Chirping instabilities produced by a runaway electron beam at a spherical tokamak

被引：0

作者：

I M BALACHENKOV ^{[1
]}

N N BAKHAREV ^{[1
]}

V K GUSEV ^{[1
]}

M V ILIASOVA ^{[1
]}

E M KHILKEVICH ^{[1
]}

P S KORENEV ^{[2
]}

A E KONKOV ^{[2
]}

V B MINAEV ^{[1
]}

Yu V MITRIZHKIN ^{[2
]}

M I PATROV ^{[1
]}

Yu V PETROV ^{[1
]}

N V SAKHAROV ^{[1
]}

A E SHEVELEV ^{[1
]}

O M SKREKEL ^{[1
]}

机构：

[1] Ioffe Institute

[2] Lomonosov Moscow State

来源：

Plasma Science and Technology. | 2023年 / 25卷 / 07期

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D O I：

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学科分类号：

摘要：

A single-crystal diamond detector is fabricated to diagnose 14.1 MeV deuterium-tritium（D-T）fusion neutrons.The size of its diamond film is 4.5 mm × 4.5 mm × 500 μm.This film is sandwiched by a flat,strip-patterned gold electrode.The dark current of this detector is experimentally measured to be lower than 0.1 nA under an electric field of 30 kV cm-1.This diamond detector is used to measure D-T fusion neutrons with a flux of about 7.5 × 105 s-1cm-2.The pronounced peak with a central energy of 8.28 MeV characterizing the 12C（n,α）9Be reaction in the neutron energy spectrum is experimentally diagnosed,and the energy resolution is better than 1.69%,which is the best result reported so far using a diamond detector.A clear peak with a central energy of 6.52 MeV characterizing the 12C（n,n'） 3α reaction is also identified with an energy resolution of better than 7.67%.

引用

页数：6

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