently used microwave energies drop in what is called the X band. After irradiation, the ESR signal was measured with a Bruker ESP300 X-band spectrometer. The perpendicular to and parallel signals' peak to peak height was used for calculating amplitude. The spectrometer parameters used were: 336 m T central field, 0.02 T scan range, 0.1 m T amplitude modulation, 100 k Hz modulation frequency, 0.328 s time constant and 20 m W microwave power. The aliquots were then irradiated with additional doses and the same process was repeated until getting 9 data points from ESR signal amplitude as a function of [gamma]-ray dose.

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