Affiliation: | Central Electricity Generating Board, Berkeley Nuclear Laboratories, Berkeley, Gloucestershire, Great Britain;Schlumberger Cambridge Research, Cambridge, Great Britain;Central Electricity Generating Board, South Western Region, Scientific Services Division, Bedminster Down, Bristol, Great Britain;Central Electricity Generating Board, North Western Region, Scientific Services Division, Wythenshawe, Manchester, Great Britain;Central Electricity Generating Board, Central Electricity Research Laboratories, Leatherhead, Surrey, Great Britain |