Estimate of the absorbed dose due to 20Ne beam and its fragments produced in interactions with tissue-equivalent materials

doi:10.1016/0969-8078(93)90196-B

Nuclear Tracks and Radiation Measurements

Volume 22, Issues 1–4, 1993, Pages 867-868

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Abstract

CR-39 and CN-85 plastic detectors were used for estimating the absorbed dose due to both 77.1 MeV·nucl^-1²⁰Ne GANIL beam and its fragments, with charge of 3 < Z_F < 9, formed in interactions of primeries with water and plexiglas. Preliminary results on the depth dose distributions are presented in this report.

References (2)

A. Golovchenko et al.
CR-39 charge resolution and relative yields of nuclear fragments produced in interactions of 77.1 MeV /nucleon Ne beam with water
(1992)
S.P. Tretyakova et al.
The use of CR-39 plastic detector for the detection and identification of ions with 2 < Z < 5
Nucl. Instr. Meth.
(1984)

Cited by (2)

Dosimetry of 40 and 70 MeV/n <sup>16</sup>O beams
1997, Radiation Measurements
Using CR-39 plastic track detectors the range values of ¹⁶O ions at two different energies (initially in the beam line, 39.97 MeV/n and 69.98 MeV/n) were measured after escaping the beam pipe and found to be (3050 ± 40) μm and (8210 ± 90) μm, respectively. The longitudinal and projected angular spread of oxygen ions of an initial energy of 69.98 MeV/n in the region of the Bragg peak was derived from the measured geometrical parameters of tracks. Based on a calibration curve (etch rate ratio vs total linear energy transfer in CR-39) and the measured track length distribution at the range end of oxygen ions, the complete depth dose profile of a 67.7 MeV/n ¹⁶O beam in CR-39 (plateau, extended Bragg peak and residual ionization caused by projectile like fragments) was obtained.
Characterization of a 292 MeV/n <sup>19</sup>F beam after passage through a thick plexiglas target
1996, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
A number of parameters, important for planning cancer treatment with heavy ions, were determined by an experiment where irradiated tissue was simulated by Plexiglas (C₅H₈O₂). CR-39 solid state nuclear track detectors were used to measure the number of projectile fragments formed due to the interaction of a 292 MeV/n ¹⁹F beam with a 2.5 cm thick Plexiglas target. From these measurements the partial cross-sections of fluorine fragmentation leading to the production of oxygen, nitrogen, carbon and boron nuclei were found to be (131 ± 10) mb, (100 ± 9) mb, (113 ± 9) mb and (53 ± 6) mb, respectively. Also, the linear energy transfer distribution due to the primary beam and its measured fragments which traversed a given thickness of Plexiglas was obtained. By measuring track opening positions on both sides of two detector foils, the angular spread of the primary beam in the target was found to be (0.22 ± 0.02)°.

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Estimate of the absorbed dose due to 20Ne beam and its fragments produced in interactions with tissue-equivalent materials

Abstract

CR-39 charge resolution and relative yields of nuclear fragments produced in interactions of 77.1 MeV /nucleon Ne beam with water

The use of CR-39 plastic detector for the detection and identification of ions with 2 < Z < 5

Nucl. Instr. Meth.

Estimate of the absorbed dose due to ²⁰Ne beam and its fragments produced in interactions with tissue-equivalent materials