Electron Gun Assemblies

Model 101157 Ø.134" Dispenser Cathode with Base

Optional Micro Tip #101300 Modified to include Ø0.063" emitter, #101750

Ø.134 planar cathode Thermally isolating Mo/Re support Mounting flange One heater lead internally brazed Available with spherical radius or micro tips (shown in inset, Model 101300 Ø.015" tip) Approximately 4.7V, 1.1A @ 1050°C See TB-176 for other flanged cathode sizes #107741 (#101157-05 on FE/stalk assembly)

Model 106614 40 KV Triode Gun

#106614

Ø0.250" cathode Gridded Focus electrode

Model HWEG-1079 Electron Gun Specification

Typical shipping/storage container

Optional conflat flange mount

#102592 is #101079 gun with anode
and CF flange mount

Model HWEG-1228 Electron Gun Specifications

Typical shipping/storage container

Optional conflat flange mount

Model HWEG-1304 Electron Gun Specifications

Typical shipping/storage container #104909 is #101304 electron gun, flange mounted

Optional conflat flange mount #104909

Model 101900 Mini Triode Gun

#101900

Ø0.122" cathode Spherical radius HV housing Ready to weld to system or add CF flange

Model 102819 CF Flange Mounted Electron Gun

#102819

Ø0.055" cathode Ø0.094" thru anode aperture 2 3/4" CF flange mount

Model HWEG-1280 Electron Gun Specifications

Maximum Operating Voltage 10kV Maximum Beam Current 30mA Spot Size (20mm WD) 0.5-1.0mm @ 30mA, 0.1mm @ 1mA Focus Electrostatic Grid Voltage (Modified Pierce Electrode) -1000V (max) with respect to cathode for beam cutoff Emitter Type Tungsten heated by electron bombardment (7mA @ 2kV, filament approx. 1.4A @ 4V, emission regulated) Field replaceable Emitter Life Better than 2000 hours Vacuum Requirement 1 x 10-6 Torr or better Electrical Feedthrough Ceramaseal P/N 807B12867-05-CF Flange 2.75" Diameter CFF #104563 cathode assembly for HWEG-1280 Complete specifications

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Model 101373 Ø0.250" Planar RF Gun Cathode

#101373 #102031

Ø.250" planar emitter One heater lead internally brazed Optional Ø.080" thru hole (101373-02) See APS Main Injector for details about the APS Main Injector Upgrade Project which uses this cathode. Designed for RF application #101975 #101409

Model 102244 Flange Mount Gridded Gun with Ion Trap

#102244

Ø0.550" cathode FE at flange potential Cathode, grid and heater feedthrus

Model 102353 Modular Gridded Cathode Assembly on CF Flange

#102353-02 (shown without CF flange)

Various cathode diameters (0.134" - 1.00") and grids available Modular design

Model 102818 Nickel Cathode/Grid Assembly

#102818

Ø0.172" cathode Moly grid Focus electrode at grid potential

HWEG-1227 Electron Gun Specifications

Conflat Size 3-3/8" Grid - Cathode Spacing (DGK) 160 microns (cold) Emission, typical * 18A @ Ec=100V, .0001 Duty Cathode Area 3.0 cm² (Ø .77") Cathode Heater Voltage * 6.0/7.5 V Cathode Heater Current, typ. * 8.0A @ 6.0V Cathode Type Planar Dispenser Cathode Life ** 10,000 Hours @ 8 Amps 100,000 Hours @ 1 Amp * Actual values are subject to Anode and system configurations. ** Cathode lifetimes are theoretical and under ideal conditions.

HWEG-1255 Electron Gun Specifications

Conflat Size 3-3/8" Grid - Cathode Spacing 160 Microns Emission, typical* 12A @ Ec=100V, .002 Duty Grid Power Maximum 1.5 Watts Grid Volts* Typical/Maximum 100/-150 Grid Amps* Maximum 50 mADC Grid Screening Fraction 33% Transconductance* 100-180 mmhos Cathode Area 2.0 cm² Cathode Heater Voltage 6.0/7.5 Cathode Heater Current, Typical 5.2A @ 6.0V Cathode Type Dispenser Cathode Life** 10,000 Hours @ 8 Amps 100,000 Hours @ 1 Amp * Actual values are subject to Anode and system configurations. **Cathode lifetimes are theoretical and under ideal conditions.

Model HWEG-1244 Electron Gun

101244 Gun shown is sealed in its shipping/storage container.

Conflat Size 2 3/4" Grid-Cathode Spacing (DGK) 160 microns (cold) Emission, Typical* 3A @ EC=100V Cathode Area 1.0cm² Cathode Diameter Ø0.44" Cathode Heater Voltage* 6.3V Cathode Heater Current, Typ.* 2.2A Cathode Type Dispenser Cathode Lifetime** >>10,000 Hours *Actual values are subject to anode and system configurations. **Cathode lifetimes are theoretical and under ideal conditions.

Model 102353 Electron Gun

102353 Electron Gun

Ø0.500" Planar cathode with 90% transparency grid 2 3/4" CFF flange mount 0.0064 Grid-to-cathode spacing 2 Pin feedthru for cathode/heater and heater connections Flange is at grid potential Cathode diameter and grid transparency are user selectable

102353 In Shipping Container

Model 101919 Electron Gun

101919 Electron Gun

Ø0.400" (1 cm) Planar dispenser cathode, Type 61280, with 80-85% transparency grid #102069 Customized SST DN63 "NECK" flange mount 0.0067 Grid-to-cathode spacing Convenient coaxial connections made with #102023 socket (shown in photo, below) Flange is at grid potential Cathode diameter and grid transparency are user defined

102023 Socket for 101919 Electron Gun

CPI Varian Eimac Replacement Electron Gun/Cathode Assemblies

#VA 879977 #VA E17 8234

#103078 (Y646B) with 0.5 cm2 cathode/grid

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Model 103839 Ø0.006" Tip Cathode/FE Assembly

#103839

Ø0.006" tip emitter FE common to flange mount

Model 104386 Flange Mounted Electron Gun

#104386

Uses #101079 electron gun Gas injection ports into custom ionization chamber HV potting on airside

Model 104474 Model XII Electron Gun Rebuild

#104474

Oxide-dispenser cathode conversion options Full bake out and pinch off Low voltage testing

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Model 104597 Sheet Beam Ribbon Cathode Assembly

#104597

0.040" wide x 6.0" long tungsten or graphite filament Graphite pierce electrode Auto-tension design

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Model 104911 Model 3 Electron Gun Repair or Replacement

#104911

Glass HV Isolation Full bake out and pinch off Low voltage testing

Model 105552 50KV Electron Gun

#105552 cathode/FE alone

#105282 cathode/heater Assembly Fully baked and pinched off HV plug and cable assembly included

#105552 HV isolation assembly

Model 106381 Electron Gun for Plasma/Fusion Research

#106381

Ba dispenser or LaB6 cathode/heater assembly CF flange mount with Z adjustment Gridded gun (multi-grid options) Fully baked #106381

#106381

Ion Beam Neutralization Surface Charge Control Electron Filament Replacement Electron Enhancement of Magnetron and Diode Discharges Arc Discharge Generators

Model 107586 Electron Gun and Diagnostic Tube Assembly

#107670 shown without segmented anode or helmholtz coil #107586 segmented anode

Segmented anode Full processing available Helmholtz coil included Ion pumped

#107586 closeup of segmented anode interior

Model 107872 Shaped Disc Insulator Test Module

#107872 HV socket only

Model 102645 Ø0.250" Planar Cathode/Heater Assembly with Flange Mount

#102645 cathode/heater assembly Imatron rebuildable gun assembly with ion pump

0.250" diameter Planar Cathode Flange mount Includes heat shield around cathode GE Imatron eSpeed C300 Electron Beam Tomography Bodyscan scanner electron gun compatible

Model 103122 Ø3.12" Cathode Electron Gun

#103122

Ø3.12" cathode with 1.981" SR Focus electrode Rebuilds available HV standoff included

Model 102819 12 KV Electron Gun

#102819, several on bakeout test stand

Ø0.030" cathode in FE Accelerating anode 2 3/4" CF flange mount

Model 103575 70 KV, 74A, 1.5 µ sec Pulsed Gun System

#103575

Pulsed Electron Thermal Fatigue System (PETS) Includes gun/target, modulator, control electronics, and vacuum system Plasma confinement material testing applications

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