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RBE estimation of proton radiation fields using a telescope
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10.1118/1.3215927
/content/aapm/journal/medphys/36/10/10.1118/1.3215927
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/10/10.1118/1.3215927

Figures

Image of FIG. 1.
FIG. 1.

An example of different loci on a two-dimensional plot produced by different charged ion species (Ref. 9).

Image of FIG. 2.
FIG. 2.

Schematic of the telescope (Ref. 16).

Image of FIG. 3.
FIG. 3.

Schematic of the beamline configuration for a modulated 100 MeV proton beam with a 3 cm SOBP. To obtain an unmodulated proton beam, the scattering foil, modulator wheel, and ridge filters were removed.

Image of FIG. 4.
FIG. 4.

Unmodulated and modulated 100 MeV proton depth-dose curves with associated telescope measurement positions A–E and A–I, respectively.

Image of FIG. 5.
FIG. 5.

Graphical representation of the two-dimensional matrix mapped onto the two-dimensional plane.

Image of FIG. 6.
FIG. 6.

Coincidence data as obtained using the telescope for positions A–E along the unmodulated Bragg peak as specified in Fig. 4.

Image of FIG. 7.
FIG. 7.

Coincidence data as obtained using the telescope for various positions along the SOBP as specified in Fig. 4.

Image of FIG. 8.
FIG. 8.

values as a function of depth along the un-modulated 100 MeV proton depth dose curve (symbols). Error bars, which were calculated using first-order error propagation of the standard deviations of event frequencies, are contained within the size of the symbols.

Image of FIG. 9.
FIG. 9.

values as a function of depth along the modulated 100 MeV proton depth dose curve (symbols). Error bars, which were calculated using first-order error propagation of the standard deviations of event frequencies, are contained within the size of the symbols.

Tables

Generic image for table
TABLE I.

RBE data for various ion species and LETs. RBE data for protons, deuterons, and He3 ions obtained from Folkard et al. (Refs. 24 and 25), alpha data from Wang and Zhang (Ref. 26), carbon data from Weyrather et al. (Ref. 27), nitrogen data from Tilly et al. (Ref. 28), and proton data from Belli et al. (Ref. 29). LET values in Si were calculated using SRIM2006 (Ref. 23).

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/content/aapm/journal/medphys/36/10/10.1118/1.3215927
2009-09-09
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: RBE estimation of proton radiation fields using a ΔE−E telescope
http://aip.metastore.ingenta.com/content/aapm/journal/medphys/36/10/10.1118/1.3215927
10.1118/1.3215927
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