C. Bahr et al., CALCULATION OF NEUTRON RESPONSE FUNCTIONS IN COMPLEX GEOMETRIES WITH THE MCNP CODE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 411(2-3), 1998, pp. 430-436
For the analysis of (e,e'n) coincidence experiments at the superconduc
ting Darmstadt electron linear accelerator S-DALINAC, neutron response
functions of NE 213 liquid scintillation detectors had to be calculat
ed. We report, for the first time, on calculations of neutron response
functions with a modification of the MCNP code taking into considerat
ion nonlinear light output functions for secondary charged particles.
The code was tested for a simple detector geometry against the widely
used NRESP code. Excellent agreement between results of NRESP and MCNP
calculations was achieved for neutron energies up to 8 MeV when the s
ame detector model, light output functions and neutron cross sections
were used. With this modification of the MCNP code, the response funct
ions can now be determined for arbitrary complex detector arrangements
, e.g. including massive shieldings. (C) 1998 Elsevier Science B.V. Al
l rights reserved.