Denka M-3 LaB6 cathodes, FEI/Philips

SKU: MTP1451   |   Availability ⓘ

Denka M-3 LaB6 cathodes, FEI/Philips

SKU: MTP1451   |   Availability ⓘ
Tip
EM
Pack Size
AU $1,964.00 Regular price

Taxes and shipping applied at checkout.

/

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:

  • Low potential barrier (work function)
  • High melting point and stability at high temperatures
  • Low vapour pressure so as to reduce evaporation loss
  • Chemical stability

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:

  • SEM
  • TEM
  • X-ray Beam Analysis (EPMA)
  • Electron Beam Lithography

Benefits:

  • High Brightness: A LaB6 beam is 10 times brighter than tungsten, has superior resolution, and features a wide range of acceleration voltages. It provides sharp, clear pictures, down to the smallest detail. The initial brightness of a Denka Model 3 cathode (1 x 106A/cm2.Str) is substantially better than that of competing, mini-vogel type cathodes (typically 5 x 105A/cm2.Str).
  • Long Life: Heat and vacuum are the final determinants of any cathode tip?s life, but at 1550?C and a vacuum of 10-7 Torr, a service life of about 500 hours can be expected.
  • Stability: Thanks to its simple and durable construction, every Denka Model 3 LaB6 Cathode offers a stability of better than 3% per hour at 1550?C.
  • Interchangeability: Denka Model 3 LaB6 cathodes are designed as direct replacements for tungsten filaments when a vacuum in the 10-7 range is provided.

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

Technical Data

Images are illustrative only. Please check product details before ordering.

Updated: 24-11-2024
Code Tip EM Pack Size Availability* Price (ex GST)
MTP1451 Standard 90/15, round FEI Philips Each 3 weeks AU $1,964.00

* Availability Explanation

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.

REFUNDS AND RETURNS

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 INFORMATION

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

Urgent Orders:

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.

Dangerous goods:

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.
 

Shipping to New Zealand Destinations

Orders are now shipped 'receipted delivery'.

Charges:

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.

Shipping to Rest of World Destinations

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

GUARANTEE

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) 

LIABILITY

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. 

At ProSciTech, we make it easy for you to get an accurate quote for the products you're interested in. Our automatic quote generates a formal quote, including shipping, and sends it to your inbox.

If you can see the price and you are within Australia, you can generate a quote at any time.


Creating a quote:

1. Click "Log In" to sign in or create an account

This is just an online profile. It will store your address(s) and online order history. It does not store credit card details. WE DO NOT SPAM.

Click "Log In" to sign in or create an account

2. If you do not have an account, click "create account"

Accounts are just a profile, and are identified by email address, not by name or institution. 

If you do not have an account, click "create account"

3. Fill in your name, email address, choose a password, and click "Create"

Fill in your name, email address, choose a password, and click "create"

4. Go to your account

When you a logged in, your email address will show as your profile

Click on to your account to enter shipping address

5. Enter your shipping details and click "Add address"

You can store more than one shipping address.  

Enter your shipping details and click "Add address"

6. Go to the product page of the item(s) you would like quoted.

Go to the product page of the item(s) you would like quoted.

7. Click on "Add to formal quote"

Click on Add to formal quote

Repeat for any additional products


8. Go to your cart

Go to the cart

9. Check the product details and the address are correct

Check the product details and the address are correct

10. Click on your preferred shipping method

You can collect, choose regular shipping, or ship express for light orders.

Click on which method of shipping you prefer

11. Click on "Generate formal quote"

Click on Generate formal quote

If your quote has generated successfully, it will show the following message : Thank you for your quote request. You will receive your quote via email shortly.

If your quote has generated successfully, it will show the following message : Thank you for your quote request. You will receive your quote via email shortly.

Trouble Shooting

  1. You do not receive the quote
    Solution: If you received a message to say a quote has been sent, check your spam folder. If you have a very strict firewall, please email to ask the quote is sent direct.
  2. No discount applied
    Solution: Check the discount, as most discounts apply to online orders only.
  3. Incorrect freight charge (eg there is freight charged on an order over $200)
    Solution: check you are logged in and you have entered your shipping address.

For Manual Quotes:

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.