Initial Performance of the Primary Test Stand

Deng, Jianjun; Xie, Weiping; Shi, Feng; Wang, Meng; Li, Hongtao; Song, Seungwoo; Minghe, Xia; He, An; Tian, Qing; Gu, Yuqiu; Guan, Yongchao; Wei, Bin; Zou, Wenkang; Huang, Xianbin; Wang, Lijuan; Zhang, Zhaohui; He, Yuan; Yang, Libing

doi:10.1109/tps.2013.2274154

Cited by 44 publications

(8 citation statements)

References 2 publications

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“…1), 18 which is able to deliver a current of $10 MA with rising time 70 ns (10%-90%) into a vacuum short-circuit load. Fig.…”

Section: The Pts Driver and Diagnosticsmentioning

confidence: 99%

“…3,4,17 Primary test stand (PTS) is a 20 TW pulsed power driver newly constructed at the China Academy of Engineering Physics. 18 The major purposes of the PTS project were to develop an intense pulsed x-ray source, material equation of state studies, and understanding of fusion-relevant physics. The first shot on PTS was done in June of 2012, and up to now more than one hundred shots have been fired.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand

et al. 2015

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The Primary Test Stand (PTS) developed at the China Academy of Engineering Physics is a 20 TW pulsed power driver, which can deliver a ∼10 MA, 70 ns rise-time (10%–90%) current to a short-circuit load and has important applications in Z-pinch driven inertial confinement fusion and high energy density physics. Preliminary results of tungsten wire-array Z-pinch experiments on PTS are presented. The load geometries investigated include 15-mm-tall cylindrical single and nested arrays with diameter ranging from 13 mm to 30 mm, consisting of 132–300 tungsten wires with 5–10 μm in diameter. Multiple diagnostics were fielded to characterize the x-ray radiation from wire-array Z pinches. The x-ray peak power (∼50 TW) and total radiated energy (∼500 kJ) were obtained from a single 20-mm-diam array with 80-ns stagnation time. The highest x-ray peak power up to 80 TW with 2.4 ns FWHM was achieved by using a nested array with 20-mm outer diameter, and the total x-ray energy from the nested array is comparable to that of single array. Implosion velocity estimated from the time-resolved image measurement exceeds 30 cm/μs. The detailed experimental results and other findings are presented and discussed.

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“…1), 18 which is able to deliver a current of $10 MA with rising time 70 ns (10%-90%) into a vacuum short-circuit load. Fig.…”

Section: The Pts Driver and Diagnosticsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand

et al. 2015

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“…1-3 Traditional pulsed power accelerators, such as: ZR, 4 PTS, 5 Angara-5-1, 6 etc., have adopted the mature Marx generator. However, the LC time constant of the Marx generator is usually in the order of microseconds (∼1 µs), which is much larger than the fast z-pinch pulse width (∼100 ns) and needs pulse compression.…”

Section: Introductionmentioning

confidence: 99%

PIC simulation of the vacuum power flow for a 5 terawatt, 5 MV, 1 MA pulsed power system

Liu

Zou²,

Liu

et al. 2018

AIP Advances

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In this paper, a 5 Terawatt, 5 MV, 1 MA pulsed power system based on vacuum magnetic insulation is simulated by the particle-in-cell (PIC) simulation method. The system consists of 50 100-kV linear transformer drive (LTD) cavities in series, using magnetically insulated induction voltage adder (MIVA) technology for pulsed power addition and transmission. The pulsed power formation and the vacuum power flow are simulated when the system works in self-limited flow and load-limited flow. When the pulsed power system isn’t connected to the load, the downstream magnetically insulated transmission line (MITL) works in the self-limited flow, the maximum of output current is 1.14 MA and the amplitude of voltage is 4.63 MV. The ratio of the electron current to the total current is 67.5%, when the output current reached the peak value. When the impedance of the load is 3.0 Ω, the downstream MITL works in the self-limited flow, the maximums of output current and the amplitude of voltage are 1.28 MA and 3.96 MV, and the ratio of the electron current to the total current is 11.7% when the output current reached the peak value. In addition, when the switches are triggered in synchronism with the passage of the pulse power flow, it effectively reduces the rise time of the pulse current.

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“…[1][2][3][4][5] There are several large Z-pinch machines under operation around the world, Z (20 MA, 100 ns) in Sandia National Laboratories (SNL), 1 Angara-5-1 (5 MA, 90 ns) in Russia, 6 and primary test stand (PTS) (8 MA, 70 ns) developed recently in China Academy of Engineering Physics (CAEP). 7 An extensive set of diagnostics is fielded on Z-pinch machines to study pinch physics and the dynamics of imploding plasmas. These include soft x-ray power and energy measurement, xray imaging systems, and fusion neutron diagnostic.…”

Section: Introductionmentioning

confidence: 99%

“…[10][11][12] PTS recently constructed in China is a multiterawatt pulsed power driver based on Marx generators and pulse forming lines, which delivers a current up to 8 MA with a rise time of 70 ns. 7 It is the most powerful Z-pinch facility in China. More than 30 shots Z-pinch experiments have been performed on it, 13,14 and high energy photons have also been investigated during these experiments.…”

Section: Introductionmentioning

confidence: 99%

Measurements of high energy photons in Z-pinch experiments on primary test stand

Zhang

et al. 2015

Review of Scientific Instruments

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High energy photons are measured for the first time in wire-array Z-pinch experiments on the Primary Test Stand (PTS) which delivers a current up to 8 MA with a rise time of 70 ns. A special designed detecting system composed of three types of detectors is used to measure the average energy, intensity, and pulse waveform of high energy photons. Results from Pb-TLD (thermoluminescence dosimeter) detector indicate that the average energy is 480 keV (±15%). Pulse shape of high energy photons is measured by the photodiode detector consisted of scintillator coupled with a photodiode, and it is correlated with soft x-ray power by the same timing signal. Intensity is measured by both TLD and the photodiode detector, showing good accordance with each other, and it is 10(10) cm(-2) (±20%) at 2 m in the horizontal direction. Measurement results show that high energy photons are mainly produced in pinch regions due to accelerated electrons. PTS itself also produces high energy photons due to power flow electrons, which is one order smaller in amplitude than those from pinch region.

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Initial Performance of the Primary Test Stand

Cited by 44 publications

References 2 publications

Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand

Preliminary experimental results of tungsten wire-array Z-pinches on primary test stand

PIC simulation of the vacuum power flow for a 5 terawatt, 5 MV, 1 MA pulsed power system

Measurements of high energy photons in Z-pinch experiments on primary test stand

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