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Publikationer av Per Brunsell

Refereegranskade

Artiklar

[2]
E. Saad och P. R. Brunsell, "Experimental characterization and modelling of the resistive wall mode response in a reversed field pinch," Plasma Physics and Controlled Fusion, vol. 64, no. 5, 2022.
[5]
R. Fridström et al., "Dependence of Perpendicular Viscosity on Magnetic Fluctuations in a Stochastic Topology," Physical Review Letters, vol. 120, no. 22, 2018.
[6]
A. C. Setiadi et al., "Gray-box modeling of resistive wall modes with vacuum-plasma separation and optimal control design for EXTRAP T2R," Fusion engineering and design, vol. 121, s. 245-255, 2017.
[7]
A. C. Setiadi, P. Brunsell och L. Frassinetti, "Improved model predictive control of resistive wall modes by error field estimator in EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 58, no. 12, 2016.
[8]
R. M. Sweeney et al., "Local measurement of error field using naturally rotating tearing mode dynamics in EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 58, no. 12, 2016.
[9]
R. Fridström et al., "Tearing mode dynamics and locking in the presence of external magnetic perturbations," Physics of Plasmas, vol. 23, s. 062504, 2016.
[11]
R. Fridström, L. Frassinetti och P. R. Brunsell, "Hysteresis in the tearing mode locking/unlocking due to resonant magnetic perturbations in EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 57, no. 10, 2015.
[12]
A. C. Setiadi, P. Brunsell och L. Frassinetti, "Implementation of model predictive control for resistive wall mode stabilization on EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 57, no. 10, 2015.
[13]
L. Frassinetti et al., "The tearing mode locking-unlocking mechanism to an external resonant field in EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 56, no. 10, s. 104001, 2014.
[14]
I. Bykov et al., "Transport asymmetry and release mechanisms of metal dust in the reversed-field pinch configuration," Plasma Physics and Controlled Fusion, vol. 56, no. 3, s. 035014, 2014.
[15]
L. Frassinetti et al., "A method for the estimate of the wall diffusion for non-axisymmetric fields using rotating external fields," Plasma Physics and Controlled Fusion, vol. 55, no. 8, s. 084001, 2013.
[16]
[17]
K. E. J. Olofsson, P. R. Brunsell och J. R. Drake, "Experimental modal analysis of resistive wall toroidal pinch plasma dynamics," Nuclear Fusion, vol. 53, no. 7, s. 072003, 2013.
[18]
K. E. J. Olofsson et al., "A first attempt at few coils and low-coverage resistive wall mode stabilization of EXTRAP T2R," Plasma Physics and Controlled Fusion, vol. 54, no. 9, s. 094005, 2012.
[19]
K. E. J. Olofsson, P. R. Brunsell och J. R. Drake, "Measurements of the vacuum-plasma response in EXTRAP T2R using generic closed-loop subspace system identification," Fusion engineering and design, vol. 87, no. 12, s. 1926-1929, 2012.
[20]
L. Frassinetti et al., "Tearing mode velocity braking due to resonant magnetic perturbations," Nuclear Fusion, vol. 52, no. 10, s. 103014, 2012.
[22]
K. E. J. Olofsson et al., "Predictor-based multivariable closed-loop system identification of the EXTRAP T2R reversed field pinch external plasma response," Plasma Physics and Controlled Fusion, vol. 53, no. 8, s. 084003, 2011.
[23]
E. Olofsson och P. R. Brunsell, "Closed-Loop System Identification and Controller Reconfiguration for EXTRAP T2R Reversed-Field Pinch," IEEE Transactions on Plasma Science, vol. 38, no. 3, s. 365-370, 2010.
[24]
L. Frassinetti et al., "Resonant magnetic perturbation effect on tearing mode dynamics," Nuclear Fusion, vol. 50, no. 3, s. 035005, 2010.
[25]
K. E. J. Olofsson et al., "Synthesis and operation of an FFT-decoupled fixed-order reversed-field pinch plasma control system based on identification data," Plasma Physics and Controlled Fusion, vol. 52, no. 10, s. 104005, 2010.
[26]
E. Olofsson och P. Brunsell, "Controlled magnetohydrodynamic mode sustainment in the reversed-field pinch : Theory, design and experiments," Fusion engineering and design, vol. 84, no. 7-11, s. 1455-1459, 2009.
[27]
L. Frassinetti, P. R. Brunsell och J. R. Drake, "Experiments and modelling of active quasi-single helicity regime generation in a reversed field pinch," Nuclear Fusion, vol. 49, no. 7, 2009.
[28]
L. Frassinetti, P. R. Brunsell och J. R. Drake, "Heat transport in the quasi-single-helicity islands of EXTRAP T2R," Physics of Plasmas, vol. 16, no. 3, 2009.
[29]
L. Frassinetti et al., "Heat transport modelling in EXTRAP T2R," Nuclear Fusion, vol. 49, no. 2, 2009.
[30]
W. Suttrop et al., "In-vessel saddle coils for MHD control in ASDEX Upgrade," Fusion engineering and design, vol. 84, no. 2-6, s. 290-294, 2009.
[32]
L. Frassinetti et al., "Spontaneous quasi single helicity regimes in EXTRAP T2R reversed-field pinch," Physics of Plasmas, vol. 14, no. 11, 2007.
[33]
D. Yadikin, P. Brunsell och R. Paccagnella, "Advanced feedback control methods in EXTRAP T2R," Physics of Plasmas, vol. 13, no. 7, s. 072109, 2006.
[34]
D. Yadikin, P. Brunsell och J. R. Drake, "Intelligent shell feedback control in EXTRAP T2R reversed field pinch with partial coverage of the toroidal surface by a discrete active coil array," Plasma Physics and Controlled Fusion, vol. 48, no. 1, s. 1-14, 2006.
[35]
[36]
M. Kuldkepp et al., "Method for measuring radial impurity emission profiles using correlations of line integrated signals," Review of scientific instruments, vol. 77, no. 4, s. 043508, 2006.
[37]
P. R. Brunsell et al., "Reversed field pinch operation with intelligent shell feedback control in EXTRAP T2R," Nuclear Fusion, vol. 46, no. 11, s. 904-913, 2006.
[38]
M. Cecconello et al., "Rotation in a reversed field pinch with active feedback stabilization of resistive wall modes," Plasma Physics and Controlled Fusion, vol. 48, no. 9, s. 1311-1331, 2006.
[39]
P. Brunsell et al., "Active control of multiple resistive wall modes," Plasma Physics and Controlled Fusion, vol. 47, no. 12 B, s. B25-B36, 2005.
[40]
M. Cavinato et al., "Comparison of strategies and regulator design for active control of MHD modes," Fusion engineering and design, vol. 74, no. 1-4, s. 549-553, 2005.
[42]
P. Brunsell et al., "Feedback stabilization of resistive wall modes in a reversed-field pinch," Physics of Plasmas, vol. 12, no. 9, s. 092508, 2005.
[44]
P. Brunsell et al., "Feedback Stabilization of Multiple Resistive Wall Modes," Physical Review Letters, vol. 93, no. 22, s. 225001, 2004.
[45]
J. A. Malmberg et al., "Mode- and plasma rotation in a resistive shell reversed-field pinch," Physics of Plasmas, vol. 11, no. 2, s. 647-658, 2004.
[46]
P. Franz et al., "Compact soft x-ray multichord camera : Design and initial operation," Review of Scientific Instruments, vol. 74, no. 3 II, s. 2152-2156, 2003.
[47]
P. Martin et al., "Overview of quasi-single helicity experiments in reversed field pinches," Nuclear Fusion, vol. 43, no. 12, s. 1855-1862, 2003.
[48]
Per. R. Brunsell et al., "Resistive wall modes in the EXTRAP T2R reversed-field pinch," Physics of Plasmas, vol. 10, s. 3823, 2003.
[49]
J.-A. Malmberg och P. Brunsell, "Resistive wall instabilities and tearing mode dynamics in the EXTRAP T2R thin shell reversed-field pinch," Physics of Plasmas, vol. 9, no. 1, s. 212-221, 2002.
[50]
G. Serianni et al., "Electrostatic fluxes and plasma rotation in the edge region of EXTRAP-T2R," Czechoslovak Journal of Physics, vol. 51, no. 10, s. 1119-1127, 2001.
[51]
Y. Yagi et al., "Evolution process of the mode wall-locking and phase-locking in a reversed field pinch plasma," Physics of Plasmas, vol. 8, no. 5, s. 1625-1635, 2001.
[52]
P. Brunsell et al., "Initial results from the rebuilt EXTRAP T2R RFP device," Plasma Physics and Controlled Fusion, vol. 43, no. 11, s. 1457-1470, 2001.
[53]
J.-A. Malmberg et al., "Locked modes in two reversed-field pinch devices of different size and shell system," Physics of Plasmas, vol. 7, no. 10, s. 4184-4196, 2000.
[54]
M. J. Rubel et al., "Molybdenum limiters for Extrap-T2 upgrade : surface properties and high heat flux testing," Fusion engineering and design, vol. 49, s. 323-329, 2000.
[55]
K. Sasaki et al., "Anisotropy of Ion Temperature in a Reversed-field Pinch Plasma," Plasma Physics and Controlled Fusion, vol. 39, s. 333-338, 1997.
[56]
D. Larsson et al., "Surface modification by solid target boronisation in the Extrap T2 experiment," Vacuum, vol. 48, no. 7-9, s. 693-695, 1997.
[57]
H. Bergsåker et al., "Wall conditioning and particle control in Extrap T2," Journal of Nuclear Materials, vol. 241-243, s. 993-997, 1997.

Konferensbidrag

[58]
E. Saad och P. R. Brunsell, "Experimental validation of resistive wall mode instability models for active magnetic feedback control," i 46th EPS Conference on Plasma Physics, EPS 2019, 2019.
[59]
A. C. Setiadi, P. R. Brunsell och L. Frassinetti, "Design and operation of fast model predictive controller for stabilization of magnetohydrodynamic modes in a fusion device," i Proceedings of the IEEE Conference on Decision and Control, 2016, s. 7347-7352.
[60]
R. Fridström et al., "Estimation of anomalous viscosity based on modeling of experimentally observed plasma rotation braking induced by applied resonant magnetic perturbations," i 43th European Physical Society (EPS) Conference on Plasma Physics. July 4 – July 8, 2016, 2016.
[61]
A. C. Setiadi et al., "Reduced Order Modelling of Resistive Wall Modes in EXTRAP T2R Reversed-Field Pinch," i 43rd European Physical Society Conference on Plasma Physics, EPS 2016, 2016.
[62]
L. Frassinetti et al., "Braking torque due to external perturbations in EXTRAP T2R," i Joint 19th ISHW and 16th IEA-RFP workshop : Padova, Italy, 16-20 September, 2013, 2013.
[63]
L. Frassinetti, S. Menmuir och P. Brunsell, "Resonant magnetic perturbation penetration and locking threshold in EXTRAP T2R," i 40th EPS Conference on Plasma Physics : Espoo, Finland, 1-5 July, 2013, 2013.
[64]
L. Frassinetti et al., "A Technique for the Estimation of the Wall Diffusion Time," i 54th Meeting of the APS Division of Plasma Physics, November 2012,  Providence, USA, 2012.
[65]
F. Volpe et al., "Error Field Assessment from Driven Mode Rotation : Results from Extrap-T2R Reversed-Field-Pinch and Perspectives for ITER," i 54th Meeting of the APS Division of Plasma Physics, November 2012,  Providence, USA, 2012.
[66]
[67]
L. Frassinetti et al., "Flow braking due to non-resonant external perturbations in EXTRAP T2R and comparison   with neoclassical toroidal viscosity torque," i 39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics, 2012, s. 1190-1193.
[68]
L. Frassinetti et al., "Screening effect of plasma flow on RMPs in EXTRAP T2R," i 39th European Physical Society (EPS) Conference on Plasma Physics, 2012, s. P1.067.
[69]
L. Frassinetti et al., "Screening effect of plasma flow on resonant magnetic perturbations in EXTRAP T2R," i EPS Conf. Plasma Phys., EPS Int. Congr. Plasma Phys., 2012, s. 365-368.
[70]
M. W. M. Khan et al., "Braking of Plasma Rotation by Non-axisymmetric Magnetic Fields in EXTRAP T2R," i Proceedings of the 38th European Physical Society Conference on Plasma Physics, 2011, s. 841-844.
[71]
K. E. J. Olofsson et al., "Cascade and multibatch subspace system identification for multivariate vacuum-plasma response characterisation," i Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC11), 2011, s. 2614-2619.
[72]
S. Menmuir et al., "Response of EXTRAP T2R plasma velocity and ion temperature profiles to varying plasma conditions," i 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts, 2011, s. 1216-1219.
[73]
L. Frassinetti et al., "The effect of external control fields on tearing mode dynamics," i Proceedings of the 38th European Physical Society Conference on Plasma Physics, 2011, s. 1220-1223.
[74]
K. E. J. Olofsson et al., "Closed-loop MIMO ARX estimation of concurrent external plasma response eigenmodes in magnetic confinement fusion," i Proceedings of the 49th Conference on Decision and Control (CDC’10), 2010, s. 2954-2959.
[75]
L. Frassinetti et al., "Controlled Resonant Magnetic Perturbation Physics Studies on EXTRAP T2R," i Proc. 23 rd IAEA Fusion Energy Conference, 2010.
[76]
E. Olofsson, P. Brunsell och J. Drake, "Closed-loop direct parametric identification of magnetohydrodynamic normal modes spectra in EXTRAP-T2R reversed-field pinch," i 2009 IEEE CONTROL APPLICATIONS CCA & INTELLIGENT CONTROL, 2009, s. 1449-1454.
[77]
E. Olofsson och P. R. Brunsell, "Closed-loop identification and controller reconfiguration for EXTRAP T2R reversed-field pinch," i 2009 23RD IEEE/NPSS SYMPOSIUM ON FUSION ENGINEERING, 2009, s. 229-232.
[78]
W. Suttrop et al., "Physical description of external circuitry for Resistive Wall Mode control in ASDEX Upgrade," i 36th European Physical Society Conference on Plasma Physics, 2009, s. P-1.165.
[79]
K. E. J. Olofsson et al., "Vector dither experiment design and direct parametric identification of reversed-field pinch normal modes," i Proceedings of the IEEE Conference on Decision and Control, 2009, s. 1348-1353.
[80]
L. Frassinetti et al., "Active feedback control of QSH in EXTRAP-T2R," i 35th European Physical Society Conference on Plasma Physics. Hersonissos, Crete, Greece. 9–13 June 2008, 2008.
[81]
W. Suttrop et al., "Design of in-vessel coils for MHD control in ASDEX Upgrade," i Europhysics Conf. Abstracts Vol. 32D, 2008, s. P-4.075.
[82]
W. Suttrop et al., "Design of in-vessel saddle coils for MHD control in ASDEX Upgrade," i EPS Conf. Plasma Phys., EPS - Europhys. Conf. Abstr., 2008, s. 1546-1549.
[83]
H. Bergsåker et al., "Metal impurity fluxes and plasma-surface interactions in EXTRAP T2R," i PROCEEDINGS OF THE 17TH INTERNATIONAL VACUUM CONGRESS/13TH INTERNATIONAL CONFERENCE ON SURFACE SCIENCE/INTERNATIONAL CONFERENCE ON NANOSCIENCE AND TECHNOLOGY, 2008.
[84]
M. Cecconello et al., "Resistive tearing modes dynamics with plasma control in a reversed field pinch," i 35th EPS Conference on Plasma Physics 2008, EPS 2008 - Europhysics Conference Abstracts : Volume 32, Issue 1, 2008, s. 429-432.
[85]
J. R. Drake et al., "Reversed-Field Pinch Contributions to Resistive Wall Mode Physics and Control," i 22nd IAEA Fusion Energy Conference. Geneva, Switzerland. 13-18 October, 2008, 2008.
[86]
K. E. J. Olofsson et al., "Stability analysis and model-based control in EXTRAP-T2R with time-delay compensation," i Proceedings of the 47th IEEE Conference on Decision and Control, Cancun, Mexico, Dec. 9-11, 2008, 2008, s. 2044-2049.
[87]
W. Suttrop et al., "Active in-vessel coils and a conducting wall for MHD control in ASDEX Upgrade," i 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, 2007, s. 2110-2113.
[88]
K. E. J. Olofsson och P. Brunsell, "Initial reference-spectrum resistive wall mode feedback control simulation and multivariable design," i 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, 2007, s. 728-731.
[89]
S. Menmuir et al., "Large periodic fluctuations of plasma signals in EXTRAP T2R," i Proceedings of the 34th European Physical Society Conference on Plasma Physics, 2007.
[90]
S. Menmuir et al., "Particle flux and surface interaction in EXTRAP T2R," i 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, 2007, s. 347-350.
[91]
P. Brunsell et al., "Resistive wall mode feedback control experiments in EXTRAP T2R," i 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, 2007, s. 544-547.
[92]
L. Frassinetti et al., "Spontaneous QSH in the EXTRAP T2R reversed-field pinch," i 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts, 2007, s. 579-582.
[93]
M. Cecconello et al., "Current profile modifications with active feedback stabilization of resistive wall modes in a reversed field pinch," i Proceedings of the 33rd European Physical Society Conference on Plasma Physics, 2006, s. 1680-1683.
[95]
D. Yadikin, P. Brunsell och J. R. Drake, "Intelligent shell feedback control of resistive wall modes in EXTRAP T2R," i 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets : Europhysics Conference Abstracts, 2005, s. 1602-1605.
[96]
S. Menmuir et al., "Ion and mode rotation in the EXTRAP T2R device during discharges with and without the application of feedback control," i 32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets; Tarragona; Spain; 27 June 2005 through 1 July 2005, 2005, s. 1650-1653.
[97]
G. Marchiori et al., "Open loop characterization of an active control system of MHD modes," i Proceedings of the 23rd Symposium of Fusion Technology, 2005, s. 555-560.
[98]
M. Kuldkepp et al., "Oxygen impurity profile studies in the EXTRAP T2R reversed field pinch," i 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets : Europhysics Conference Abstracts, 2005, s. 413-416.
[99]
M. Cecconello et al., "Rotation evolution of tearing modes during feedback stabilization of resistive wall modes in a reversed field pinch," i 32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets; Tarragona; Spain; 27 June 2005 through 1 July 2005, 2005, s. 1606-1609.
[101]
D. Yadikin et al., "Feedback controller for saddle coils for suppression of resistive wall modes in EXTRAP T2R," i 31st European Physical Society Conference on Controlled Fusion and Plasma Physics, 2004.
[102]
P. R. Brunsell et al., "First results from intelligent shell experiments with partial coil coverage in the EXTRAP T2R reversed field pinch," i Europhysics Conf. Abstracts Vol 29C, 2004, s. P-5.190.
[104]
D. Yadikin och P. Brunsell, "Comparision of experimental resistive wall mode growth rates in the EXTRAP T2R reversed field pinch with linear theory," i 30th Eruopean Physical Society Conference on Controlled Fusion and Plasma Physics : St. Petersburg 2003, 2003.
[105]
D. Gregoratto et al., "Feedback control of Resistive Wall Modes in RFX and Extrap-T2R," i Europhysics Conf. Abstracts, Vol 27A, 2003, s. P-3.220.
[106]
P. Brunsell et al., "Quasi Single Helicity in EXTRAP-T2R," i Europhysics Conf. Abstracts Vol. 27A, 2003, s. P-1.211.
[107]
P. Martin et al., "Overview of quasi single helicity experiments in reversed field pinches," i IAEA-CN-94 : Fusion Energy 2002, 2002, s. Paper EX/C1-2.
[108]
P. R. Brunsell, J.-A. Malmberg och D. Yadikin, "Resistive wall mode studies in the EXTRAP T2R reversed-field pinch," i Europhysics Conf. Abstracts 26B, 2002, s. P-1.107.
[109]
J.-A. Malmberg et al., "Reversed-Field Pinch Experiments in EXTRAP T2R with a Resistive Shell Boundary," i IAEA-CN-94, 2002, s. Paper EX/P2-02.
[110]
J. R. Drake et al., "First results from the EXTRAP T2R RFP experiment," i Europhysics Conf. Abstracts Vol 25A, 2001, s. 457-460.
[111]
J.-A. Malmberg och P. R. Brunsell, "Mode dynamics in the rebuilt EXTRAP T2R RFP device," i Europhysics Conf. Abstracts Vol 25A, 2001, s. 137-140.
[112]
H. E. Sätherblom, P. Brunsell och D. D. Schnack, "Effects of induced toroidal plasma rotation on plasma wall locking in the reversed-field pinch," i Europhysics Conf. Abstracts Vol 24B, 2000, s. 1112-1115.
[113]
P. R. Brunsell et al., "Mode Dynamics and Confinement in the Reversed-field Pinch," i 18th IAEA Fusion Energy Conference in Sorrento, Italy, 4-10 Oct. 2000. Paper IAEA-CN-77/EXP3/14, 2000.
[114]
P. R. Brunsell et al., "Mode dynamics and confinement in the reversed-field pinch," i IAEA-CN-77 : Fusion Energy 2000, 2000, s. Paper EXP3/14.

Icke refereegranskade

Konferensbidrag

[115]
R. Fridström et al., "Multiple-harmonics RMP effect on tearing modes in EXTRAP T2R," i 44th EPS Conference on Plasma Physics, 26/06/2017 to 30/06/2017, Belfast, Northern Irland, 2017.
[116]
L. Frassinetti et al., "EXTEAP T2R overview," i 17th IEA/RFP Workshop, 26-29 october 2015, 2015.
[117]
L. Frassinetti et al., "TM locking and unlocking mechanism to an external resonant field," i Meeting of the Nordic Research Units in EUROfusion, 2014.
[118]
[119]
P. Brunsell et al., "Resistive Wall Mode Studies utilizing External Magnetic Perturbations," i Proceeding of the 25th IAEA Fusion Energy Conference, 2014.
[120]
A. C. Setiadi, P. Brunsell och L. Frassinetti, "Numerical Study of Fast Model Predictive Control in EXTRAP T2R Reversed Field Pinch," i Joint 19th ISHW and 16th IEA-RFP workshop; Padova, Italy, 16-20 September, 2013, 2013.
[121]
L. Frassinetti et al., "Tearing mode locking and unlocking to an error field in EXTRAP T2R," i 18th Workshop on MHD Stability Control : Santa Fe, New Mexico, USA, 18-20 November, 2013, 2013.
[122]
L. Frassinetti et al., "EXTRAP Coils and Tearing Mode Dynamics," i 16th Workshop on MHD stability control, November 20 - 22, 2011 San Diego, CA, USA, 2011.
[123]
S. Hokin et al., "Locked modes and plasma-wall interaction in a reversed-field pinch with aresistive shell and carbon first wall," i Proceedings of the 17th International Conference on Fusion Energy, 1999.
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2024-04-23 00:33:25