Nuclear Data Sheets for A = 125

Katakura, J.

doi:10.1016/j.nds.2011.02.001

Cited by 79 publications

(51 citation statements)

References 274 publications

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“…Subsequently, a new data evaluation for the 125 I photon energy spectrum following nuclear disintegration was performed by Katakura in 2011. 23 Upon comparison of these more recent data to the prior evaluation by Katakura in 1999, 24 and with removal of the 3.77 keV photon from both spectra, the mean photon energy changed from 28.3644 to 28.3676 keV, respectively. Utilizing the 1999 and 2011 spectra in calculations oḟ d(1 cm, θ 0 ),ḋ(5 cm, θ 0 ), and s K , the dosimetric uncertainties were 0.03%, 0.01%, and 0.04%, respectively.…”

Section: D Uncertainty Analysismentioning

confidence: 88%

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A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

2014

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Several MC radiation transport codes are available for calculation of the TG-43 dosimetry parameters for brachytherapy seeds. The physics models in these codes and their related cross-section libraries have been updated and improved since publication of the 2007 AAPM TG-43U1S1 report. Results using modern data indicated statistically significant differences in these dosimetry parameters in comparison to data recommended in the TG-43U1S1 report. Therefore, it seems that professional societies such as the AAPM should consider reevaluating the consensus data for this and others seeds and establishing a process of regular evaluations in which consensus data are based upon methods that remain state-of-the-art.

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Section: D Uncertainty Analysismentioning

confidence: 88%

“…Four different photon energy spectra were used for the computations examined in the current study. Compared to the 2011 evaluation by Katakura, 23…”

Section: Amentioning

confidence: 94%

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

2014

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“…Note also that the measured value of α T 109 depends on a calculated value for α T 36 , which in turn depends on the measured E2/M 1 mixing ratio [25] for the 35.5-keV transition. If that mixing ratio were wrong, it could have an impact on our α T 109 result.…”

Section: Resultsmentioning

confidence: 97%

“…(5) to derive N K36 , the contribution of the 35.5-keV transition to the K x-rays: We need to calculate the K-shell ICC for the 35.5-keV transition, α K36 . This is a mixed M 1 and E2 transition with a measured mixing ratio of δ = 0.031(3) [25]. Our ICC calculations are made within the DiracFock framework with the option either to ignore the Kshell vacancy or to include it in the "frozen-orbital" approximation [29].…”

Section: Resultsmentioning

confidence: 99%

“…Our ICC calculations are made within the DiracFock framework with the option either to ignore the Kshell vacancy or to include it in the "frozen-orbital" approximation [29]. Taking the transition energy to be 35.4925(5) keV [25], we find that the two different calculations yield values of α K36 that differ by less than 1%: 11.61 (no vacancy) and 11.69 (vacancy included). So as not to prejudice our result for the 109.3-keV transition, we adopt the value 11.65(4), which encompasses both possibilities.…”

Section: Resultsmentioning

confidence: 99%

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Precise measurement of αK and αT for the 109.3-keV M4 transition in
Nica¹,
Hardy²,
Iacob³
et al. 2017
Phys. Rev. C
6
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4
0
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We have measured the K-shell and total internal conversion coefficients (ICCs), αK and αT , for the 109.3-keV M 4 transition in 125 Te to be 185.0(40) and 350.0(38), respectively. Previously this transition's ICCs were considered to be anomalous, with measured values lying below calculated ones. When compared with Dirac-Fock calculations, our new results show good agreement. The αK result agrees well with the version of the theory that takes account of the K-shell atomic vacancy and disagrees with the one that does not. This is consistent with our conclusion drawn from a series of measurements on high multipolarity transitions.

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AAPM recommendations on medical physics practices for ocular plaque brachytherapy: Report of task group 221

et al. 2020

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The American Association of Physicists in Medicine (AAPM) formed Task Group 221 (TG-221) to discuss a generalized commissioning process, quality management considerations, and clinical physics practice standards for ocular plaque brachytherapy. The purpose of this report is also, in part, to aid the clinician to implement recommendations of the AAPM TG-129 report, which placed emphasis on dosimetric considerations for ocular brachytherapy applicators used in the Collaborative Ocular Melanoma Study (COMS). This report is intended to assist medical physicists in establishing a new ocular brachytherapy program and, for existing programs, in reviewing and updating clinical practices. The report scope includes photon-and beta-emitting sources and source:applicator combinations. Dosimetric studies for photon and beta sources are reviewed to summarize the salient issues and provide references for additional study. The components of an ocular plaque brachytherapy quality management program are discussed, including radiation safety considerations, source calibration methodology, applicator commissioning, imaging quality assurance tests for treatment planning, treatment planning strategies, and treatment planning system commissioning. Finally, specific guidelines for commissioning an ocular plaque brachytherapy program, clinical physics practice standards in ocular plaque brachytherapy, and other areas reflecting the need for specialized treatment planning systems, measurement phantoms, and detectors (among other topics) to support the clinical practice of ocular brachytherapy are presented. Expected future advances and developments for ocular brachytherapy are discussed.

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Nuclear Data Sheets for A = 125

Cited by 79 publications

References 274 publications

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

Precise measurement of αK and αT for the 109.3-keV M4 transition in
Nica¹,
Hardy²,
Iacob³
et al. 2017
Phys. Rev. C
6
0
4
0
View full text Add to dashboard Cite

AAPM recommendations on medical physics practices for ocular plaque brachytherapy: Report of task group 221

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Nuclear Data Sheets for A = 125

Cited by 79 publications

References 274 publications

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an 125I seed already having AAPM consensus data

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an 125I seed already having AAPM consensus data

Precise measurement of αK and αT for the 109.3-keV M4 transition in Nica1, Hardy2, Iacob3 et al. 2017Phys. Rev. C6040View full textAdd to dashboardCite

AAPM recommendations on medical physics practices for ocular plaque brachytherapy: Report of task group 221

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A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

A modern Monte Carlo investigation of the TG‐43 dosimetry parameters for an ¹²⁵I seed already having AAPM consensus data

Precise measurement of αK and αT for the 109.3-keV M4 transition in
Nica¹,
Hardy²,
Iacob³
et al. 2017
Phys. Rev. C
6
0
4
0
View full text Add to dashboard Cite