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Title: Fragmentation Cross Sections of 290 and 400 MeV/nucleon 12C Beamson Elemental Targets

Abstract

Charge-changing and fragment production cross sections at 0circ have been obtained for interactions of 290 MeV/nucleon and 400MeV/nucleon carbon beams with C, CH2, Al, Cu, Sn, and Pb targets. Thesebeams are relevant to cancer therapy, space radiation, and the productionof radioactive beams. We compare to previously published results using Cand CH2 targets at similar beam energies. Due to ambiguities arising fromthe presence of multiple fragments on many events, previous publicationshave reported only cross sections for B and Be fragments. In this work wehave extracted cross sections for all fragment species, using dataobtained at three distinct values of angular acceptance, supplemented bydata taken with the detector stack placed off the beam axis. A simulationof the experiment with the PHITS Monte Carlo code shows fair agreementwith the data obtained with the large acceptance detectors, but agreementis poor at small acceptance. The measured cross sections are alsocompared to the predictions of the one-dimensional cross section modelsEPAX2 and NUCFRG2; the latter is presently used in NASA's space radiationtransport calculations. Though PHITS and NUCFRG2 reproduce thecharge-changing cross sections with reasonable accuracy, none of themodels is able to accurately predict the fragment cross sections for allfragment species and target materials.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director, Office of Science; National Aeronautics andSpace Administration
OSTI Identifier:
929312
Report Number(s):
LBNL-62641
R&D Project: L0523; BnR: 400409900; TRN: US0803588
DOE Contract Number:
DE-AC02-05CH11231; NASA:L14230C ANDH31909D
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 76; Related Information: Journal Publication Date: 07/2007
Country of Publication:
United States
Language:
English
Subject:
73; 61; ACCURACY; CARBON; CROSS SECTIONS; FRAGMENTATION; NEOPLASMS; PRODUCTION; RADIATION TRANSPORT; SIMULATION; TARGETS; THERAPY; Galactic Cosmic Rays nuclear fragmentation crosssections

Citation Formats

Zeitlin, C., Guetersloh, S., Heilbronn, L., Miller, J., Fukumura,A., Iwata, Y., and Murakami, T.. Fragmentation Cross Sections of 290 and 400 MeV/nucleon 12C Beamson Elemental Targets. United States: N. p., 2007. Web. doi:10.1103/PhysRevC.76.014911.
Zeitlin, C., Guetersloh, S., Heilbronn, L., Miller, J., Fukumura,A., Iwata, Y., & Murakami, T.. Fragmentation Cross Sections of 290 and 400 MeV/nucleon 12C Beamson Elemental Targets. United States. doi:10.1103/PhysRevC.76.014911.
Zeitlin, C., Guetersloh, S., Heilbronn, L., Miller, J., Fukumura,A., Iwata, Y., and Murakami, T.. Sat . "Fragmentation Cross Sections of 290 and 400 MeV/nucleon 12C Beamson Elemental Targets". United States. doi:10.1103/PhysRevC.76.014911. https://www.osti.gov/servlets/purl/929312.
@article{osti_929312,
title = {Fragmentation Cross Sections of 290 and 400 MeV/nucleon 12C Beamson Elemental Targets},
author = {Zeitlin, C. and Guetersloh, S. and Heilbronn, L. and Miller, J. and Fukumura,A. and Iwata, Y. and Murakami, T.},
abstractNote = {Charge-changing and fragment production cross sections at 0circ have been obtained for interactions of 290 MeV/nucleon and 400MeV/nucleon carbon beams with C, CH2, Al, Cu, Sn, and Pb targets. Thesebeams are relevant to cancer therapy, space radiation, and the productionof radioactive beams. We compare to previously published results using Cand CH2 targets at similar beam energies. Due to ambiguities arising fromthe presence of multiple fragments on many events, previous publicationshave reported only cross sections for B and Be fragments. In this work wehave extracted cross sections for all fragment species, using dataobtained at three distinct values of angular acceptance, supplemented bydata taken with the detector stack placed off the beam axis. A simulationof the experiment with the PHITS Monte Carlo code shows fair agreementwith the data obtained with the large acceptance detectors, but agreementis poor at small acceptance. The measured cross sections are alsocompared to the predictions of the one-dimensional cross section modelsEPAX2 and NUCFRG2; the latter is presently used in NASA's space radiationtransport calculations. Though PHITS and NUCFRG2 reproduce thecharge-changing cross sections with reasonable accuracy, none of themodels is able to accurately predict the fragment cross sections for allfragment species and target materials.},
doi = {10.1103/PhysRevC.76.014911},
journal = {Physical Review C},
number = ,
volume = 76,
place = {United States},
year = {Sat Mar 17 00:00:00 EDT 2007},
month = {Sat Mar 17 00:00:00 EDT 2007}
}
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