This invention is a positron emission tomography (PET) device comprising as a scintillator a perovskite organic/inorganic hybrid compound selected from the group represented by the general formulae: <?in-line-formulae description='In-line Formulae' end='lead'?>(R<SUP>1</SUP>-NR<SUP>11</SUP><SUB>3</SUB>)<SUB>2</SUB>MX<SUB>4 </SUB>or (R<SUP>2</SUP>-NR<SUP>12</SUP>)<SUB>2</SUB>MX<SUB>4</SUB>, (NR<SUP>13</SUP><SUB>3</SUB>-R<SUP>3</SUP>-NR<SUP>13</SUP><SUB>3</SUB>)MX<SUB>4</SUB>, or (NR<SUP>14</SUP><SUB>2</SUB>-R<SUP>4</SUP>-NR<SUP>14</SUP><SUB>2</SUB>)MX<SUB>4</SUB>, or AMX<SUB>3</SUB>.<?in-line-formulae description='In-line Formulae' end='tail'?> When used as a scintillator, the perovskite organic/inorganic hybrid compound emits visible light with a very fast (subnanosecond order) response, allowing for improved resolution and time-of-flight PET methods.
Positron emission tomography device