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Emitters (Cathodes / Filaments):  PART NUMBER / PRICE TABLES

 

LaB6 Cathode on AEI base

 

LaB6  ES-423 cathode mounted on a standard AEI base

Several types of cathodes for use in general vacuum physics research are available directly from Kimball Physics. These cathodes can be mounted on a standard ceramic AEI base (with Kovar pins), mounted on a Kimball Physics ceramic compact base (CB-104 or CB-105), or mounted on a customer-supplied ceramic base (tooling charge may apply).  AEI bases with molybdenum pins or special ground bases are available for an additional charge.

User-replaceable firing units containing the appropriate cathode or ion source are available for all mounted Kimball Physics units (when ordering, specify by electron or ion gun model and any special options such as high current or small spot).

High brightness single-crystal lanthanum hexaboride (LaB6) cathodes and Tungsten (W) filaments are available on various bases for use in most electron microscopes.  See SEM/TEM cathodes table below .

Prices / specifications subject to change without notice.
It is not necessarily possible to achieve all maximum specifications simultaneously. 

Click on a picture for a larger view.
Click on an underlined emitter type for its PDF specification pages.

 

EMITTERS for SURFACE PHYSICS INSTRUMENTS

POR=Price on request

 

EMITTER TYPE
DESCRIPTION
MODEL #
(style)
SIZE
PRICE
LANTHANUM HEXABORIDE (LaB6) 
for Surface Physics Applications:
FEL/ Accelerator/ X-ray

Single crystal with various microflat
diameters
High current, High brightness single crystal;
up to 30A/cm2, Large emission surfaces,
Long lifetimes, 10-7torr,
Custom sizes available,
AEI or Custom mounting

ES-423E

  Style 90-XX

Crystal with 90ocone,

microflat size depends on column design: < 100µm dia

$820
 

ES-423E

  Style 90-XXX

Crystal with 90ocone, microflat size depends on column design: 100µm to 280µm 945

 

ES-423E
  Style 90-300
Crystal with 90ocone, 300µm dia 1045

ES-423E
  Style 180-330

Flat crystal, 330µm dia, extends above ferrule 1045
ES-440 Flat crystal, 1.78mm dia 1,520
TANTALUM (Ta) DISC
General purpose planar disc cathode;
0.05-1.0 A/cm2, 10-5torr,
Emission up to tens of mAs, Two larger disc sizes for higher currents

ES-042

0.033" dia disc

98
ES-044 0.048" dia disc 178
ES-046 0.062" dia disc moly pins 258
BARIUM OXIDE (BaO) DISC
Low light, Low temperature;
0.25A/cm2, 10-7 torr, Emission up to 3mA, Two larger disc sizes for higher currents

ES-015

0.033" dia disc

196
ES-064 0.048" dia disc 276
ES-066 0.062" dia disc moly pins 356
YTTRIA COATED (Y2O3) DISC
Chemically resistant for poorer vacuum;
10-4 torr, Low work function,
Disc 2.5A/cm2, Disc emission up to 10mA,
Hairpin 4A/cm2, Hairpin emission up to 1mA
Three larger disc sizes for higher currents
ES-525 0.033" dia disc 250
ES-526 0.048" dia disc 330
ES-529 0.062" dia disc moly pins 410
NOTE: Prices quoted above are for emitters on AEI ceramic bases with Kovar pins.
           Moly pins where noted are standard.
For Kimball Physics ceramic base
(CB-104 or CB-105)
Add  $30
For molybdenum pins
(non-magnetic applications)

Add   $45

  

EMITTERS for ELECTRON MICROSCOPY

In the USA or North America, individual customers please call our retail distributor Barry Scientific at 1-800-348-2257 for further information and prices on new or replacement cathodes. Overseas customers please see List of Agents or contact Kimball Physics directly. 
OEM customers or overseas customers may order directly from Kimball Physics.

POR=Price on request

EMITTER TYPE
DESCRIPTION
MODEL #
(style)
SIZE
PRICE
LANTHANUM HEXABORIDE (LaB6)
for Microscopy

Small spot, High brightness,
10-7torr recommended, Crystal with microflat,
Ceramic AEI or various microscope bases below

ES-423E

Crystal with various angles and microflats available

$720
 
ES-423E
  style 90-15
90ocone, 15 micron microflat 720
ES-423E
  style 90-20
90ocone, 20 micron microflat 720
ES-423E
  style 60-06
60ocone, 6 micron microflat 745
TUNGSTEN (W) FILAMENT
for Microscopy

General purpose / microscopy, 0.05-1.0A/cm2, Emission from tip up to 50µA, Sold in boxes of ten,

Glass AEI or various microscope bases below

ES-020 (10)
Box of 10

Hairpin filament
AEI glass base

173.50
 

 

LaB6 CATHODES
for use with the following SEM/TEM  instruments / manufacturers
TUNGSTEN (W) FILAMENTS
for use with the following SEM/TEM instruments / manufacturers

MODEL ES-423

PART NUMBER
+(## - ##) =
cone angle & microflat dia
BASE STYLE
C423E AEI
A423E Amray
B423E BioRad - AEI
C423E Cameca - AEI
C423E Camscan - AEI
C423E Electroscan - AEI
E423E ETEC
HL423E Hitachi HU
H423E Hitachi S
AK423E ISI 002B
I423E ISI 2pin
JE423E JEOL  E
JG423E JEOL GC (JSM)
JP423E JEOL Jamp10
J423E JEOL K
C423E Leica - AEI
O423E Noran
E423E Perkin Elmer/ETEC
P423E Philips
S423E Siemens
SE423E Siemens-Elmiskop
G423E VG
G423E VG - AEI (replacement)
Z423E Zeiss  
     
New Cathodes- Sold individually. Please specify cone angle and microflat size, as well as base model above. (No Rebuilds.)
PART NUMBER
+R=rebuild
+(10)=box of ten
+ML=modified loop
BASE STYLE
ES-020 AEI
ES-039 AEI  (0.080" pin)
ES-021/ML Amray
ES-022 R Amray 1200  (rebuild only)
ES-030/004/ML ARL (0.004" wire)
ES-030/005/ML ARL (0.005" wire)
ES-034 R Cameca  (rebuild only)
ES-032 ETEC
ES-024 Hitachi HU
ES-038 Hitachi HU II (disc)
ES-037 Hitachi ring
ES-023 Hitachi S
ES-036 ISI 002B
ES-025 ISI 2pin
ES-031 ISI 3pin
ES-027 JEOL GC (JSM)
ES-026 JEOL K
ES-020 Leica - AEI
ES-018 R MAC Microprobe  (rebuild only)
ES-019 R Noran
ES-028 Philips S loop
ES-033 Philips V loop
ES-035 R RCA  (rebuild only)
ES-022 R Siemens A 1200  (rebuild only)
ES-029/ML Zeiss

New Filaments- Sold in boxes of 10 each.

Rebuild (specify R)- Priced individually. Most filament types accepted for rebuilding as long as the bases provided are in good condition.
Rebuild includes:  Reconditioning of the base
                           Mounting and centering of new filament tip
                           Vacuum annealing
                           Microscopic inspection

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