ST-401 plastic scintillation films were prepared by spin coating. The self-supporting films were obtained and they displayed a satisfactory appearance in terms of uniformity and transparence. The relationship between photoluminescence (PL) property and film thickness was presented and the influence of preheat temperature of coating solution on PL intensity of the film was discussed in detail. The results indicated that the PL intensity increased whereas PL intensity ratio of PTP to POPOP decreases with the increase of the film thickness. PL intensity of the film at 423 nm was improved remarkably by heating the coating solution, which makes ST-401 films have a promising application in the detection of low-intensity pulsed fission neutron flux.

Date Published: 11 March 2008
PDF: 4 pages
Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 69841F (11 March 2008); doi: 10.1117/12.792580

Published in SPIE Proceedings Vol. 6984:
Sixth International Conference on Thin Film Physics and Applications
Wenzhong Shen; Junhao Chu, Editor(s)