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Boris Stepanov

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Publications associées (118)

Test Results of RF ITER TF Conductors in the SULTAN Test Facility

Pierluigi Bruzzone, Boris Stepanov

The cable-in-conduit-conductors (CICC) for the ITER Toroidal Field (TF) Coils are tested in the Sultan test facility in order to estimate their AC and DC performances under operating conditions. The tests are carried out on different stages of conductor pr ...

IEEE Institute of Electrical and Electronics Engineers2014

Recent Tests of the ITER Conductors and Highlights in Nb3Sn Conductors Behavior

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Kamil Sedlák

The tests of the ITER Toroidal Field (TF) full length conductors (hundreds of meters, production phase IN) were started at the end of year 2012 and were performed accordingly to the firmly specified test program. The TF conductors produced by the ITER dome ...

IEEE Institute of Electrical and Electronics Engineers2014

Optimization of Heat Treatment of Japanese Nb3Sn Conductors for Toroidal Field Coils in ITER

Pierluigi Bruzzone, Boris Stepanov, Kamil Sedlák

The optimization of the heat treatment of Nb3Sn conductors for toroidal field coils in ITER was attempted to improve the current sharing temperatures (T-CS). Using the strand, we chose the pattern at 570 degrees C for 250 h and 650 degrees C for 100 h as t ...

IEEE Institute of Electrical and Electronics Engineers2014

Commissioning of the Main Coil of the EDIPO Test Facility

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Martin Vogel, Markus Jenni, Giancarlo Croari, Stephen Alfred March, Davide Uglietti

The EDIPO test facility is erected at CRPP Villigen with the aim of providing a flexible, high field test bed for high current force flow superconductors. The EDIPO main coil is a tilted-head race-track pair wound by a graded Nb3Sn cable-in-conduit conduct ...

IEEE Institute of Electrical and Electronics Engineers2014

The performance test and analysis of the third and fourth China PF conductor for ITER

Pierluigi Bruzzone, Boris Stepanov, Bo Liu

The third Chinese PF conductor for ITER PF5 (PFCN3) and the fourth Chinese PF conductor for ITER PF2/3/4 (PFCN4) conductor in Phase II were manufactured in ASIPP and tested in the SULTAN facility. This paper introduces the PFCN3 and PFCN4 sample manufactur ...

Elsevier2014

Conductor Performance of TFCN4 and TFCN5 Samples for ITER TF Coils

Pierluigi Bruzzone, Boris Stepanov, Fang Liu, Kamil Sedlák, Bo Liu

The fourth China TF conductor sample (TFCN4) for Phase II, the left leg of the fifth China TF conductor sample (TFCN5) for Phase III, as well as the right leg of the TFCN5 conductor for Phase IV, were made of the WST strands, cabled by Baosheng, jacketed a ...

IEEE Institute of Electrical and Electronics Engineers2014

Manufacturing and Preliminary Performance Expectations of Nb3Sn Based Conductors Allocated for the First ITER TF Coil With CICC From Korea

Pierluigi Bruzzone, Boris Stepanov

Manufacturing of superconducting Nb3Sn based Cable-in-Conduit Conductor (CICC) for Toroidal Field (IT) coils for the ITER tokamak under the responsibility of the ITER Domestic Agency for the Republic of Korea, ITER Korea, has been in progress since early 2 ...

IEEE Institute of Electrical and Electronics Engineers2014

Examination of Nb3Sn Conductors for ITER Central Solenoids

Pierluigi Bruzzone, Boris Stepanov, Kamil Sedlák

The performance of two Nb3Sn conductors for the ITER central solenoids was tested. The current sharing temperatures (T-cs) were measured over 17 050 electromagnetic cycles, including four thermal cycles between 4.2 K and room temperature. T-cs declined alm ...

IEEE Institute of Electrical and Electronics Engineers2013

Prospects for the use of high-T-c superconductors in fusion magnets and options for their test in SULTAN

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March, Davide Uglietti

In the last few years, the critical current densities of long commercially available REBa2Cu3O7-x (RE-123, where RE represents Y or a rare earth element) coated conductors have reached values of 250 A/cm-width at 77K and zero applied field. Even higher val ...

Elsevier Science Sa2013

High current superconductors for DEMO

Pierluigi Bruzzone, Boris Stepanov, Kamil Sedlák

In the assumption that DEMO will be an inductively driven tokamak, the number of load cycles will be in the range of several hundred thousands. The requirements for a new generation of Nb3Sn based high current conductors for DEMO are drafted starting from ...

Elsevier Science Sa2013

Results of the TFEU6 Sample Tested in SULTAN

Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March

This paper presents the results of the latest European Conductor Performance Qualification Sample for the ITER toroidal field coils. The standard qualification test was performed in the SULTAN facility at CRPP. The sample consisted of two 3.5-m lengths of ...

IEEE Institute of Electrical and Electronics Engineers2013

Preliminary Performance Test Results of First CICC From Korea Destined for an ITER TF Magnet

Pierluigi Bruzzone, Boris Stepanov, Kyungjin Kim

The Republic of Korea is participating in the ITER project to construct and operate the ITER tokamak for the purpose of demonstrating the feasibility of fusion power. ITER Korea, the implementing agency for the Republic of Korea that is procuring items for ...

IEEE Institute of Electrical and Electronics Engineers2013

Monitoring of the Thermal Strain Distribution in CICCs During the Cyclic Loading Tests in SULTAN

Pierluigi Bruzzone, Boris Stepanov, Ciro Calzolaio

A technique to measure in situ the behavior of the magnetic susceptibility vs. temperature, chi(T), for a cable-in-conduit-conductor (CICC) in the SULTAN test facility has been developed. The same kind of measurements are performed for the corresponding fr ...

IEEE Institute of Electrical and Electronics Engineers2013

Experimental and Analytical Approaches on JT-60SA TF Strand and TF Conductor Quality Control During Qualification and Production Manufacture Stages

Pierluigi Bruzzone, Boris Stepanov

In the framework of the JT-60SA project, aiming at upgrading the present JT-60U tokamak, Europe as part of its in-kind contribution within the Broader Approach agreement, will provide the full Toroidal Field (TF) magnet system. For this purpose, Fusion for ...

IEEE Institute of Electrical and Electronics Engineers2013

Status of Conductor Qualification for the ITER Central Solenoid

Pierluigi Bruzzone, Boris Stepanov

The ITER central solenoid (CS) must be capable of driving inductively 30 000 15 MA plasma pulses with a burn duration of 400 s. This implies that during the lifetime of the machine, the CS, comprised of six independently powered coil modules, will have to ...

IEEE Institute of Electrical and Electronics Engineers2013

Testing of RF 100 m TF Qualification Conductor in the SULTAN Test Facility

Pierluigi Bruzzone, Boris Stepanov

A conductor for ITER toroidal field (TF) coils is the cable-in-conduit conductor (CICC) type, which is made of Nb3Sn superconducting strands encased in a stainless steel tubular jacket. A 120-m-long prototype has been designed in accordance with ITER requi ...

IEEE Institute of Electrical and Electronics Engineers2013

The performance test and analysis of ITER Main and Correction Busbar conductor

Pierluigi Bruzzone, Boris Stepanov, Bo Liu

The first ITER Main Busbar (MBCN1) and Correction Busbar (CBCN1) conductor samples were manufactured in ASIPP and tested in the SULTAN facility. This paper introduces the sample manufacture, including strand, cabling, jacketing and sample preparation, and ...

Elsevier Science Sa2013

SULTAN test facility: Summary of recent results

Pierluigi Bruzzone, Boris Stepanov, Giancarlo Croari, Kamil Sedlák

The test campaigns of the ITER conductors in the SULTAN test facility re-started in December 2011 after three months break. The main focus of the activities is about the qualification tests of the Central Solenoid (CS) conductors, with three different samp ...

Elsevier Science Sa2013

Operation and Test Results From the SULTAN Test Facility

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Martin Vogel, Ciro Calzolaio, Stephen Alfred March

In the period between August 2010 and August 2011 the SULTAN test facility has been continuously operated, with over one dozen test campaigns. Among the ITER conductors, five Toroidal Field (TF) samples, two Central Solenoid (CS) samples and four NbTi samp ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Examination of Japanese Mass-Produced Nb3Sn Conductors for ITER Toroidal Field Coils

Pierluigi Bruzzone, Boris Stepanov

The performances of six Nb3Sn conductors for the ITER Toroidal Field coils were tested. Four of them showed similar degradation rates of their current sharing temperatures T-cs over 1,000 electromagnetic cycles. By contrast, two of them showed sharp T-cs d ...

IEEE-Inst Electrical Electronics Engineers Inc2012

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