This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1016/j.nima.2005.07.040 in citations.
Novel materials and concepts for neutron image plates
Novel materials and concepts for neutron image plates
Neutron image plates (NIPs) are used for two-dimensional, position-sensitive detection of neutrons. Commercially available neutron image plates consist of a mixture Gd2O3 and BaFBr:Eu2+. In this contribution we present a system of converter ((LiF)-Li-6) and storage phosphor (KCl:Eu2+), which exhibit...
Saved in:
Personal Name(s): | Fröhlich-Schlapp, M. |
---|---|
Ioffe, A. / Conrad, H. / Brückel, T. / Fueß, H. / von Seggern, H. | |
Contributing Institute: |
Streumethoden; IFF-ISM |
Published in: | Nuclear instruments & methods in physics research / A, 551 (2005) S. 46 - 51 |
Imprint: |
Amsterdam
North-Holland Publ. Co.
2005
|
Physical Description: |
46 - 51 |
DOI: |
10.1016/j.nima.2005.07.040 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
551 |
Subject (ZB): | |
Publikationsportal JuSER |
Neutron image plates (NIPs) are used for two-dimensional, position-sensitive detection of neutrons. Commercially available neutron image plates consist of a mixture Gd2O3 and BaFBr:Eu2+. In this contribution we present a system of converter ((LiF)-Li-6) and storage phosphor (KCl:Eu2+), which exhibits a high efficiency for the detection of neutrons, while at the same time features a low gamma-sensitivity due to the low atomic numbers. Two different morphologies of image plates based on KCl:Eu (2+)- (LiF)-Li-6 were fabricated: ceramic (C-NIPs) and pixelated NIP (Pix-NIPs). For these NIPs a neutron equivalent of 1/20 neutron per photon for soft gamma-rays was found while the equivalent for hard gamma-quanta is 1/400 neutron per absorbed photon. The detective quantum efficiency (DQE) of a C-NIP consisting of KCl:EU2+- (LiF)-Li-6 amounts to 38%, a value which is comparable to commercially available neutron image plates.Pix-NIPs represent a novel structure in which the scattered light is confined to square cells embedded in the image plate. Due to this light confinement, the resolution of such an image plate is primarily independent of scattering properties of the NIP and is mainly a function of the size of the cell structure used. (c) 2005 Elsevier B.V. All rights reserved. |