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Portable scintillation ratemeter

Portable scintillation ratemeter

1946-1958
Headphones for ratemeter

Headphones for ratemeter

1946-1958
Type C4 Rotating Mirror High Speed Camera

Type C4 Rotating Mirror High Speed Camera

1950-1959
Type C4 Rotating Mirror High Speed Camera

Type C4 Rotating Mirror High Speed Camera

1950-1959
Fixed Glass Mirror, Beam Splitter, Rotating Mirror on Base

Fixed Glass Mirror, Beam Splitter, Rotating Mirror on Base

Medical Thermographic Scanner display unit and recording unit , England, c. 1970

Medical Thermographic Scanner display unit and recording unit , England, c. 1970

1970
C4 Rotating Mirror High Speed Camera bolted to rectangular wheeled steel frame - wheels missing

C4 Rotating Mirror High Speed Camera bolted to rectangular wheeled steel frame - wheels missing

1950-1959
This portable scintillation ratemeter is a model 1413A designed by the Atomic Energy Research Establishment in Harwell, and built by Isotope Developments Ltd in Aldermaston, between 1946 and 1958. This ratemeter was modified for the specific purpose of performing geological surveying. The scintillation ratemeter is kept in a portable black leather case which can be unbuttoned to uncover different sections and panels of the ratemeter. The ratemeter itself has a wooden casing with an ammeter glass dial on the top (which can also be seen through the case via a cut-out in the leather casing). The wooden casing has its own plastic handle, and in the centre of the casing are the switches which turn on and adjust the ratemeter, as well as the jack for the ratemeter’s headphones. The casing also has this ratemeter’s serial number: No A 120. The side of the casing has a screwable cap where the mercury battery cells are replaced.

This portable scintillation ratemeter

1946-1958
Display unit showed a ‘grey scale’ scanned picture of the patient on a cathode ray tube with superimposed contour marks, usually in one degree Celsius intervals. This indicated temperature differences in a range of tissues, including tumours.

Display unit

1980
Circular unit from the medical thermographic scanner display and recording set-tup. The mechannism inside could be seen through the plastic transparent casing. The unit is on castors.

Circular unit

1980
High-speed camera system head with customised fast-readout CCD sensor, developed by the Atomic Weapons Establishment, Aldermaston, 1980-1985

High-speed camera system head with customised fast-readout CCD sensor

1980-1985