Dr. Perry’s notebooks

Images from the notebooks of Dr. B. J. Perry concerning the early EMI CT head scanners

Dr. Perry’s notebooks

Dr. Perry’s notebooks

Dr. Perry’s notebooks

Dr. Perry’s notebooks Feb 1972

Dr. Perry’s notebooks

Dr. Perry’s notebooks June 1976

Dr. Perry’s notebooks July 1977 (Mark I/Mark II ?)

Dr. Perry’s notebooks

Dr. Perry’s notebooks

Dr. Perry’s notebooks 1976

Dr. Perry’s notebooks

Dr. Perry’s notebooks

The origins of Q (dose efficiency factor) …..