I agree with Phil. We did not consider sources to be "micro-focus" until we hit 70 microns or so in projection, circa 1999 for rotating anodes and a bit earlier for sealed tube sources.
It was Uli Arndt's paper, Focusing optics for laboratory sources in X-ray crystallography, J. Appl. Cryst. (1990). 23, 161-168, that set the stage for micro-focus sources in the home laboratory. Joe Ferrara From: CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> On Behalf Of Jeffrey, Philip D. Sent: Wednesday, June 24, 2020 1:20 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [EXTERNAL] Re: [ccp4bb] How many microfocus beamlines are in the world? I'm fairly sure that the 300-ish micron focus on my old (and retired) Rigaku RuH3R home system - a perfectly good workhorse - was consider micro-focus by precisely nobody. Phil Jeffrey Princeton ________________________________ From: CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK>> on behalf of Gianluca Santoni <gianluca.sant...@esrf.fr<mailto:gianluca.sant...@esrf.fr>> Sent: Wednesday, June 24, 2020 2:06 PM To: CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK> <CCP4BB@JISCMAIL.AC.UK<mailto:CCP4BB@JISCMAIL.AC.UK>> Subject: Re: [ccp4bb] How many microfocus beamlines are in the world? Since we commonly consider nanofocus a beamline that can go below 1 micron, I would say anything below 1mm for the sake of uniformity. On June 24, 2020 8:02:10 PM GMT+02:00, James Holton <jmhol...@lbl.gov<mailto:jmhol...@lbl.gov>> wrote: Define "micro focus" ? -James Holton MAD Scientist On 6/24/2020 9:18 AM, Murpholino Peligro wrote: I would like to know how many MX beamlines are micro focus? Thanks. ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ________________________________ To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 This message was issued to members of www.jiscmail.ac.uk/CCP4BB, a mailing list hosted by www.jiscmail.ac.uk, terms & conditions are available at https://www.jiscmail.ac.uk/policyandsecurity/
