Half-Life: 1. Daughter of Radium

Drawn to a family legend about his German-Jewish family’s dramatic escape from Nazi Germany in 1936, the writer Joe Dunthorne accidentally discovers a far more disturbing history.
A conversation with his granny, who spent her childhood brushing her teeth with the radioactive toothpaste her father Siegfried manufactured, leads Joe to finally read his great-grandfather's nearly 2,000-page long unpublished memoir. Hidden on page 1692 he finds an unsettling confession.
Written and presented by Joe Dunthorne, (based on his book Children of Radium: A Buried Inheritance)
Produced by Eleanor McDowall
Music by Jeremy Warmsley
Mixing engineer, Mike Woolley
Story consultant, Sarah Geis
Executive producer, Alan Hall
A Falling Tree production for BBC Radio 4