I tend to like considering below 10microns as a micro-focus, below the micron as a sub-micron beamline. I don't know if any nano-focus, sort to say. XFELs are dealing with 100 nm, without the wings, which is really sub-micron to me.
Regards, Leo
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Leonard Chavas
-
Synchrotron SOLEIL
PROXIMA-1
L'Orme des Merisiers
Saint-Aubin - BP 48
91192 Gif-sur-Yvette Cedex
France
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Phone : +33 169 359 746
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> On 27 Jun 2020, at 14:35, John R Helliwell <[log in to unmask]> wrote:
>
> Hi,
> At the ISDSB 2019 in Osaka last November I asked Stephen Burley about the BioSync pages, commending how useful they are. Stephen said they had asked for a budget line in their last renewal to help keep the pages up to date but it had been cut. At the next renewal, or earlier, we should write our Letters of Support for the BioSync pages.
> Best wishes,
> John
> Emeritus Professor John R Helliwell DSc
>
>
>
>
>> On 27 Jun 2020, at 10:41, Rasmus Fogh <[log in to unmask]> wrote:
>>
>> Dear All,
>>
>> The link http://biosync.rcsb.org/index.jsp looked very interesting, but a cursory look found the following line in a beamline description:
>>
>> "Next proposal submission period Mid 2013"
>>
>> Not 100% up to date, then.
>>
>> Yours,
>> Rasmus
>>
>>> On 25/06/2020 09:36, Andrew Leslie wrote:
>>> Dear Morpholino,
>>> I think 10 microns or under is a reasonable way to define a micro focus beam line. There is a list of all MX beamlines at the following web site:
>>> http://biosync.rcsb.org/index.jsp
>>> This gives details of each beam line, including beam size, but you would have to go through them all to find the actual number. Also I’m not totally sure how often this is updated.
>>> Best wishes,
>>> Andrew
>>>>> On 24 Jun 2020, at 23:23, Murpholino Peligro <[log in to unmask] <mailto:[log in to unmask]>> wrote:
>>>>
>>>> That's a good point...
>>>> I was thinking that a decent crystal has a size in the hundreds of micrometers (say 100 in a, b and c). So, with such a specimen we can use any MX beamline.
>>>> But if the crystal is smaller (say 10 micrometers in a, b and c) You must use a microfocus beamline.
>>>> *Please correct me if I am wrong.*
>>>> So what are the number of MX beamlines that can get useful data from smaller crystals (as defined above)?....
>>>>
>>>> Thanks again
>>>>
>>>> El mié., 24 de jun. de 2020 a la(s) 13:02, James Holton ([log in to unmask] <mailto:[log in to unmask]>) escribió:
>>>>
>>>> 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.
>>>>>
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>>
>> --
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