Current Be Tracker Link :

PLEASE UPDATE THIS LINK EVERY Be LENS CAHNGE!

https://docs.google.com/spreadsheets/d/1PgHBq5lFiNbtRGSTreYxzELsoz0T-8oFc-lSRuC0iQc/edit#gid=1980115209

Cleaning

If you drop a lens or somehow handle in a non-UHV compatible way, please contact Kelsey to clean OR clean yourself. The following standard was provided by RXOPTICS (the lens makers) for different scenarios.

METHOD: put lenses in clean vessel with fresh acetone. Let them sit for NO LONGER THAN 10 seconds in the acetone

1. Never touch them to water, this will cause pitting in the Be lens rendering it useless to us
2. If you note particles/dust, use clean+dry air and blow it of
3. It is possible to bake particulate matter onto the lenses with X-rays

Important Notes

*****In the process of creating a clean, dry storage for the lenses*****

Make sure you are aware of the hazards of solid beryllium. This is the RXOPTICS provided SDS for beryllium. Reference it when necessary (i.e. if you want to clean a lens made dirty).

This is to post any information that others should know. Please edit information as the information's relevancy changes and leave your name and date on the note that you made.

• Sebastien Boutet has two orders of lenses coming in the near future. (Adam White)

Serialization

We are in the process of inventorying them and getting them serialized. We have a majority of lenses serialized. They have a three digit number not associated with "R" or "D" values either etched on before or after these values.

What make a lens unique is the "R" and the three digit number.

Example "001 R=100um D=..." is different from "001 R=50um D=..."

Current serialization:

                                 Be 2D Lenses

                Cu Pinholes

Some Background Info and Sources

RXOPTICS has some good information regarding the attenuation, dimensions, and photon absorption of Be Al and Ni lenses here:

https://www.rxoptics.de/products/lenses/

Outdated Be Tracker Link (Do Not Update):

The below links are copies of the tracker that are out of date and are here to preserve the numbers from the past.

• (12/4/2020 AdamWhite)
  • https://docs.google.com/spreadsheets/d/1nuoSlwSLH1ZC-WDjm_hmNz-QhtP2X8yTGVOxtmzdkhI/edit#gid=1980115209
• 08/31/2021 David Amaton)
  • https://docs.google.com/spreadsheets/d/1tBBO64tHgTkcAHsSfbqOwTTTlexeMB5GVQKB-t6ZJXg/edit#gid=1980115209