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glass filter was removed. The lamp was placed in a metal housing to avoid hazards to skin or eyes. The beam was focused on the sample through quartz lenses. With ultra-violet rays the dose rate is much higher

Coulter and collaborators [1] first showed that it was possible to polarise a polychromatic neutron beam by simple transmission/absorption through a polarised helium-3 filter. At the same time, Francis Tasset

the beam can be polarised simultaneously (i.e. select only the neutrons which have spins all in the same direction). The monochromatic beam is shaped by a set of slits and can be shut-off by a beam shutter ... n direction at will. The monochromatic polarised beam is then reflected by the sample. A second flipper and an analyser measure the change ...

configuration. Unpolarised neutrons are reflected by the graphite monochromator. The incident neutron beam is polarised by the supermirror bender polariser. For measurement of SF cross-sections, the neutrons

configuration. Unpolarised neutrons are reflected by the graphite monochromator. The incident neutron beam is polarised by the supermirror bender polariser. For measurement of SF cross-sections, the neutrons

materials, and is used by scientists from chemistry, physics, biology and materials science. By firing a beam of neutrons at just a tiny sample of material – which could include anything from proteins and DNA ... the atomic structure are revealed by analysing the intensities and dispersion angles of the neutron beams scattered by the sample. While ...

and assembled into distinct instruments. Each component could be given a relative location on the beam-line, terminating at the detectors. At the ILL the first instrument with such data was BRISP, a new

absorbing liquid 3 He in 1975. To observe the small signal counting was continuous for over two weeks. The beam monitor data exceeded this count limit several times and posed major problems in normalising the data ... This was used in the data save routines; the first twelve or so values were read from electronics (beam monitor, time etc.) and the ...

computer. With additional computing power the KL1091S received serial line data from many of the neutron beam instruments; a polling program looked for data transfer requests from several instruments. The DEC

shared. In operation the electron beam was positioned and moved on the screen. Secondary electrons were picked off an adjacent grid, and used to rewrite the screen. The two beams were gated to operate independently