A new scintillator structure for thermal neutron imaging

✍ Scribed by I. Shestakova; V. Gaysinskiy; J. Antal; L. Bobek; V.V. Nagarkar

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 838 KB
• Volume: 263
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2007.04.092

✦ Synopsis

We are developing a new neutron sensitive scintillator structure designed for incorporation into digital imaging systems. Due to its internal structure and high scintillation efficiency, this new scintillator can simultaneously provide a high spatial resolution, high detection efficiency and excellent signal to noise performance. The scintillator screen consists of a microcolumnar CsI(Tl) film sandwiched between two neutron converter layers of transparent Gd-containing compounds. This paper discusses the scintillator design and characterization. Also, thermal neutron imaging performance evaluated by integrating prototype screens into a CCD camera will be outlined to demonstrate its applicability for such important applications as contraband and threat material detection.