Original sentence: In 1967 the first Nucleonic Gauge was developed to measure the level within a vessel at ([Billingham]) chemical works.In the 1960s the division was named Physics and Radioisotope Services, performing flow studies, leakage tests and column scans on chemical plant in the UK
Edited sentence: Geiger–Müller tube were used initially in 1958, the first work with photo-Scintillators done in 1964.In 1966 the first Nucleonic Gauge was developed to measure the level within a vessel at ([Billingham]) chemical works.In the 1966 the division was named Physics and Radioisotope Services, performing flow studies, leakage tests and column scans on chemical plant in the UK