Super-D2B or D not-to-be ? Emmanuelle Suard & Alan Hewat, - - PowerPoint PPT Presentation
Super-D2B or D not-to-be ? Emmanuelle Suard & Alan Hewat, Diffraction Group, ILL. What new science will be possible ? A factor of x6, small samples, new materials, high pressure Highest resolution, subtle transitions,
ILL Millennium Presentation 27 March 2000
ILL Millennium Presentation 27 March 2000
John Finney (London) Paul Attfield (Cambridge) Peter Battle (Oxford) Colin Greaves (Birmingham) Peter Hatton (Durham) Kosmas Prassides (Sussex) Simon Redfern (Cambridge) Keith Ross (Salford) Kurt Ziebeck (Loughborough)
ILL Millennium Presentation 27 March 2000
ILL Millennium Presentation 27 March 2000
R. Cywinski Magnetism College Chairman “The subcommittee expressed its strongest support for the super-D2B high-resolution diffractometer upgrade... the principal advantage of the proposed order of magnitude increase in intensity would not be that more experiments could be performed, but that new science would ensue”.
Crystallography College Chairman. “Over one hour was devoted to the discussion…the highest priority was given ex aequo to Thermal LADI and the D2B upgrade. Both proposals were considered of outstanding quality, both in its scientific case and its technical feasibility”.
Science Council Powder Review “The super-D2B upgrade project, presented within the new ILL Millennium Programme, was considered as a first priority, in particular the new (and higher) detector set. This would allow to use routinely the D2B instrument in its highest resolution mode”.
“Our research group has shown the complementarity between neutron and synchrotron techniques by solving complex structures using joint refinement… from D2B and BM16 at ESRF. These structures cannot be solved from synchrotron data alone, and neutron data were essential…”
further wrote in October 1999 “The subcommittee expressed its strongest and unequivocal support for the super-D2B high resolution diffractometer upgrade”. “Several Experiments proposed during this round underlined the need for both high resolution and high count rate”.
ILL Millennium Presentation 27 March 2000
ILL Millennium Presentation 27 March 2000
ILL Millennium Presentation 27 March 2000
Operation of D2B is 100% funded by ILL, and this will continue
But 3 MFF capital investment is needed for the new super-D2B detector
A further 3 MFF investment in neutron optics for an optional stage 2
The project has strong support from the German & French communities
Super-D2B would be available to the entire user community
Super-D2B would be seen as a unique contribution of the UK
ILL Millennium Presentation 27 March 2000
Number of ILL Publications 1995-1999 per Instrument
6 instruments produce half the ILL's publications (and half the ILL's Phys.Rev.Let.) Notes: Only publications listed by ILL library. Possible naming errors for NFP instruments. 184 148 105 96 67 51 49 46 41 40 38 38 36 35 35 34 32 31 30 25 25 22 17 16 16 15 12 10 8 4 134 20 40 60 80 100 120 140 160 180 200 D1B IN6 D2B D11 IN5/IN5B D1A IN14 IN8 IN10/IN10B IN3 D4/D4B D19 IN12 D3/D3B IN16 IN20 D22 IN11 D20 D9 D10 IN4/IN4B/I IN1 D15 IN13 PN3/GAMS D16 IN15 PN1 PF2 PF1
ILL Millennium Presentation 27 March 2000
7 instruments attract half the ILL's proposals (The same 6 plus D22) Notes: Only last 2 years considered. Some instruments not available. 273 231 175 130 119 95 92 84 75 75 74 69 61 59 56 54 50 49 48 47 45 42 40 36 36 31 30 29 24 24 21 19 17 15 9 8 6 5 50 100 150 200 250 300 D22 D2B D11 IN6 D1B IN5 D1A IN16 D20 D4 D9 IN14 IN1 D10 D3 IN11 D7 IN10 IN4 IN20 A DA M D19 IN8 PN1 PN3 D15 IN15 D17 D16 IN13 LA DI PF1 IN12 IN22 EV A DB21 IN3 D23
ILL Millennium Presentation 27 March 2000
Cava, Hewat et al. (1990). Physica C. 165: 419
ILL Millennium Presentation 27 March 2000