Hi Colin, Marin's mail included a URL that had other links, at what stage I stopped following. I was rather amused by an email about microscopy being sent to a crystallography board - or rather not amused, because the confusion of both has led to a serious deterioration of quality of publications in ED.
I do not have a problem with a phenomenon only because I don't understand it. The statistical part in QM is a matter of fact, so why call it a measurement "problem"? A crystal is a beautiful quantum calculator that modifies the probability distribution of a planar wave into a series of spots - that's so beautiful, and I don't worry if the photons or other diffracted particles do not arrive at the detector in the order I want them to arrive, as long as they do arrive ;-) Cheers, Tim On Mon, 6 Oct 2025 15:24:06 +0000 "Nave, Colin (DLSLtd,RAL,LSCI)" <[email protected]> wrote: > Sorry Tim, > I very much doubt that Marin's analysis does not apply equally to > x-ray diffraction. Apart from imaging being just equivalent to 1 unit > cell, crystallography increasingly uses photon counting detectors > which, according to Marin, will also have a direct connection to the > measurement problem. Investigating this could be like falling down a > rabbit hole. You might now have to spend sleepless nights worry about > the fundamental basis of what you have been doing since you started > your career. > > If you want to avoid this, one can just accept that the measurement > problem is similar to trying to determine which slit a particle goes > through in a 2 slit experiment. This could involve choosing one of > the many interpretations of quantum mechanics. Or you could otherwise > accept it is a central mystery and leave it at that. > > Of course, Marin might have solved this central mystery! > > Good luck > Colin > > -----Original Message----- > From: CCP4 bulletin board <[email protected]> On Behalf Of Tim > Gruene Sent: 06 October 2025 14:46 > To: [email protected] > Subject: Re: [ccp4bb] Single Electron Counting, The Measurement > Problem, Symmetric Sampling > > I am so happy I do diffraction, not microscopy Tim > > On Sat, 4 Oct 2025 19:13:10 -0300 > Marin van Heel <[email protected]> wrote: > > [...] > > > > -- > -- > Tim Gruene > Head of the Core Facility Crystal Structure Analysis Faculty of > Chemistry University of Vienna > > Phone: +43-1-4277-70202 > > https://ccsa.univie.ac.at > > GPG Key ID = A46BEE1A > > ######################################################################## > > 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/ This > e-mail and any attachments may contain confidential, copyright and or > privileged material, and are for the use of the intended addressee > only. If you are not the intended addressee or an authorised > recipient of the addressee please notify us of receipt by returning > the e-mail and do not use, copy, retain, distribute or disclose the > information in or attached to the e-mail. Any opinions expressed > within this e-mail are those of the individual and not necessarily of > Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee > that this e-mail or any attachments are free from viruses and we > cannot accept liability for any damage which you may sustain as a > result of software viruses which may be transmitted in or with the > message. Diamond Light Source Limited (company no. 4375679). > Registered in England and Wales with its registered office at Diamond > House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, > OX11 0DE, United Kingdom. -- Tim Gruene Head of the CF Crystal Structure Analysis Faculty of Chemistry University of Vienna Phone: +43-1-4277-70202 GPG Key ID = A46BEE1A ######################################################################## 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/
pgpuTWZcoZ535.pgp
Description: OpenPGP digital signature
