oa Temperature Measurement in the Herald Reactor

A mineral insulated platinum: 13 per cent rhodium-platinum thermocouple, clad with 10 per cent rhodium-platinum and stainless steel, has been manufactured for experimental work in the Herald Reactor at Aldermaston. The clad thermocouple unit was 30 feet long and passed through 23 feet of cooling water to a reaction chamber at 1200°C.