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Electron Spin Resonance
Signal To Noise Ratio
Spectrum
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Bilateral comparison of an alanine/ESR dosimetry system at radiotherapy dose levels
Bilateral comparison of an alanine/ESR dosimetry system at radiotherapy dose levels,10.1016/j.radmeas.2010.03.010,Radiation Measurements,M. Lin,T. Gar
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Bilateral comparison of an alanine/ESR dosimetry system at radiotherapy dose levels
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M. Lin
,
T. Garcia
,
V. Lourenço
,
Y. Cui
,
Y. Z. Chen
,
F. Wang
To improve the
signal to noise ratio
and to reduce the uncertainty for
Electron Spin Resonance
(ESR) readout of alanine dosimeters irradiated in the dose range of 2–10 Gy, new spectrometer settings have been proposed for microwave power, modulation amplitude, conversion time, sweeps of the
spectrum
and orientations of the alanine pellets (Garcia et al., 2009). To check the reliability of the new spectrometer settings at radiotherapy dose levels, a bilateral dose comparison in terms of absorbed dose to water was performed between the CEA LIST Laboratoire National Henri Becquerel (LNHB) and the Radiometrology Center of the China Institute of Atomic Energy (RC-CIAE). Eighteen alanine dosimeters were irradiated with 2, 5 and 10 Gy. Each dosimeter was readout with the new spectrometer settings developed within the framework of the collaboration. The results of Dmeas/Dnom at both laboratories in the dose range of 2–10 Gy are within the tolerance limits. The maximum deviations observed are within the extended uncertainties (k = 2).
Journal:
Radiation Measurements - RADIAT MEAS
, vol. 45, no. 7, pp. 789-796, 2010
DOI:
10.1016/j.radmeas.2010.03.010
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References
(3)
A methodology for choosing parameters for ESR readout of alanine dosimeters for radiotherapy
(
Citations: 2
)
T. Garcia
,
M. Lin
,
I. Pasquié
,
V. Lourenço
Journal:
Radiation Physics and Chemistry - RADIAT PHYS CHEM
, vol. 78, no. 9, pp. 782-790, 2009
Assessment of an alanine EPR dosimetry technique with enhanced precision and accuracy
(
Citations: 22
)
Robert B. Hayes
,
Edwin H. Haskell
,
Albrecht Wieser
,
Alexander A. Romanyukha
,
Byron L. Hardy
,
Jeffrey K. Barrus
Journal:
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment - NUCL INSTRUM METH PHYS RES A
, vol. 440, no. 2, pp. 453-461, 2000
Dosimetry by ESR spectroscopy of alanine
(
Citations: 120
)
D REGULLA
,
U DEFFNER
Journal:
The International Journal of Applied Radiation and Isotopes
, vol. 33, no. 11, pp. 1101-1114, 1982