title: Efficiency of grain production and latent image fading in F-18 micro-autoradiography.
abstract: In 18F micro-autoradiography using a frozen section method, the grain production was measured relative to the exposure time and radioactivity. The grain production increased until 6-hr exposure, but 7-hr or longer exposure induced a characteristic of latent image fading. However, the ratios of the efficiency of grain production between two different 18F-radioactivities (11.9 and 2.3 mBq/100 microns2) were constant over experimental exposure times, thus indicating that quantitative analysis by grain counting is preserved.
authors: Department of Radiology and Nuclear Medicine, Tohoku University, Sendai.
authors: S
authors: S
authors: Yamada
authors: R
authors: R
authors: Kubota
authors: K
authors: K
authors: Kubota
authors: K
authors: K
authors: Ishiwata
authors: T
authors: T
authors: Ido
mesh_terms: D000818:Animals; D001345:Autoradiography / Q000379:methods*; D005462:Fluorine Radioisotopes; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL
chemical_list: D005462:Fluorine Radioisotopes