142
C. H. Pyeon
Y
X
Z
Y
X
Z
0
30
60
90
120
150
210
180
330
Acryl plate
(100 mm diameter, 3 mm thick)
100 mm
Top view
Side view
Proton beams
Proton beams
Stainless
steel flange
3 mm thick
Center position
Tungsten target
(80 mm diameter, 10 mm thick)
Indium foil
(10 10 3 mm
3 )
Fig. 5.6 Experimental setting of tungsten target for angular distribution of spallation neutrons (Ref.
[15])
Tungsten target
(80 mm diameter, 10 mm thick)
NE213 detector (5”)
930 mm
Proton beams
(100 MeV)
Beam Tube
Neutron
(0 deg.)
Iron
Pb-block
735 mm
Y
X
Z
Fig. 5.7 Experimental setting of the organic liquid scintillator (NE213) (Ref. [15])
with the use of specific equipment (Laboratory Equipment Corp., Dual MCA) readily
provide a two-dimensional graphic image (rise time and light output). This system
allows the rise time information on two signals to accomplish easy discrimination
between the γ-ray and the neutron, and the signals can be converted into fluorescence
signals of charged particles (recoil protons generated in reaction with neutrons).