Part of a series entitled “Optical Munitions - School of Natural Philosophy, 1942-1945”. Black and white photo of T.H. Laby holding a gun sight. Catalogued out of order as 122.2 (Photograph temporarily mislaid and repllaced by a P/C)

The spectrograph employs the principle of single crystal Bragg X-Ray Diffraction to measure wavelengths by interpolation from accepted standard lines. It is suitable for the identification and determination of the charateristic emissions of elements and thus for X-Ray spectrum analysis. The instrument was manufactured by ADAM HILGER Ltd. to the design of Professor Laby and is the best preserved instrument surviving from his research activity. A full description is given in the Hilger Pamphlet with the instrument; alternatively see duplicate in Appendix A5,A6 in Vol 2 of Laby ‘s COLLECTED PAPERS.Laby Bibliography by R W Home “Physics in Australia 1945” pp 106-08; also reproduced by permission as Appenix C in “A Man Ahead of his TImes”By E G Muirhead References. nos 45, 41, 47, 52, 53

Black and white photograph of cyclotron machinery in white envelope entitled “”Cyclotron Photographs (Duplicate set)’

Black and white photograph of cyclotron machinery in white envelope entitled “”Cyclotron Photographs (Duplicate set)’

Black and white photograph of bench with cyclotron equipment in white envelope entitled “”Cyclotron Photographs (Duplicate set)

Black and white photograph of bench with cyclotron equipment in white envelope entitled “”Cyclotron Photographs (Duplicate set)

Black and white photograph of bench with cyclotron equipment in white envelope entitled “”Cyclotron Photographs (Duplicate set)

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron Photographs (Duplicate set)

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron Photographs (Duplicate set) Very similiar to 236

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron Photographs (Duplicate set) Very similiar to 235

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Very similiar to 238 and 239

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Very similiar to 237 and 239

Black and white photograph of cyclotron equipment stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Very similiar to 237 and 238

Black and white photograph of cyclotron equipment. Man seen standing next to and indicating equipment. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)”

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 247

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246, 248-250

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246-248, 250

Black and white photograph of cyclotron equipment displayed on bench. Stored in white envelope entitled “”Cyclotron - Photographs around the vacuum chamber from J.L. Rouse (Feb 1991)” Similiar to 246-249

Builit in 1950s and used till the mid 1970s within the Physics Department used in Melbourne. John Rouse and David Caro was involved in the construction.Black and white photo of cyclotron (nuclear physics accelerator): spectrometer magnet & target chamber. Duplicate of 174.Sticky typed labels on back from top and left to right: “TARGET CHAMBER, 180 SPECTORMETER MAGNET, TURNTABLE”

Builit in 1950s and used till the mid 1970s within the Physics Department used in Melbourne. John Rouse and David Caro was involved in the construction.Black and white photo of cyclotron (nuclear physics accelerator): spectrometer magnet & target chamber. Duplicate of 175.Sticky typed labels on back from top and left to right: “TARGET CHAMBER, 180 SPECTORMETER MAGNET, TURNTABLE”

Builit in 1950s and used till the mid 1970s within the Physics Department used in Melbourne. John Rouse and David Caro was involved in the construction.Black and white photo of cyclotron (nuclear physics accelerator): internal target & filament system.Sticky typed labels on back from top and left to right: “FILAMENT STEM, INTERNAL TARGET STEM”