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SUMMARY:Engineering Approach to Instrumentation Development for High-Press
 ure Research - Prof. Konstantin Kamenev\, University of Edinburgh\, Schl o
 f Engineering &amp\; Electronics and Centre for Science at Extreme Conditi
 ons
DTSTART:20170308T111500Z
DTEND:20170308T121500Z
UID:TALK70525@talks.cam.ac.uk
CONTACT:Helen Verrechia
DESCRIPTION:Historically high-pressure (HP) research has been an area that
  is heavily dependent on the availability of the experimental equipment. M
 any of the discoveries in HP science followed promptly from breakthroughs 
 in instrumentation development\, which provided researchers with higher pr
 essure limits or larger sample volumes. A limited availability of commerci
 al pressure cells and the need to remain at the cutting edge of the resear
 ch make it likely that anyone working in this field will at some point eng
 age in designing new or in modifying existing HP equipment. However\, most
  HP scientists are not mechanical engineers and it is therefore difficult 
 for them to endeavor in the design process. This presentation aims to intr
 oduce an engineering approach to developing pressure cells and to present 
 such generic tools as computer aided design (CAD) and finite element analy
 sis (FEA).\nThe use of engineering methods in the design of HP equipment w
 ill be illustrated using recently developed pressure cells. This includes 
 some new devices for neutron scattering such as a rotator for the Paris-Ed
 inburgh (P-E) press which provides rotational motion of the anvils at load
 s of up to 100 tonnes and can be used to study large single crystals at pr
 essures of up to 10 GPa[1]. Another example is a gas loader for the P-E pr
 ess which can be used to load gases into the sample space at pressures ove
 r 0.15 GPa for subsequent studies of gases and gas mixtures as well as for
  use of gases as pressure-transmitting media to pressures of over 6 GPa[2]
 . A large volume pressure cell with optimized transmission for inelastic n
 eutron scattering will also be presented[3]. The examples of use of FEA fo
 r miniaturization of the pressure cells and their components will include 
 miniature pressure cells for X-ray diffraction[4] and magnetic property me
 asurements[5]. The first 3D-printed diamond anvil cell will be presented t
 o illustrate the advantages of using this fast developing manufacturing te
 chnique[6]. \n\n[1] J. Fang\,  C. L. Bull\,  H. Hamidov\,  J. S. Loveday\,
   M. J. Gutmann\,  R. J. Nelmes\,             K. V. Kamenev\, Rev. Sci. In
 strum. 2010\, 81\, 113901.\n[2] A. Bocian\, C. L. Bull\, H. Hamidov\, J. S
 . Loveday\, R. J. Nelmes\, K. V. Kamenev\,        Rev. Sci. Instrum. 2010\
 , 81\, 093904.\n[3] W. Wang\, D. A. Sokolov\, A. D. Huxley\, K. V. Kamenev
 \, Rev. Sci. Instrum. (submitted).\n[4] G. Giriat\, S. Moggach\, S. Parson
 s\, K. V. Kamenev\, (in preparation).\n[5] G. Giriat\, W. Wang\, J. P. Att
 field\, A. D. Huxley\, K. V. Kamenev\, Rev. Sci. Instrum. 2010\, 81\, 0739
 05.\n[6] H. Jin\, C. Woodall\, X. Wang\, S. Parsons\, and K. V. Kamenev\, 
 Rev. Sci. Instrum. (accepted).\n
LOCATION:Mott Seminar Room (531)\, Cavendish Laboratory\, Department of Ph
 ysics
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