Physics for health: ionisation chamber 1967 PHOTOARC

Geometers and health physics group taking measurements on Mont Citron 1962 Mont Citron was later removed to make way for Linac 4 - the soil was moved next to what is now [2015] SM18. PHOTOARC

1961 PHOTOARC

Visit to the Health Physics Group 1960 PHOTOARC

Film badges 1960 PHOTOARC

Apparatus for measuring of radioactivity and dosimeters 1958 PHOTOARC

1961 PHOTOARC

Bernard Miles Wheatley, the first CERN health physicist 1960 Bernard Miles Wheatley was the first staff member recruited specifically for radiation hazard supervision. The building of the laboratory can be seen in photo 2698. PHOTOARC

Film badge calibration 1960 PHOTOARC

Semi-automatic densitometer for measurements in physics for health 1970 The new detector for high energy (over 20 MeV) radiation developed by the Health Physics group. Cylinders of a plastic material with a high carbon 12 content are introduced. The carbon 12 under the effect of previous exposure to high energy radiation can be converted into the radioactive isotope carbon 11 which gives off gamma rays. In the detector the cylinder acts as a scintillator revealing its own radiation. This is observed by a photomultiplier tube and recorded on punched tape. Thick walls shield against background radiation. PHOTOARC

Physics for health: equipment for generating and testing ozone 1970 Denise David PHOTOARC

Health physics: development cables 1969 PHOTOARC

Health physics ionisation chambers; PS ionising beam scanner (IBS) 1968 PHOTOARC

763881 DELETED

Health physics: studies of irradiated broad beans 1967 Daily measurement studies were carried out at CERN over 10 days to investigate the effect of radiation on the growth of the primary root of <i>Vicia faba prolifica</i> longpod (by appointment to the HRH Queen Elizabeth II, specially brought over from the UK). Studies examined many different dosages and types of beam, including 400 GeV. Many other studies were done using <i>Vicia faba</i> roots, for instance by looking at genetic damage caused by micronuclei induction, chromosomal aberrations, etc. These roots were a good system for studying a wide range of dosages in a reproducible way. PHOTOARC

Physics for health: measurements laboratory 1963 PHOTOARC

No caption 1964 Rasmus Christian Raffnsøe, radiation surveyor in PS, at his desk, handing out dosimeters to those who had to work in the PS ring area. PHOTOARCIMAGES

Routine blood testing 1968 PHOTOARC

Health physics service working with mice 1963 An experiment invesitgating the relative biological efficiency on rats of secondary radiation by 592 MeV protons from the SC was carried out by G. Legeay and J. Baarli. The results were published in 1968. PHOTOARC