Our most common problem is
an incorrect beam center. The crystal we collect most frequently
has large cell dimensions, so if the beam center is off even a bit
it will bollix up the indexing. What we usually do at the
synchrotron is look for a refined beam cente
If you have tried all of the other things suggested by others (especially
beam-center and direction of rotation), you can try the keyword 'weak level' in
indexing box (see page 29 on HKL manual
http://hkl-xray.com/sites/default/files/manual_online.pdf or
http://www.hkl-xray.com/denzo-keywords-
: {alig,1} {180} as
> opposed to 0.
>
> -Todd
>
>
>
> -Original Message-
> From: CCP4 bulletin board on behalf of Jacob Keller
> Sent: Tue 2/21/2012 9:54 AM
> To: CCP4BB@JISCMAIL.AC.UK
> Subject: Re: [ccp4bb] HKL2000 indexing problem
>
> Is the di
board on behalf of Jacob Keller
Sent: Tue 2/21/2012 9:54 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] HKL2000 indexing problem
Is the direction of rotation correct? I got some data that were going
the wrong way once.
JPK
This email was scanned with Mcafee's Anti-Virus appliance, but
Is the direction of rotation correct? I got some data that were going
the wrong way once.
JPK
cp4bb] HKL2000 indexing problem
Hi all,
I recently collected a data set off a single crystal and have had problems with
indexing it. Every time I go pick peaks for indexing it constantly picks peaks
that are just slightly off the actual peak. After indexing, it would always be
that 2 of the 3
Sounds exactly like something is off in your site.def file. I would look to
the beam center.
Also, have you tried indexing with another program? Mosflm perhaps. I find
that if one program cannot index the data, another usually can (as long as
the data isn't too horrible!). Thus I always try to pro
[CCP4BB@JISCMAIL.AC.UK] on behalf of Peter Hsu
[hsuu...@u.washington.edu]
Sent: Monday, February 20, 2012 6:28 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: [ccp4bb] HKL2000 indexing problem
Hi all,
I recently collected a data set off a single crystal and have had problems with
indexing it. Every time I
Hi all,
I recently collected a data set off a single crystal and have had problems with
indexing it. Every time I go pick peaks for indexing it constantly picks peaks
that are just slightly off the actual peak. After indexing, it would always be
that 2 of the 3 cell dimensions would be fairly n
