Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code

Oranj, Leila Mokhtari; Lee, Hee -Seock; Leitner, Mario Santana

doi:10.3938/jkps.71.764

Title: Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n ²³⁸U ions using the FLUKA code

Abstract

In Korea, a heavy ion accelerator facility (RAON) has been designed for production of rare isotopes. The 90° bending section of this accelerator includes a 1.3-μm-carbon stripper followed by two dipole magnets and other devices. An incident beam is 18.5 MeV/n ²³⁸U^33+,34+ ions passing through the carbon stripper at the beginning of the section. The two dipoles are tuned to transport ²³⁸U ions with specific charge states of 77+, 78+, 79+, 80+ and 81+. Then other ions will be deflected at the bends and cause beam losses. These beam losses are a concern to the devices of transport/beam line. The absorbed dose in devices and prompt dose in the tunnel were calculated using the FLUKA code in order to estimate radiation damage of such devices located at the 90° bending section and for the radiation protection. A novel method to transport multi-charged ²³⁸U ions beam was applied in the FLUKA code by using charge distribution of ²³⁸U ions after the stripper obtained from LISE++ code. The calculated results showed that the absorbed dose in the devices is influenced by the geometrical arrangement. The maximum dose was observed at the coils of first, second, fourth and fifth quadruples placed after firstmore »« less

Authors:

Oranj, Leila Mokhtari ^[1]; Lee, Hee -Seock ^[1]; Leitner, Mario Santana ^[2]

POSTECH, Pohang (Korea)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

Publication Date:: Sun Nov 19 00:00:00 EST 2017

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1458610

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the Korean Physical Society

Additional Journal Information:: Journal Volume: 71; Journal Issue: 11; Journal ID: ISSN 0374-4884

Publisher:: Korean Physical Society

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS; RISP; Heavy ion accelerator; Absorbed dose; Multi-charged 238U ions; FLUKA; LISE++ code

Citation Formats


                    Oranj, Leila Mokhtari, Lee, Hee -Seock, and Leitner, Mario Santana. Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code.  United States: N. p., 2017. 
Web.  doi:10.3938/jkps.71.764.

Copy to clipboard


                    Oranj, Leila Mokhtari, Lee, Hee -Seock, & Leitner, Mario Santana. Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code.  United States.  https://doi.org/10.3938/jkps.71.764

Copy to clipboard


                    Oranj, Leila Mokhtari, Lee, Hee -Seock, and Leitner, Mario Santana. Sun .  
"Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code".  United States.  https://doi.org/10.3938/jkps.71.764.  https://www.osti.gov/servlets/purl/1458610.

Copy to clipboard


                    
@article{osti_1458610,

  title        = {Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code},

  author       = {Oranj, Leila Mokhtari and Lee, Hee -Seock and Leitner, Mario Santana},

  abstractNote = {In Korea, a heavy ion accelerator facility (RAON) has been designed for production of rare isotopes. The 90° bending section of this accelerator includes a 1.3-μm-carbon stripper followed by two dipole magnets and other devices. An incident beam is 18.5 MeV/n 238U33+,34+ ions passing through the carbon stripper at the beginning of the section. The two dipoles are tuned to transport 238U ions with specific charge states of 77+, 78+, 79+, 80+ and 81+. Then other ions will be deflected at the bends and cause beam losses. These beam losses are a concern to the devices of transport/beam line. The absorbed dose in devices and prompt dose in the tunnel were calculated using the FLUKA code in order to estimate radiation damage of such devices located at the 90° bending section and for the radiation protection. A novel method to transport multi-charged 238U ions beam was applied in the FLUKA code by using charge distribution of 238U ions after the stripper obtained from LISE++ code. The calculated results showed that the absorbed dose in the devices is influenced by the geometrical arrangement. The maximum dose was observed at the coils of first, second, fourth and fifth quadruples placed after first dipole magnet. The integrated doses for 30 years of operation with 9.5 pμA 238U ions were about 2 MGy for those quadrupoles. In conclusion, the protection of devices particularly, quadruples would be necessary to reduce the damage to devices. Furthermore, results showed that the prompt radiation penetrated within the first 60 - 120 cm of concrete.},

  doi          = {10.3938/jkps.71.764},

  journal      = {Journal of the Korean Physical Society},

  number       = 11,

  volume       = 71,

  place        = {United States},

  year         = {Sun Nov 19 00:00:00 EST 2017},

  month        = {Sun Nov 19 00:00:00 EST 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.3938/jkps.71.764

Other availability

Search WorldCat to find libraries that may hold this journal

Figures / Tables:

Fig. 1: (Color online) Three-dimensional layout of the beam line rendered by Flair using the FLUKA input geometry.

All figures and tables (2 total)

Save / Share:

Export Metadata

Save to My Library

Figures / Tables found in this record:

Fig. 1 (p. 2)

Table 1 (p. 2)

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Design study of low-energy beam transport for multi-charge beams at RAON

Journal Article Bahng, Jungbae ; Qiang, Ji ; Kim, Eun-San - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

The Rare isotope Accelerator Of Newness (RAON) at the Rare Isotope Science Project (RISP) is being designed to simultaneously accelerate beams with multiple charge states. It includes a driver superconducting (SC) linac for producing 200 MeV/u and 400 kW continuous wave (CW) heavy ion beams from protons to uranium. The RAON consists of a few electron cyclotron resonance ion sources, a low-energy beam transport (LEBT) system, a CW 81.25 MHz, 500 keV/u radio frequency quadrupole (RFQ) accelerator, a medium-energy beam transport system, the SC linac, and a charge-stripper system. The LEBT system for the RISP accelerator facility consists of amore »« less
Cited by 4
https://doi.org/10.1016/j.nima.2015.09.041

Full Text Available
SU-E-T-323: The FLUKA Monte Carlo Code in Ion Beam Therapy

Journal Article Rinaldi, I ; Ludwig-Maximilian University Munich - Medical Physics

Purpose: Monte Carlo (MC) codes are increasingly used in the ion beam therapy community due to their detailed description of radiation transport and interaction with matter. The suitability of a MC code demands accurate and reliable physical models for the transport and the interaction of all components of the mixed radiation field. This contribution will address an overview of the recent developments in the FLUKA code oriented to its application in ion beam therapy. Methods: FLUKA is a general purpose MC code which allows the calculations of particle transport and interactions with matter, covering an extended range of applications. Themore »« less
https://doi.org/10.1118/1.4888656
TU-AB-BRC-02: Accuracy Evaluation of GPU-Based OpenCL Carbon Monte Carlo Package (goCMC) in Biological Dose and Microdosimetry in Comparison to FLUKA Simulations

Journal Article Taleei, R ; Peeler, C ; Qin, N ; ... - Medical Physics

Purpose: One of the most accurate methods for radiation transport is Monte Carlo (MC) simulation. Long computation time prevents its wide applications in clinic. We have recently developed a fast MC code for carbon ion therapy called GPU-based OpenCL Carbon Monte Carlo (goCMC) and its accuracy in physical dose has been established. Since radiobiology is an indispensible aspect of carbon ion therapy, this study evaluates accuracy of goCMC in biological dose and microdosimetry by benchmarking it with FLUKA. Methods: We performed simulations of a carbon pencil beam with 150, 300 and 450 MeV/u in a homogeneous water phantom using goCMCmore »« less
https://doi.org/10.1118/1.4957396
MO-FG-CAMPUS-TeP3-02: Benchmarks of a Proton Relative Biological Effectiveness (RBE) Model for DNA Double Strand Break (DSB) Induction in the FLUKA, MCNP, TOPAS, and RayStation™ Treatment Planning System

Journal Article Stewart, R ; Streitmatter, S ; Traneus, E ; ... - Medical Physics

Purpose: Validate implementation of a published RBE model for DSB induction (RBEDSB) in several general purpose Monte Carlo (MC) code systems and the RayStation™ treatment planning system (TPS). For protons and other light ions, DSB induction is a critical initiating molecular event that correlates well with the RBE for cell survival. Methods: An efficient algorithm to incorporate information on proton and light ion RBEDSB from the independently tested Monte Carlo Damage Simulation (MCDS) has now been integrated into MCNP (Stewart et al. PMB 60, 8249–8274, 2015), FLUKA, TOPAS and a research build of the RayStation™ TPS. To cross-validate the RBEDSBmore »« less
https://doi.org/10.1118/1.4957382
TU-EF-304-10: Efficient Multiscale Simulation of the Proton Relative Biological Effectiveness (RBE) for DNA Double Strand Break (DSB) Induction and Bio-Effective Dose in the FLUKA Monte Carlo Radiation Transport Code

Journal Article Moskvin, V ; Tsiamas, P ; Axente, M ; ... - Medical Physics

Purpose: One of the more critical initiating events for reproductive cell death is the creation of a DNA double strand break (DSB). In this study, we present a computationally efficient way to determine spatial variations in the relative biological effectiveness (RBE) of proton therapy beams within the FLUKA Monte Carlo (MC) code. Methods: We used the independently tested Monte Carlo Damage Simulation (MCDS) developed by Stewart and colleagues (Radiat. Res. 176, 587–602 2011) to estimate the RBE for DSB induction of monoenergetic protons, tritium, deuterium, hellium-3, hellium-4 ions and delta-electrons. The dose-weighted (RBE) coefficients were incorporated into FLUKA to determinemore »« less
https://doi.org/10.1118/1.4925665

Similar Records

Title: Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n 238U ions using the FLUKA code

Abstract

Citation Formats

Figures / Tables:

Title: Estimation of dose delivered to accelerator devices from stripping of 18.5 MeV/n ²³⁸U ions using the FLUKA code