Lead has a tenth thickness of about 2” compared to water at around” Our research, policy and public affairs strategy, Our new five-year strategy is evidence led and impact oriented with the following key priorities: To provide quality care and support for the mental and physical health and wellbeing of people affected by dying, death and bereavement. Materials have what’s called a tenth thickness which is how thick a material needs to be to block 1/of the radiation from a given source. Due to th