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Journal Articles

Development of a new microdosimetric biological weighting function for the RBE$$_{10}$$ assessment in case of the V79 cell line exposed to ions from $$^{1}$$H to $$^{238}$$U

Parisi, A.*; Sato, Tatsuhiko; Matsuya, Yusuke; Kase, Yuki*; Magrin, G.*; Verona, C.*; Tran, L.*; Rosenfeld, A.*; Bianchi, A.*; Olko, P.*; et al.

Physics in Medicine & Biology, 65(23), p.235010_1 - 235010_20, 2020/12

 Times Cited Count:6 Percentile:85.91(Engineering, Biomedical)

A new biological weighting function (IBWF) is proposed to phenomenologically relate microdosimetric lineal energy probability density distributions with the relative biological effectiveness (RBE) for the in vitro clonogenic cell survival (survival fraction = 10%) of the most commonly used mammalian cell line, i.e. the Chinese hamster lung fibroblasts (V79). The RBE values assessed by the IBWF were found to be consistent and in good agreement with the ones calculated in combination with computer-simulated microdosimetric spectra, with an average relative deviation of 0.8% and 5.7% for H and C ions respectively.

Journal Articles

Actuator and diagnostic requirements of the ITER plasma control system

Snipes, J. A.*; Beltran, D.*; Casper, T.*; Gribov, Y.*; Isayama, Akihiko; Lister, J.*; Simrock, S.*; Vayakis, G.*; Winter, A.*; Yang, Y.*; et al.

Fusion Engineering and Design, 87(12), p.1900 - 1906, 2012/12

 Times Cited Count:21 Percentile:86.21(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Parallel filtering in global gyrokinetic simulations

Jolliet, S.; McMillan, B. F.*; Villard, L.*; Vernay, T.*; Angelino, P.*; Tran, T. M.*; Brunner, S.*; Bottino, A.*; Idomura, Yasuhiro

Journal of Computational Physics, 231(3), p.745 - 758, 2012/02

 Times Cited Count:11 Percentile:60.56(Computer Science, Interdisciplinary Applications)

Journal Articles

Gyrokinetic simulations of turbulent transport; Size scaling and chaotic behaviour

Villard, L.*; Bottino, A.*; Brunner, S.*; Casati, A.*; Chowdhury, J.*; Dannert, T.*; Ganesh, R.*; Garbet, X.*; G$"o$rler, T.*; Grandgirard, V.*; et al.

Plasma Physics and Controlled Fusion, 52(12), p.124038_1 - 124038_18, 2010/11

 Times Cited Count:17 Percentile:59.53(Physics, Fluids & Plasmas)

Journal Articles

Global nonlinear electromagnetic simulations of tokamak turbulence

Bottino, A.*; Scott, B. D.*; Brunner, S.*; McMillan, B. F.*; Tran, T. M.*; Vernay, T.*; Villard, L.*; Jolliet, S.; Hatzky, R.*; Peeters, A. G.*

IEEE Transactions on Plasma Science, 38(9), p.2129 - 2135, 2010/09

 Times Cited Count:24 Percentile:71.36(Physics, Fluids & Plasmas)

Journal Articles

Design of electron cyclotron heating and current drive system of ITER

Kobayashi, Noriyuki; Bigelow, T.*; Bonicelli, T.*; Cirant, S.*; Denisov, G.*; Heidinger, R.*; Henderson, M.*; Hogge, J.-P.*; Piosczyk, B.*; Ramponi, G.*; et al.

AIP Conference Proceedings 933, p.413 - 416, 2007/10

Since the EDA 2001, Design of Electron Cyclotron Heating and Current Drive (ECH&CD) System have been modified due to progress of physics understanding and change of interface. Nominal RF power 20 MW is injected by four upper launchers or one equatorial launcher. RF beams are steered by a front steering mirror. DCHV power supply will be composed of IGBT pulse step modulators because of high frequency modulation and design flexibility to three different types of 170 GHz gyrotrons from three parties. The RF power is transmitted by 63.5 mm dia corrugated waveguide and switched by a waveguide switch between the upper launcher and the equatorial launcher. A start-up system for initial discharge is composed of three 127.5 GHz gyrotrons and dedicated DCHV power supply. Three of transmission lines are shared between 170 GHz and 127.5 GHz gyrotrons to inject start-up RF beam through the equatorial launcher. R&Ds for high power long pulse have been on-going to obtain a reliable ITER ECH&CD system.

Journal Articles

A Global collisionless PIC code in magnetic coordinates

Jolliet, S.*; Bottino, A.*; Angelino, P.*; Hatzky, R.*; Tran, T. M.*; McMillan, B. F.*; Sauter, O.*; Appert, K.*; Idomura, Yasuhiro; Villard, L.*

Computer Physics Communications, 177(5), p.409 - 425, 2007/09

 Times Cited Count:159 Percentile:98.57(Computer Science, Interdisciplinary Applications)

A global plasma turbulence simulation code, ORB5, is presented. A particular feature is the use of straight-field-line magnetic coordinates and a field-aligned Fourier filtering technique that dramatically improves the performance of the code in terms of both the numerical noise reduction and the maximum time step allowed. Another feature is the capability to treat arbitrary axisymmetric ideal MHD equilibrium configurations. The code is validated against an analytical theory of zonal flows and against other codes for a selection of linear and nonlinear tests.

Oral presentation

System size and shear flow effects on ITG turbulence

McMillan, B. F.*; Jolliet, S.; Tran, T. M.*; Bottino, A.*; Lapillonne, X.*; Villard, L.*

no journal, , 

Oral presentation

Characterization of diamond crystal by using confocal fluorescence microscope with a single defect as a probe

Onoda, Shinobu; Abe, Hiroshi; Yamamoto, Takashi; Oshima, Takeshi; Taniguchi, Takashi*; Teraji, Tokuyuki*; Siyushev, P.*; Tran, T. H.*; Yang, S.*; Fedder, H.*; et al.

no journal, , 

no abstracts in English

Oral presentation

Photon energy dependence of photo-neutron production from the $$^{197}$$Au($$gamma$$,xn) reaction

Tran, T. K.*; Sanami, Toshiya*; Yamazaki, Hirohito*; Itoga, Toshiro*; Sakaki, Yasuhito*; Nguyen, L. T. T.*; Kirihara, Yoichi; Nakashima, Hiroshi*; Miyamoto, Shuji*; Asano, Yoshihiro*

no journal, , 

no abstracts in English

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