Parameters & Technical Specifications for TASP

TASP occupies the end position of the neutron guide 1RNR14 that has a critical wavelength λmin = 1.7 Å. Some specific features of the instrument are:

  • Optional Collimation of the Beam before the Monochromator
  • W-configuration Possible for all Accessible Scattering Vectors
  • Polarization Capability using HOPG combined with polarising benders
  • Vertically Focusing Monochromator
  • Horizontally Focusing Analyser
  • Neutron Polarimetry using the MuPAD setup
Neutron guide of TASP
Polarizing bender for TASP
Measured resolution as a function of kf
Distance cold source - TASP 54 m
Monochromator scattering angle 31° < 2θM < 128°
Analyser scattering angle -145° < 2θA < 145°
Neutron energy (PG 002) 2.3 meV < EM < 25 meV
6.0 Å > λM > 1.8 Å
1.05 Å-1 < kM < 3.8 Å-1
Sample Scattering Angle 2θS < 135°
Sample environment maximum load 500 kg
Inpile collimation 20', open
External collimation 10', 20', 40', 80', open
Detector Single 3He-tube
Typical spectrometer resolution (FWHM)
(for open-40'-40'-40')		 ΔE = 40 µeV (EM = 2.5 meV)
ΔE = 0.9 meV (EM = 14.7 meV)
Filters cooled Be, pyrolytic graphite