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The use of an electron beam enables not only observation of the submicron world (TEM’s SEM’s and X-ray microanalysers) but also processing with submicron precision (electron beam lithography systems). The optimum cathode material for use in these instruments would possess the following properties:
The relative drawbacks of tungsten cathodes are a work function of 4.7eV, insufficient beam current, and a short service life. LaB6 has a work function of 2.66eV – thus more easily emitting electrons – and is a relatively stable material, so it has been increasingly used as a material for cathodes instead of tungsten. Using LaB6 cathodes with TEMs and SEMs, even with the electron beam narrowed down, it is possible to obtain enough beam current to achieve better resolution and clear micrographs with less noise. The principle advantage, however, is that LaB6 can be used in a stable condition for a much longer time. Denka manufactures the purest, highest quality LaB6 crystals for use in their cathode tips.
Applications:
Benefits:
Specifications:
Denka M-3 LaB6 Cathode for FEI, Philips Instruments (Except XL-30). Denka M-3 LaB6, Filament, PH2/90-15, standard tip.
Kimball Physics have extensive information on the use, optimisation and vacuum dump recovery of these cathodes. 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
Images are illustrative only. Please check product details before ordering.
| Code | Tip | EM | Pack Size | Availability* | Price (ex GST) | |
|---|---|---|---|---|---|---|
| MTP1451 | Standard 90/15, round | FEI Philips | Each | 3 weeks | AU $1,964.00 |
X weeks – the estimated lead time, based on the average time taken previously to fill orders from this particular supplier. Lead times are from when we receive your order until when we fill your order. For delivery times, please see shipping information below.
In Stock – Plenty of stock on the shelf, ready to ship.
No ETA – our supplier has advised they cannot provide an accurate ETA. Generally there is some issue with supply, and it may be more than 6 months.
Please ask prior to returning any goods.
Defective products should be returned to us for replacement or credit. It is best to contact support with as much detail as possible, including pictures, so we can quickly resolve the issue. ProSciTech Pty Ltd complies with the ACCC guidelines, available here: https://www.accc.gov.au/consumers/consumer-rights-guarantees/repair-replace-refund
If you decide the item purchased does not suit your requirements, you may contact us to see if a return is possible. Some items may not be refunded, so please ask before purchase if you think a return may be necessary. The greater of $15 or 15% re-stocking charge will be levied on materials returned due to an error on the part of the customer. We try to keep this charge minimal, however returns do have a cost to us.
Shipping and Handling charges are $20 for Australian orders; free for orders over $200.
In-stock items are generally sent same day. Orders are shipped shipped from Townsville, Queensland. Our couriers pick up from 2:30pm, so please place your order in plenty of time for processing and packing if you would like it sent same day. When items are not in stock, your order may be part-shipped. Items on back-order will be sent as soon as they become available.
ProSciTech will choose the courier for your order with consideration for the destination, value of parcel, weight and perishability of contents. It is our concern that our shipments reach you, our customer, rapidly and in good condition. Please contact us if you have any issues with a shipment and we will do our best to resolve it. Please keep in mind however, that our legal responsibility ends when goods are passed to the carrier.
| Order Value | Shipping and Handling charges |
|---|---|
| Greater than $200 - (exceptionally heavy or Dangerous Goods excluded). | Free |
| Less than $200 | $20 |
| Express shipping | $30 |
Delivery times:
Check your email for tracking details provided at time of shipping for updates of your parcel. We cannot guarantee delivery times, as this is outside of our control. The following are the delivery estimates as given by our couriers.
| Regular shipping | |
|---|---|
| Queensland | 1-3 business days |
| Sydney | 2-5 business days |
|
Melbourne, Adelaide, Hobart or Canberra |
3-10 business days |
|
WA, NT and non-metro areas |
4-10 business days |
| Express shipping | |
| Australia wide | 1-2 business days |
Please request "Express" if you would like us to upgrade your shipment to express delivery. Providing your order fits in a satchel and/or is under 1kg in weight, we will ship your order either DHL, TNT or Express Post. Larger or heavy orders need a quotation for additional freight costs.
See the table on the page for DG shipment costs by road. Please specify when ordering if you require air service (this can be prohibitively expensive). Please request a quotation. We will charge at cost.
Orders are now shipped 'receipted delivery'.
| Order Value | Shipping and Handling charges |
|---|---|
| Greater than $200 - (exceptionally heavy or Dangerous Goods excluded). | Free |
| Less than $200 | $26 Minimum Charge |
Heavy items (e.g. benchroll or large quantities of microscope slides) may require an additional freight charge - please ask for a quote.
DANGEROUS GOODS shipped to New Zealand: Dangerous goods will be air-freighted and the freight charge billed at cost. Typically, this will be about AUD $600AUD to New Zealand (Up to 2kg).
Delivery times: by air with signature on delivery, depending on courier, delivery can take 3-14 working days. Customs delays are unpredictable and can extend the delivery. Due to COVID19 delivery times have been extended through the couriers and are out of our control.
Contact us for a quote for shipping.
Delivery times: by air with signature on delivery, depending on courier, delivery can be 7-21 working days. Customs delays are unpredictable and can extend the delivery time. Due to COVID19 delivery times have been extended through the couriers and are out of our control.
DANGEROUS GOODS shipped outside Australia: Not available
All products are guaranteed as advertised. Defective products should be returned to us for replacement or credit. Please contact us prior to returning goods.
We endeavour to provide accurate descriptions, illustrations, prices and stock availability, but errors and omissions are possible. All quotations are E&OE (Errors and Omissions Excepted)
All products are intended for laboratory applications only and the user assumes all responsibility involved in use and handling. We accept no liability for loss or damage resulting from the use or abuse of our products.
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Accounts are just a profile, and are identified by email address, not by name or institution.
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You can store more than one shipping address.
You can collect, choose regular shipping, or ship express for light orders.
In some cases, a manual quote may be necessary. This could be if the product doesn't have a price listed online, if you're located outside of Australia, or if your total order will exceed $1000.
To request a manual quote, simply click the "Request Quote" button and submit a support ticket with your shipping address and phone number. Alternatively, you can email us directly at support@proscitech.com. Our team will review your request and send you a quote as soon as possible, generally 1-2 days.
