Instrument details
Spectrometer elements
Monochromators
PG monochromator (vertical focus)
Distance from the 1st collimator : 1203 mm
Thickness : 2 mm
Dimensions of each crystal：W40 × H12 mm
Mosaic spread 30'
Number of crystals : 11 (rows) x 5 (columns)
Heusler monochromator (transmission-type)
Single crystal magnetized along the vertical direction
Window size : W 50 x H 70 mm
Analyzers
PG analyzer (vertical focus)
Distance from the 3rd collimator : 150 mm
Thickness of PG crystals : 2 mm
Dimensions of each crystal：W40 × H12 mm
Mosaic spread 30'
Number of crystals : 5 (rows) x 5 (columns)
Horizontal-Focusing Analyzer (HFA-flex)
Thickness of PG crystals : 2 mm
Total width/height of PG crystals : W220 x H104 mm
Dimensions of each crystal：(top and bottom) W22 × H30 mm, (middle) W22 x H40 mm.
Mosaic spread 30' (?)
Number of crystals : 3 (rows) x 9 (columns)
Heusler analyzer (transmission type)
Single crystal magnetized along the vertical direction
Window size : W 50 x H 70 mm
Collimators
Filters
Sapphire filter (old)
Dimensions : 28.6 mm (width) x 56.2 mm (height) x 84.0 mm (length)
Placed between the monochromator and 2nd collimator.
Sapphire filter (new)
Dimensions : 30.0 mm (width) x 80.0 mm (height) x 84.0 mm (length)
Placed between the monochromator and 2nd collimator.
PG filter
Placed between the sample and 3rd collimator.
Detector/Monitor
see also MCA analysis log.
Detector
3He, 8 atm
HV : iseg NHQ 222M (Channel A : 1450 V)
Preamp : CANBERRA model 2006E
AMP/SCA : CANBERRA AMP/SCA 2015A (Gain: coarse 128, fine 0, time-constant: fix (2 μs) ), Window mode (Lower 0.46 V, dE=2.29 V)
Low-sensitivity monitor (old 6G monitor, for PG mono)
3He
HV : iseg NHQ 222M (Channel B : 1000 V)
Preamp : CANBERRA model 2006E (CANBERRAのAMP/SCA 2015Aから給電)
Main Amp : ClearPulse 4417 (Gain: coarse 16, fine 0, time-constant: 1 μs )
SCA : ClearPulse 1150, (Integral mode: upper 4.6 V, lower 0.25 V)
Correction factor for inelastic scattering (Cowley correction)
High-sensitivity monitor (LND, for Heusler mono)
3He
HV : iseg NHQ 222M (Channel B : 700 V)
Preamp : CANBERRA model 2006E (CANBERRAのAMP/SCA 2015Aから給電)
Main Amp : ClearPulse 4417 (Gain: coarse 16, fine 0, time-constant: 1 μs )
SCA : ClearPulse 1150, (Integral mode: upper 4.6 V, lower 0.25 V)
Slits
Slit 1(incident) and 2(outgoing)
Maximum opening : 40 x 40 mm
Devices for polarized measurements
Helmholtz coil
Diameter : 590 mm
4 coils (3 horizontal coils, and 1 vertical coil)
Temperature controller
Lakeshore 335
Computer settings
Control PC
OS: Windows 10 Pro
Spectrometer control program : SPICE/WASABI 1.0
PXI
model : NI-PXIe 8821
PLC
model : FA-3M