14 MeV Neutron Detectors


[Objectives]
Tritons of 1.0 MeV produced in the d(d,p)t reaction slow down and may undergo a DT fusion reaction, emitting 14 MeV neutron(triton burnup). The behavior of 1 MeV tritons is important to predict the properties of D-T produced 3.5 MeV alphas because 1 MeV tritons and 3.5 MeV alphas have similar kinematics properties.
14 MeV neutron emission rate is measured for the triton burnup study aiming prediction of the alpha particle behaviors.

[Detectors]
Scintillation fiber detector develped by the Los Alamos National Laboratory


[Photograph]

[Specifications]
ĄTime resolution :10 ms
ĄDynamic range:0 ~ 107 counts/s
ĄPosition: 3 channels in front of the horizontal port of P-9 sections
1 channel in front of the horizontal port of P-8 section


[Photograph]

[Reference]
(1) T. Nishitani, M. Hoek, H. Harano,G.A. Wurden, R.E. Chrien, "Triton Burnup Study in JT-60U", Plasma Phys. Control. Fusion, Vol. 38 (1996) 355.