title: Neutron radiography using neutron imaging plate.
abstract: The aims of this research are to study properties of a neutron imaging plate (NIP) and to test it for use in nondestructive testing (NDT) of materials. The experiments were carried out by using a BAS-ND 2040 Fuji NIP and a neutron beam from the Thai Research Reactor TRR-1/M1. The neutron intensity and Cd ratio at the specimen position were approximately 9x10(5) ns/cm(2) s and 100 respectively. It was found that the photostimulated luminescence (PSL) readout of the imaging plate was directly proportional to the exposure time and approximately 40 times faster than the conventional NR using Gd converter screen/X-ray film technique. The sensitivities of the imaging plate to slow neutron and to Ir-192 gamma-rays were found to be approximately 4.2x10(-3) PSL/mm(2) per neutron and 6.7x10(-5) PSL/mm(2) per gamma-ray photon respectively. Finally, some specimens containing light elements were selected to be radiographed with neutrons using the NIP and the Gd converter screen/X-ray film technique. The image quality obtained from the two recording media was found to be comparable.
authors.affiliation: Chalalongkorn University, Bangkok, Thailand. nares.c@chula.ac.th
authors.forename: Nares
authors.initials: N
authors.lastname: Chankow
authors.forename: Suvit
authors.initials: S
authors.lastname: Punnachaiya
authors.forename: Sarinrat
authors.initials: S
authors.lastname: Wonglee
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D009501:Neutron Activation Analysis / Q000295:instrumentation* / Q000379:methods; D009502:Neutrons; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity