ESRF ACCELERATORS
LINAC Ceramic Insulator on GUN
Gun Cabinet View.
In this cabinet we have the Gun Triode ( localised in the ceramic insulator ).
The Gun is the electrons source of the accelerator. It defines the pulsed characteristics of the electron beam ( duration, rate ).
The Gun Triode is a base of a thomson TH 338 triode. It is an "oxyde coated" type, heated by a 40 W tungstene filament. It is heated by a DC voltage to avoid a electron beam modulation.
To start the operation of the gun, 15 minutes are necessary for the warm-up of this cathode.
The anode is the accelerator body, at the earth potential. The gun's cathode and grid are referenced to a negative high voltage of -80 kV. Considering this, in short pulse mode, negative pulses are applied on the gun's cathode to get it conductive.
LINAC Ceramic Insulator on GUN
Gun Cabinet View.
In this cabinet we have the Gun Triode ( localised in the ceramic insulator ).
The Gun is the electrons source of the accelerator. It defines the pulsed characteristics of the electron beam ( duration, rate ).
The Gun Triode is a base of a thomson TH 338 triode. It is an "oxyde coated" type, heated by a 40 W tungstene filament. It is heated by a DC voltage to avoid a electron beam modulation.
To start the operation of the gun, 15 minutes are necessary for the warm-up of this cathode.
The anode is the accelerator body, at the earth potential. The gun's cathode and grid are referenced to a negative high voltage of -80 kV. Considering this, in short pulse mode, negative pulses are applied on the gun's cathode to get it conductive.