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Characteristics

Guide hall n° 1, thermal guide H24

beam cross section 30 x 75 mm2

Monochromator

crystal

d-spacing in Åki in Å-1

flux in 106 n cm-2 s-1

PG (002)

3.3551.3 - 3.3 
  2.662

9.3

Cu (111)

2.0872.0 - 5.3 
  2.662

3.6

Heusler (111)

3.4521.3 - 3.2 
  2.662

2.0

Collimation

α1 = (0.015/ki) rad/Å-1

α2, α3, α4 = 10', 20', 30', 40', 60' adjustable by soller collimators

Analyser

horizontally focussing PG(002)

3He detector

50 mm Ø x 12 cm

Instrument description

IN3 is a classic three-axis spectrometer on a through-going neutron guide (Fig.1). A bi-faced monochromator with PG(002) and Cu(111) with variable curvature allows vertical focussing. The IN3 pyrolytic graphite analyser can be curved horizontally, but also additional TAS analysers and instrumental options are regularly used.