Subject: Re: [ccp4bb] How small is a microbeam?
Hi Jon,
You can indeed get data with 1 micron(ish) beam. See for example
http://journals.iucr.org/d/issues/2008/02/00/wd5082/index.html
Different question is whether there is any benefit in using micron
size
beam. It is subject of much work
AM
*To:* CCP4BB@JISCMAIL.AC.UK mailto:CCP4BB@JISCMAIL.AC.UK
*Subject:* Re: [ccp4bb] How small is a microbeam?
On Apr 22, 2009, at 1:03, Thomas Earnest wrote:
The other use for these ultra-small beams is to illuminate part of a
larger xtal to find the best diffracting (or leat mosaic
According to the Undisputed Source of All Human Knowledge (wikipedia):
Micro is an English prefix of Greek origin that refers to an object as
being smaller than an object or scale of focus, in contrast with macro.
So perhaps smaller than the regular beam really is the best definition
of
Just an interesting question of semantics that annoyingly comes up
from time to time when people are comparing x-ray beam diameters.
What counts as microbeam?
Of course micro has the precise meaning in SI as being a factor of
10^-6.
The problem is that the prefix micro just means extremely
@JISCMAIL.AC.UK
Subject: [ccp4bb] How small is a microbeam?
Just an interesting question of semantics that annoyingly comes up
from time to time when people are comparing x-ray beam diameters.
What counts as microbeam?
Of course micro has the precise meaning in SI as being a factor
Sanishvili, Ruslan wrote:
.. Reasons for discriminating
5-10 micron beams (minibeam) from ca 1 micron (microbeam) might have
been not so much their size but what it involved to achieve these sizes.
Might I ask - do you really get data from 1 micron protein crystals? The
reduction in
21, 2009 3:36 PM
To: Sanishvili, Ruslan
Cc: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] How small is a microbeam?
Sanishvili, Ruslan wrote:
.. Reasons for discriminating
5-10 micron beams (minibeam) from ca 1 micron (microbeam) might have
been not so much their size but what it involved
Of
Sanishvili, Ruslan
Sent: 21 April 2009 22:21
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] How small is a microbeam?
Hi Jon,
You can indeed get data with 1 micron(ish) beam. See for example
http://journals.iucr.org/d/issues/2008/02/00/wd5082/index.html
Different question is whether
: Nave, C (Colin) [mailto:colin.n...@diamond.ac.uk]
Sent: Tuesday, April 21, 2009 4:44 PM
To: Sanishvili, Ruslan; CCP4BB@JISCMAIL.AC.UK
Subject: RE: [ccp4bb] How small is a microbeam?
Hi
Yes good data with a micron size beam but, in this case, the path length
was 20- 30 micron.
I presume one would
: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of
Sanishvili, Ruslan
Sent: 21 April 2009 22:21
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] How small is a microbeam?
Hi Jon,
You can indeed get data with 1 micron(ish) beam. See for example
http://journals.iucr.org/d/issues/2008/02
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