Indium wire for high vacuum seals on page V1

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Filaments and cathodes

LIGHT PIPES SEM & STEM
Quartz lightpipes with P47P scintillator are available for most instruments. Email your requirements, stating make and model of instrument and, if possible, length and diameter of pipe; straight or angled. Inquire.
JEOL STEM detectors are recoated.

TUNGSTEN SEM/TEM FILAMENTS
Kimball Physics tungsten filaments, new or rebuilt, are formed in high-precision fixtures using a special-alloy tungsten wire to minimise strain. Precise dimensions and microscopic inspection guarantee consistent quality and performance. All filaments are annealed to reduce movement during operation. For most instruments refurbished filaments are cheaper than new ones. There is no doubt about their quality: refurbished filaments' life expectancy and stability are identical to that of new ones.
Minimum order for refurbished filaments is six.

Note: Kimball can no longer buy JEOL filament bases, consequently our new JEOL filaments will be discontinued when sold. This does not affect refurbishing.

Filaments

	ARL New: M71 Rebuilt: MR71
	JEOL (k type) New: M76K Rebuilt: MR76K
	AEI/ Cambridge/ Leica/ Zeiss new models New: M72
	JEOL GC (JSM) New: M76 Rebuilt: MR76
	FEI (Philips) Loop filament New: M77L Rebuilt: MR77L
	Hitachi HU Rebuilt: MR74
	FEI (Philips) V filament New: M77V Rebuilt: MR77V. We no longer sell this, the new filaments cost the same.
	Hitachi S Rebuilt: MR74S Ask
	Siemens, Cambridge S-310 Rebuilt: MR78
	ISI (2 pin) New: M75 Rebuilt: MR75
	Zeiss older models New: M79 Rebuilt: MR79
	ISI (3 pin) New: M75S Rebuilt: MR75S
	Cameca Rebuilt: MR80

M71 New filaments for ARL SEMQ AUD657.00 /box/10 stock?
M72 New filaments for AEI/Cambridge/Leica/Zeiss new models AUD318.00 /box/10 stock?
M75 New filaments, ISI 2-pin AUD709.00 /box/10 stock?
M75S New filaments, ISI 3-pin AUD698.00 /box/10 stock?
M76K New filaments, JEOL K AUD938.00 /box/10 stock?
M77L New loop filaments, FEI (Philips) AUD509.00 /box/10 stock?
M77V New V filaments, FEI (Philips) AUD563.00 /box/10 stock?
M79 New filaments, Zeiss older models AUD895.00 /box/10 stock?
MR71 Kimball rebuilt filaments ARL AUD46.00 stock?
MR74 Kimball rebuilt filaments for Hitachi HU AUD33.00 stock?
MR74S Kimball rebuilt filaments for Hitachi S AUD36.00 stock?
MR75 Kimball rebuilt filaments for ISI 2-pin AUD43.00 stock?
MR75S Kimball rebuilt filaments for ISI 3-pin AUD43.00 stock?
MR76 Kimball rebuilt filaments, JEOL GC AUD42.00 stock?
MR76K Kimball rebuilt filaments, JEOL K AUD53.00 stock?
MR77L Kimball rebuilt loop filaments for FEI (Philips) AUD45.00 /each stock?
MR78 Kimball rebuilt filaments for Siemens AUD35.00 stock?
MR79 Kimball rebuilt filaments for Zeiss AUD35.00 stock?
MR80 Kimball rebuilt filaments for Cameca AUD43.00 stock?

FILAMENT CONTAINERS
The container's design makes a visual check of the filaments without opening the box possible. Each filament is held in place and the open box can be tipped over without damage. A filament insertion tool is provided to transfer filaments directly into the instrument without manual contact. Each box holds 10 filaments.
The box is supplied with new filaments and included in the price.
The prices below are for replacement boxes purchased when mailing in filaments for rebuilding.
If you require a box without having filaments to rebuild, please ask for a quote.

M081 Filament container, ARL AUD24.00 stock?
M082 Filament container, AEI AUD24.00 stock?
M083 Filament container, Hitachi S AUD24.00 stock?
M084 Filament container, Hitachi HU AUD24.00 stock?
M085 Filament container, ISI 2-pin AUD24.00 stock?
M086 Filament container, JEOL K AUD24.00 stock?
M087 Filament container, Philips S AUD24.00 stock?
M089 Filament container, Zeiss AUD24.00 stock?
M090 Filament container, JEOL GC AUD24.00 stock?
M091 Filament container, Philips V AUD24.00 stock?
M092 Filament container, Amray AUD24.00 stock?
M093 Filament container, ISI 3-pin AUD24.00 stock?

P47P SCINTILLATOR DISCS
Coated with a uniform layer of carefully selected P47P (Y₁Si₂O₇:Ce³) phosphor with high signal output and excellent working life. Normally they are not coated with aluminium unless cathodoluminescence applications are anticipated. The aluminium coating reduces efficiency by approximately 20%. Not recommended where light leakage, vacuum sealing or back-streaming may be a problem. For magnifications < 100,000X.
Listed P47P scintillators usually are ex-stock, others are available on indent. The thickness of these discs is 1mm; greater thickness of original discs is immaterial to performance -use the thinner disk if it physically fits.

YAG SCINTILLATOR DISCS
Very low noise

• High resistance to radiation damage
• Long working life.

YAG (Yttrium Aluminium Garnet activated by Ce³⁺) has a very fast response time of 50-60ns. They withstand the bombardment by electrons or ions far better than plastic or phosphor scintillators. Light emission peaks at about 560nm which means that S20 photocathodes are most suitable for detecting the emission. YAG is also suited for high current operations. The response is better than for the P-47 discs below 5kV and again at high accelerating voltages, where the performance of powder scintillators fall off while the response of the YAG continues to increase linearly.

YAP SCINTILLATOR DISCS
YAP (Yttrium Aluminium Perovskite activated by Ce³⁺) shares the same advantages as YAG but is more efficient in terms of light output. As well, the emission spectrum peaks at about 378nm, and this corresponds closely to the maximum sensitivity of the S11 photocathode which in general is used in most scanning electron microscopes. (There would be more improvement in signal by using a YAP crystal rather than YAG in these microscopes). The decay time of YAP (40ns) is faster than YAG (80ns) so its overall performance is superior to YAG. YAP crystals should be coated with 50nm of aluminium prior to use.

YAG and YAP scintillators are made on order, approximately six weeks delivery is required.
MP75 P-47 scintillator for ISI, 7.7mm AUD127.00 stock?
MP10 P-47 scintillator for Cambridge, 10mm AUD137.00 stock?
MP12 P-47 scintillator for Cambridge, 12.5mm AUD109.00 stock?
MP135 P-47 scintillator for ISI, 13.5mm AUD177.00 stock?
MP166 P-47 scintillator for Novascan, 16.6mm AUD136.00 stock?
MP18 P-47 scintillator for Camscan III, 18mm AUD136.00 stock?
MP19 P-47 scintillator for JEOL, 19mm AUD106.00 stock?
MP198 P-47 scintillator for Hitachi STEM, 19.8mm w/ring AUD210.00 stock?
MP20 P-47 scintillator for JEOL/Hitachi, 20mm AUD144.00 stock?
MP20X2 P-47 scintillator for Philips SEM, 20mm x 2mm AUD152.00 stock?
MP89 P-47 scintillator for JEOL, 8.8mm AUD99.00 stock?

LANTHANUM HEXABORIDE CATHODES
The large gain in brightness and long operating life of Lanthanum Hexaboride cathodes are well known. Kimball Physics' LaB₆cathodes are at least equal in these respects to other cathodes and they also offer a price advantage.
Additionally, Kimball designed their cathodes with a much larger crystal and a one-piece base. The result is greater robustness and much improved life when the operating conditions are less than optimal, such as a vacuum of not quite the desirable 10^-8 torr. Lesser vacua result in a contamination layer on the crystal. Overheating the cathode will remove this, but frequently leads to early failure of the Vogel mount design employed by other LaB₆cathode manufacturers. Accidental overheating of the cathode is much better tolerated by Kimball's design.
We recommend Kimball LaB₆cathodes for all electron beam instruments equipped with ion getter or turbo molecular pumps and nitrogen backfill of the column.

Advantages are:

• Greater brightness that is available results in higher resolution, better EDS count rates in high power TEM and much greater uninterrupted operating life.
  
• For low power work where high brightness is less important, cathode life can be over 5000 hours. Even with less than ideal vacua, cathode life of more than 1000 hours is expected.
• Beam current stability is superb. This makes LaB₆ cathodes suitable for quantitative microanalyses, provided the instrument has a suitable vacuum system.
  In summary: Kimball's LaB₆ cathodes are less risky to operate; their lower cost and long operating life yield savings in cathodes, instrument downtime and operator's time. If your instrument is suitable, then these better performing LaB₆cathodes are more economical to use for routine operation than standard tungsten filaments.
  
• The angle of the cone makes very little difference to LaB₆ performance. All cathodes except for those with very small micro flats are supplied with a 90-degree cone. The top of the cone is machined to provide a micro flat.
  
• Micro Flats: Larger flats provide a larger illuminated area and greater longer-term beam stability, as is required for microprobes, but less brightness. Conversely, smaller micro flats result in greater brightness with a smaller illuminated area at given settings compared to larger micro flats. Cathodes with 15 square micrometer flats are most commonly sold to users who routinely need high magnifications. The 20 square micrometer flats are excellent for labs working mostly on sectioned specimens; they are a compromise that offers the LaB₆ long cathode life and gives some additional brightness over W filaments. 40 square micrometer flats are available, but at considerably greater cost. At the other end of the scale we can provide a 60-6, which is especially suitable for constant very high-resolution work, these cost only ~AUD50 more than standard cathodes.

Please request a quotation for special cones/flats. Specials are generally on 5 weeks delivery.

Kimball Physics have extensive information on the use, optimisation and vacuum dump recovery of these cathodes. All of this available online at http://www.kimphys.com/
ProSciTech also supplies any other Kimball products, including tantalum disc and Thorium oxide emitters.

To order, indicate make and model of instrument. The size of the normally supplied microflat is 15 square micrometers
E.g.: LaB₆ Cathode 90-15 for Cambridge S-410

M671 LaB6 cathode for ARL AUD985.00 stock?
M672 LaB6 AEI/Cambridge/Leica 90-15 AUD985.00 stock?
M67220 LaB6 AEI/Cambridge/Leica 90-20 AUD985.00 stock?
M674 LaB6 cathode for Hitachi AUD985.00 stock?
M675 LaB6 cathode for ISI AUD985.00 stock?
M676 LaB6 JEOL 90-15 AUD985.00 stock?
M67606 LaB6 cathode 60-06 on JEOL K base AUD1,035.00 stock?
M67620 LaB6 JEOL 90-20 AUD985.00 stock?
M677 LaB6 Philips 90-15 AUD985.00 stock?
M67720 LaB6 Philips 90-20 AUD985.00 stock?
M679 LaB6 cathode for Zeiss AUD985.00 stock?
M679040 LaB6 AEI/Cambridge/Leica 90-40 AUD1,288.00 stock?
M680 LaB6 cathode for Cameca AUD985.00 stock?

BARIUM OXIDE CATHODES
These are used for non-EM purposes and ProSciTech will import these on request.
These cathodes are on an AEI ceramic base. This cathode is also available with molybdenum pin - ask for the price of that special version. Delivery of these cathodes is about three weeks.
M800 Barium oxide cathode AUD288.00 stock?