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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Please post the following announcement or
forward via e-mail to interested individuals or groups.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=5 color=black face="Times New Roman"><span
style='font-size:16.0pt;color:black;font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><b><font size=5 color=black face="Times New Roman"><span
style='font-size:16.0pt;color:black;font-weight:bold'>LENS SANS Workshop<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=5 color=black face="Times New Roman"><span
style='font-size:16.0pt;color:black;font-weight:bold'>Friday 5 December, 2008<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=5 color=black face="Times New Roman"><span
style='font-size:16.0pt;color:black'> <br>
<br>
</span></font><font size=2 color=black><span style='font-size:11.0pt;
color:black'>Dear Colleague,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black'> <br>
The Low Energy Neutron Source (LENS) at the Indiana University Cyclotron
Facility is pleased to announce that construction of LENS is completed.
The source and the SANS (Small Angle Neutron Scattering) Instrument are both
operational, and the source is ramping up to full power. A second
instrument, SESAME (Spin-Echo Scattering Angle Measurement), is under
construction and expected to be on-line by late Spring of 2009.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black;font-weight:bold'>SANS</span></font></b><font
size=2 color=black><span style='font-size:11.0pt;color:black'> is a technique
that measures small scattering angles due to small inhomogeneitis in the sample
and allows probing structures on a length scale of 20 – 1000 Ǻ. Because
of the advantage of contrast variation through H/D substitution, SANS is
particularly useful for studying hydrogenous systems, i.e. biological
macromolecules, polymers, microemulsions, etc. <b><span style='font-weight:
bold'>SESAME</span></b> uses the spin echo technique to determine the angle
through which neutrons are scattered by a sample. It can be used to carry
out reflectometry experiments as well as simple transmission (SANS)
measurements. It is expected to be able to measure correlations over
distances between a few 10’s of nanometers and 1-2 microns. Details about
the two instruments and the performance of the source can be found on the web </span></font><font
color=black><span style='color:black'><a
href="http://www.iucf.indiana.edu/lens/instruments.php">http://www.iucf.indiana.edu/lens/instruments.php</a></span></font><font
size=2 color=black><span style='font-size:11.0pt;color:black'>. Proposals from
users wishing to perform SANS measurements can be submitted from the website </span></font><font
color=black><span style='color:black'><a
href="http://www.iucf.indiana.edu/sans/beamtime.php">http://www.iucf.indiana.edu/sans/beamtime.php</a>
</span></font><font size=2 color=black><span style='font-size:11.0pt;
color:black'>at any time.</span></font><b><font size=2><span style='font-size:
11.0pt;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black'>I would like to take this opportunity to
invite you to a LENS SANS Workshop at the Indiana University Cyclotron Facility
(IUCF), Bloomington, Indiana, on Friday December 5<sup>th</sup>, 2008, 9:00 –
17:00, and introduce potential users, who are primarily located at universities
in our region, to the capabilities of SANS. We hope to encourage the
discussion of new important and exciting scientific problems that could be
addressed with our instruments as well as developing, in collaboration with
regional partners, neutron scattering education opportunities for graduate and
undergraduate students not already associated with the facility. The user
science program philosophy and beam time application procedure will be
discussed.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;color:black'> <br>
At present we are in the process of drawing up the program for the meeting and
the information/registration form. If you are</span></font><font size=2><span
style='font-size:11.0pt'> interested in attending, please send an e-mail to <a
href="mailto:helkaise@indiana.edu" title="mailto:helkaise@indiana.edu">helkaise@indiana.edu</a>.<br>
<br>
I hope to see you there.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
11.0pt'>With best wishes<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span style='font-size:
11.0pt'>Helmut Kaiser.<font color=black><span style='color:black'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-align:justify'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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