Iron(II) sulphate (Fricke solution) oxidation yields for 8.9 and 13.6 keV X-rays from synchrotron radiation.
The oxidation yields (G) for 8.86 and 13.55 keV X-rays produced by synchrotron radiation were measured using an iron(II) sulphate (Fricke) solution. Monoenergetic X-rays were produced using a silicon crystal monochromator. The X-rays were absorbed in 0.4 M sulphuric acid-iron(II) sulphate solution and FeIII ion yields were measured and corrected for escape fractions resulting from scattering using Monte Carlo calculations. Doses in the solution were determined using a thin window, parallel plate chamber calibrated against a primary standard free-air chamber at the Electrotechnical Laboratory (Osaka, Japan). Yields (G) of 1.50 +/- 0.06 and 1.43 +/- 0.06 mumol J-1 were obtained for 8.86 and 13.55 keV X-rays respectively.
Research Institute for Nuclear Medicine and Biology, Hiroshima University, Japan.
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M
Hoshi
S
S
Uehara
O
O
Yamamoto
S
S
Sawada
T
T
Asao
K
K
Kobayashi
H
H
Maezawa
Y
Y
Furusawa
K
K
Hieda
T
T
Yamada
D010084:Oxidation-Reduction; D010315:Particle Accelerators; D011830:Radiation Effects; D011874:Radiometry / Q000295:instrumentation / Q000379:methods; D012062:Relative Biological Effectiveness