*** For details on how to be removed from this list visit the ***
*** CCP4 home page http://www.ccp4.ac.uk ***
My understanding is that this source uses the magnetic field of the
laser light as an undulator with about 10T field strength, virtually
perfect harmonic behaviour and a few thousand periods over the length of
the straight section because the period is only ~700nm long (or whatever
laser wavelength they end up using). Because of the high magnetic field
you can do with a much lower energy electron storage ring which allows
for the small size and "low" operating cost. You indeed change the
wavelength by changing the electron energy. Electron bunches are dumped
and a fresh one injected every few milliseconds so beam intensity
remains virtually constant.
My expectation is that this technology on paper has the qualitative
properties of an excellent undulator beamline but perhaps the brilliance
of a strong bending magnet beamline. I believe Donald Ruth is presenting
another seminar on his technology at the ACA later this month.
Ultimately we have to see a full system up and running to evaluate. The
last I heard, the first installation is planned for some time next year.
Bart
Nave, C (Colin) wrote:
*** For details on how to be removed from this list visit the ***
*** CCP4 home page http://www.ccp4.ac.uk ***
Ranvir
This question comes up occasionally (I was asked about this source last Friday).
As I understand it the source is based on a small low energy electron storage
ring and a high average power laser. The photons from the laser receive extra
energy by scattering from the electrons (the inverse Compton effect). The
energy of the electrons is chosen to give x-rays of our desired wavelength. The
set up is designed to give a high average photon flux/brightness. Other types
of inverse Compton facilities are based on linacs (for example) and short pulse
lasers to give a high peak flux of x-rays (short intense pulse) but with a
lower repetition rate.
I believe the aim of Compact Light Source is to get performance similar to a
bending magnet on a (second generation?) storage ring. This could sell provided
the cost is reasonable.
I presume they are building/testing their prototype and are not releasing too
much information at this stage. I have just looked at their web site and there
are some details there (http://www.lynceantech.com/sci_tech_cls.html).
Those thinking of upgrading their data collection facilities would clearly like
to know when the source would be available. I am afraid I can't help here.
Regards
Colin
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of
Ranvir Singh
Sent: 07 July 2006 11:31
To: CCP4 Bulletin Board
Subject: [ccp4bb]: Information on Comapct Light Source
*** For details on how to be removed from this list visit the ***
*** CCP4 home page http://www.ccp4.ac.uk ***
Dear members
I have been recently informed about 'mini synchrotron'
or Compact Light Source, being tested. Lyncean
Technologies claims to manufacture room size x- ray
source which can provide x-rays comparable in quality
and flux to those available at synchrotons. Yet their
website has little technical information.
I will highly appreciate if any one can provide me
with some insights about this new development
with best wishes
Ranvir
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
--
==============================================================================
Bart Hazes (Assistant Professor)
Dept. of Medical Microbiology & Immunology
University of Alberta
1-15 Medical Sciences Building
Edmonton, Alberta
Canada, T6G 2H7
phone: 1-780-492-0042
fax: 1-780-492-7521
==============================================================================
