Re: [ccp4bb] Oxford Xcalibur Vs Rigaku micromax

[Ross Angel]

Sankar

We had an Oxford Diffraction PX system, with the same goniometer and 
detector as the Nova, for 3 years until last Fall when we upgraded to 
the Nova. We also have 3 other Xcalibur instruments with the same 
goniometer and control systems. All four diffractometers have 
performed reliably with very little downtime, the oldest now being 
nearly 6 years old, and with very little maintainance. The Nova 
itself has worked well, and has stayed in alignment since it was 
installed 6 months ago. You can see a few more details at www.crystal.vt.edu.


I do not have experience of the micromax. Obtaining a valid 
comparison between any two diffractometers is difficult. I can only 
suggest that you do what the rest of us do, and that is take some of 
your typical crystals and some of your poorer crystals around and try 
them out on each of the instruments that you are considering.


   Ross Angel

At 12:27 AM 2/28/2007, Sankar Narayanan Manicka wrote:

Hi,

Our lab is planning to buy an X-ray machine for protein crystallography.

Which system would be best for home source, Oxford diffraction 
system Xcalibur Nova or a MSC/Rigaku MicroMax-002.



sincerely,
sankar


--

Sankar narayanan Manicka[EMAIL PROTECTED]
C/o Prof. S. Krishnaswamy   +91 452 245 9931 - tel
School of Biotechnology +91 452 245 9105 - fax
Madurai 625 021 +91 94860 88613  - cell
TAMIL NADU INDIA  http://www.mkuniversity.org/biotech_school.htm
l













Ross Angel
Research Professor in Crystallography
Crystallography Laboratory   Tel: 540-231-7974
Dept. GeosciencesFax: 540-231-3386
Virginia Tech
Blacksburg VA 24060-0420 USA http://www.crystal.vt.edu/crystal/

Re: [ccp4bb] Oxford Xcalibur Vs Rigaku micromax

[Byram, Susan]

Well since Jim answered I must do also!! Bruker, together with Incoatec,
has on the market a new Incoatec Microfocus Source with novel QUAZAR
multilayer optics which in my understanding is significantly brighter
than the other systems referred to. This source is very interesting as
it is air cooled - no need for plumbing.

All these models are excellent for their performance compared to the
older style 5.4 kw 300 micron focus generators and are small footprint,
simple systems. They do not equal the brightness of the current
microfocus rotating anode generators (eg Bruker MICROSTAR ULTRA) which
have greatly surpassed the older style 300 micron systems.
We try to give you new technology to help you do excellent science.

All the best
Sue Byram


Susan K. Byram
Business Manager
Crystallographic Systems
Bruker AXS Inc.
5465 East Cheryl Parkway
Madison, WI 53711 USA
Toll-free tel.: (800) 234-XRAY
Tel.:   (608) 276-3041
Fax:(608) 276-3006
e-mail:  [EMAIL PROTECTED]
WWW:http://www.bruker-axs.com

  please note my current email address. The old one
[EMAIL PROTECTED] no longer functions.


-Original Message-
From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of
Jim Pflugrath
Sent: Wednesday, February 28, 2007 11:36 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Oxford Xcalibur Vs Rigaku micromax

Of course, the Rigaku system would be the best.

Jim

On Wed, 28 Feb 2007, Sankar Narayanan Manicka wrote:

 Hi,

 Our lab is planning to buy an X-ray machine for protein
crystallography.

 Which system would be best for home source, Oxford diffraction system 
 Xcalibur Nova or a MSC/Rigaku MicroMax-002.


 sincerely,
 sankar


 --
 
 Sankar narayanan Manicka  [EMAIL PROTECTED]
 C/o Prof. S. Krishnaswamy +91 452 245 9931 - tel
 School of Biotechnology   +91 452 245 9105 - fax
 Madurai 625 021   +91 94860 88613  - cell
 TAMIL NADU INDIA  http://www.mkuniversity.org/biotech_school.htm
 l