Letter Report on 500 nA Pulsed Current from Field Ionization Source

Ellsworth, Jennifer L.¹ 

[1]Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

关键词: NANO AMP BEAM CURRENTS;    IRIDIUM;    PULSES;    IONIZATION;    NEUTRON GENERATORS;    ELECTRIC POTENTIAL;    ION SOURCES;    ELECTRODES;    PRESSURE DEPENDENCE;    YIELDS;   

DOI  :  10.2172/1248264
RP-ID  :  LLNL--TR-647695
PID  :  OSTI ID: 1248264
Others  :  TRN: US1601261

学科分类：物理（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

We recently produced a milestone 500 nA of pulsed current using 40 Ir field ionizer electrodes in our ion source. In conclusion, we have produced the milestone pulsed current of 500 nA using 40 electrochemically etched iridium tips in a field ionization source. The pulsed current output is repeatable and scales as expected with gas fill pressure and bias voltage. We expect these current will be sufficient to produce neutral yields of 1???10⁷ DT n/s.