250kv x-ray set type TFI554 designed for radiotherapy but subsequently modified for calibrating radiation monitors

Made:: 1954 in St Albans

maker:: Marconi Instruments Limited

250kv x-ray set type TFI554 designed for radiotherapy but subsequently modified for calibrating radiation monitors, comprising gantry mounted tube, contra panel, and accessories, by Marconi, English, c.1954

Details

Category:: Radiomedicine

Object Number:: 1983-100

Materials:: steel

type:: x-ray machines

credit:: Health and Safety Executive

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Parts

Ten polythene water phantoms used by the Health and Sefety Executive

Ten polythene water phantoms used by the Health and Sefety Executive for tests regarding radiation exposure of gas pipeline radiologists, not used with 1983-100, early 1970s

Measurements:: of highest: height 600 mm
of widest: width 290 mm
of deepest: depth 240 mm

Materials:: polythene

Object Number:: 1983-100/1

type:: radiological phantoms

X-ray tube inserts

Two x-ray tube inserts, type CM 250T (250kv, 15MA, 6mm focal spot, 45 degree target angle) one still in crate, by Machlett, 1955-1975, English

Measurements:: length 550 mm
diameter 95 mm

Materials:: steel , tungsten and glass

Object Number:: 1983-100 Pt2

type:: thermionic x-ray tubes

Rectifying valves for use with x-ray machine

Four rectifying valves for use with 250kv x-ray machine; two by Machlett, others by English Electric and Mullard

Object Number:: 1983-100 Pt3

type:: thermionic x-ray rectifier tubes

Control panel for x-ray radiotherapy machine

Control panel for 250kv x-ray radiotherapy machine, with wall-mounting plate

Measurements:: height 870 mm
width 735 mm
depth 370 mm

Materials:: steel and knobs, plastic

Object Number:: 1983-100 Pt4

type:: x-ray control panels

Illuminated sign indicating that 250kv Radiotherapy machine is

Illuminated sign indicating radiotherapy machine is in use

Illuminated sign indicating that 250kv Radiotherapy machine is in operation

Measurements:: width 335 mm
height 305 mm
depth 105 mm

Materials:: steel and plastic

Object Number:: 1983-100 Pt5

type:: signs

Image ©: The Board of Trustees of the Science Museum

x-ray applicators

33 applicators for 250kv x-ray radiotherapy machine

Measurements:: all: height 338 mm
max: width 255 mm
max: depth 160 mm

Materials:: steel , lead and plastic

Object Number:: 1983-100 Pt6

type:: x-ray applicators

x-ray filter assemblies

13 filter assemblies and 21 extra metal filters for 250kv radiotherapy machine

Measurements:: max. assemblies: depth 155 mm
max. assemblies: width 150 mm
max. assemblies: height 25 mm
filters: width 87 mm
filters: depth 87 mm