Modeling of neutron emission spectroscopy in JET discharges with fast tritons from (T)D ion cyclotron heating

2006 ◽  
Vol 77 (12) ◽  
pp. 126107 ◽  
Author(s):  
M. Tardocchi ◽  
G. Gorini ◽  
E. Andersson Sundén ◽  
S. Conroy ◽  
G. Ericsson ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission ◽  
Ion Cyclotron

Time resolved neutron emission spectroscopy of DT plasmas with ion cyclotron resonance heating

2001 ◽  
Vol 72 (1) ◽  
pp. 836-840 ◽  
Author(s):  
M. Tardocchi ◽  
L. Ballabio ◽  
S. Conroy ◽  
G. Ericsson ◽  
G. Gorini ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Emission Spectroscopy ◽  
Neutron Emission ◽  
Ion Cyclotron Resonance ◽  
Time Resolved ◽  
Ion Cyclotron

Neutron emission spectroscopy at JET—Results from the magnetic proton recoil spectrometer (invited)

2001 ◽  
Vol 72 (1) ◽  
pp. 759-766 ◽  
Author(s):  
Göran Ericsson ◽  
L. Ballabio ◽  
S. Conroy ◽  
J. Frenje ◽  
H. Henriksson ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission ◽  
Proton Recoil

New MPRu instrument for neutron emission spectroscopy at JET

2006 ◽  
Vol 77 (10) ◽  
pp. 10E717 ◽  
Author(s):  
H. Sjöstrand ◽  
L. Giacomelli ◽  
E. Andersson Sundén ◽  
S. Conroy ◽  
G. Ericsson ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission

Synergetic RF and NB heating effects in JET DT plasmas studied with neutron emission spectroscopy

2006 ◽  
Vol 46 (2) ◽  
pp. 244-253 ◽  
Author(s):  
H Henriksson ◽  
S Conroy ◽  
G Ericsson ◽  
G Gorini ◽  
A Hjalmarsson ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission ◽  
Heating Effects

Neutron emission generated by fast deuterons accelerated with ion cyclotron heating at JET

2010 ◽  
Vol 50 (2) ◽  
pp. 022001 ◽  
Author(s):  
C. Hellesen ◽  
M. Gatu Johnson ◽  
E. Anderson Sundén ◽  
S. Conroy ◽  
G. Ericsson ◽  
...  
Keyword(s):  
Neutron Emission ◽  
Ion Cyclotron

scholarly journals Forward modeling of pile-up events in liquid scintillator detectors for neutron emission spectroscopy

2021 ◽  
Vol 92 (8) ◽  
pp. 083502
Author(s):  
A. Sahlberg ◽  
J. Eriksson ◽  
S. Conroy ◽  
G. Ericsson ◽  
L. Hägg ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission ◽  
Liquid Scintillator ◽  
Forward Modeling ◽  
Pile Up ◽  
Scintillator Detectors

scholarly journals Study of ion cyclotron range of frequencies heating characteristics in deuterium plasma in the Large Helical Device

2021 ◽  
Vol 62 (1) ◽  
pp. 016004
Author(s):  
S. Kamio ◽  
K. Saito ◽  
R. Seki ◽  
H. Kasahara ◽  
M. Kanda ◽  
...  
Keyword(s):  
Simple Model ◽  
Emission Rate ◽  
Neutron Emission ◽  
Model Simulation ◽  
Second Harmonic ◽  
Hydrogen Ion ◽  
Deuterium Plasma ◽  
Ion Heating ◽  
Heating Efficiency ◽  
Ion Cyclotron

Abstract The characteristics of ion cyclotron range of frequencies (ICRF) minority ion heating with a hydrogen minority and deuterium majority plasma were studied by ICRF modulation injection experiments in the Large Helical Device (LHD). In recent experiments with deuterium plasma, no significant increase in the neutron emission rate due to ICRF second harmonic deuteron heating was observed. Therefore, in this study, the neutron emission rate was used to refer to the information regarding the thermal ion component. Like the results of the observations of the heating efficiencies at various minority proton ratios, the experimental results showed good agreement with the simple model simulation of ICRF wave absorption. During these experiments, the accelerated minority hydrogen ions were observed by neutral particle analyzers. The counting rates of the energetic particles were higher in the lines of sight passing through the helical ripple than across the magnetic axis, and the counting rate decreased as the minority hydrogen ion ratio increased. The dependence of the minority hydrogen ion ratio on the density of the energetic ions was consistent with the experimentally observed heating efficiencies and simulations. The heating efficiency of ICRF minority ion heating could be well explained by simple model simulation in the LHD deuterium experiment.

scholarly journals Initial Result of Neutron Emission Rate Analysis for Ion Cyclotron Range of Frequency Heated Deuterium Plasmas in LHD

2020 ◽  
Vol 15 (0) ◽  
pp. 1202088-1202088
Author(s):  
Ryosuke SEKI ◽  
Shuji KAMIO ◽  
Hiroshi KASAHARA ◽  
Kenji SAITO ◽  
Tetsuo SEKI ◽  
...  
Keyword(s):  
Emission Rate ◽  
Neutron Emission ◽  
Initial Result ◽  
Rate Analysis ◽  
Ion Cyclotron

Validating TRANSP simulations using neutron emission spectroscopy with dual sight lines

2008 ◽  
Vol 79 (10) ◽  
pp. 10E510 ◽  
Author(s):  
C. Hellesen ◽  
E. A. Sundén ◽  
S. Conroy ◽  
G. Ericsson ◽  
L. Giacomelli ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Neutron Emission
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