Search Results - "Vatnitsky, S. M."

Factors for converting dose measured in polystyrene phantoms to dose reported in water phantoms for incident proton beams by Moyers, M. F., Vatnitsky, A. S., Vatnitsky, S. M.

“…Purpose: Previous dosimetry protocols allowed calibrations of proton beamline dose monitors to be performed in plastic phantoms. Nevertheless, dose…”
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Dosimetry techniques for narrow proton beam radiosurgery by Vatnitsky, S M, Miller, D W, Moyers, M F, Levy, R P, Schulte, R W, Slater, J D, Slater, J M

“…Characterization of narrow beams used in proton stereotactic radiosurgery (PSRS) requires special efforts, since the use of finite size detectors can lead to…”
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Radiochromic film dosimetry for verification of dose distributions delivered with proton-beam radiosurgery by Vatnitsky, S M, Schulte, R W, Galindo, R, Meinass, H J, Miller, D W

“…In this work we studied the feasibility of radiochromic film for dosimetry verification of proton Bragg peak stereotactic radiosurgery with multiple beams…”
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Determination of the air w-value in proton beams using ionization chambers with gas flow capability by Moyers, M. F., Vatnitsky, S. M., Miller, D. W., Slater, J. M.

“…The purpose of this work was to determine the w-value of air for protons using the paired gas method. Several plastic- and magnesium-walled chambers were used…”
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Radiochromic film dosimetry for clinical proton beams by Vatnitsky, Stanislav M.

“…Depth doses and lateral profiles for proton beams with energies of 100–250 MeV were measured with a high-sensitivity GafChromic ™ MD-55 film, which requires no…”
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Deduction of the air w value in a therapeutic proton beam by Siebers, J V, Vatnitsky, S M, Miller, D W, Moyers, M F

“…Utilization of air-filled ionization chambers with 60Co-based reference calibrations in proton dosimetry requires application of water to air stopping power…”
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Factors for converting dose measured in polystyrene phantoms to dose reported in water phantoms for incident proton beamsa by Moyers, M. F., Vatnitsky, A. S., Vatnitsky, S. M.

“…Purpose: Previous dosimetry protocols allowed calibrations of proton beamline dose monitors to be performed in plastic phantoms. Nevertheless, dose…”
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Factors for converting dose measured in polystyrene phantoms to dose reported in water phantoms for incident proton beams: Proton polystyrene-to-water factors by Moyers, M. F., Vatnitsky, A. S., Vatnitsky, S. M.

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kQ factors for ionization chamber dosimetry in clinical proton beams by Vatnitsky, S M, Siebers, J V, Miller, D W

“…We discuss a formalism for clinical proton beam dosimetry based on the use of ionization chamber absorbed dose-to-water calibration and beam quality correction…”
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Calorimetric determination of the absorbed dose-to-water beam quality correction factor kQ for high-energy photon beams by Vatnitsky, S M, Siebers, J V, Miller, D W

“…A method has been developed for measuring photon beam quality correction factors kQ using direct transfer with a water calorimeter. kQ values were measured for…”
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