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display values for estimations of the minimal and maximal distance (radius) of the scattered beam from the beam centre the corresponding values for the momentum transfer Q the corresponding values of the ... Complete the setting information by choosing the collimation, the beamstop position Bx and By, the beam centre values X0 and Y0 (in pixels) ...

38 39 40 41 42 43 44 45 46 47 48 49 50 further parameters stored with the data 51 beam centre address X0 [cell#] x 52 beam centre address Y0 [cell#] x 53 wavelength [] x 54 relative wavelength resolution

again (type mad [cr] as /users/d22). 10. Low flux Main reasons for a lower flux than expected are Beam closed Attenuator in place Selector failure Closed entrance aperture (it is controlled from the module ... to do this. Is it really worth to risk to sacrifice the whole detector just for a few hours/days of beam? OK, you still want to do so ? Find ...

very small beam divergence ~0.1°. Clearly, beam polarisation is only of high quality for wavelengths longer than ~10 Å where the measured flipping ratio exceeds FR > 10. Since beam the beam divergence ... polariser and RF spin flipper to provide a polarised incident beam. More recent developments to implement spin-analysis of the scattered beam ...

front of the neutron guide crossing the "casemate" wall, and after the beam monitor and attenuator, there is a remotely controlled beam-defining aperture. The control box for this unit is in the instrument ... the mirror. Their direction can be made co-axial to the incoming neutron beam, thus faciltitating the setup of the sample in the beam. 7. ...

ILL is electro-mechanical. The key allowing to switch the beam on is kept prisoner in the beam shutter box while the beam is on. When the beam is off, the two electro-magnetic locks at the sample zone ... D22cupboards D22_PF1_procedure svergun 2. Beam Shutter Control The Beam Shutter Control box (CCO D22) is situated left of the main sample zone ...

direct beam measurment. There are several subroutines available. The simplest one just divides the 2D image by a direct beam spectrum by interpolating the direct beam wavelengths to the reflected beam measurement: ... is the reflected beam measurement, 370340 is the direct beam run number and 370341 is the background measurment. slitwit slitwit is ...

with recondensation unit The magnetic field homogeneity is 0.5% in a Ø10mm sphere centered on the beam axis. The maximum sample volume is Ø38 x 30 mm with ±5° vertical access. Type ILL VTI Tmin 1.5K Tmax

is 0.5% in a Ø10mm sphere centered on the beam axis. The beam opening is Ø20mm. The standard sample stick can be inserted so that its extremity reaches the beam height. Type ILL VTI Tmin 1.5K Tmax 300K

top loaded into the sample chamber, which has aluminium shields and walls transparent to neutron beams. The radiation shields, at liquid nitrogen temperature, between the variable-temperature insert (V ... Cryofurnaces & high-T inserts available from the pool Code Temperature Range (K) Material in the beam Sample Dimensions Ø x height (mm) Type, ...