Abstract
Recent investigations in using wavelength-shifting fibers with scintillator screens for two-dimensional position sensitive neutron detection have shown this method to be effective and affordable. However, hydrogen and carbon atoms in the readout fibers scatter many neutrons traveling into the scintillator and affect the detector's efficiency and position resolution. In this work we seek to quantify these effects for various neutron energies using Monte Carlo simulations of different geometrical cases and suggest methods for mitigating negative effects from neutron scattering.
| Original language | English |
|---|---|
| Pages (from-to) | 1375-1382 |
| Number of pages | 8 |
| Journal | Applied Radiation and Isotopes |
| Volume | 61 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2004 |
Funding
ACS and SAW were supported by a Small Business Innovative Research (SBIR) Grant from the US Department of Energy (DOE) under Contract DE-FG02-0101ER83224. SD was supported by a CRADA subcontract with Oak Ridge National Laboratory (ORNL) within the SBIR grant. ORNL is managed for the DOE under contract No. DE-AC05-00OR22725 by UT-Battelle, LLC. Funding of this work by the DOE under the SBIR grant does not constitute an endorsement by the DOE. The authors wish to thank Roger Richards and Don Hutchinson of the Engineering Science and Technology Division (ESTD) at ORNL for useful discussion and Dr. James F. Ziegler of the United States Naval Academy for making modifications to the TRIM heavy charged particle transport code that enabled us to perform some of our calculations.
| Funders | Funder number |
|---|---|
| US Department of Energy | |
| U.S. Department of Energy | DE-FG02-0101ER83224 |
| Oak Ridge National Laboratory | |
| Small Business Innovative Research and Small Business Technology Transfer |
Keywords
- Neutron scattering research
- Neutron scintillator detector
- Position-sensitive neutron detection
- Sol-gel glass