stephenbrooks.org : FFAG Tour

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FFAG Tour

KEK have one of the few operating proton FFAG-type accelerators in the world and it is currently the one with the highest energy: 150MeV.

- - - [Documents] - - -

File	Comment
20060127(001).jpg	Looking into the ring from the outside through a gap between the magnets.
20060127(002).jpg	In order to get inside the ring we have to cross this filmsy aluminium ladder. This is made more difficult by the fact the entire thing is now inside a concrete block structure for radiation shielding and the ceiling is not particularly high. The one taking the assault course here is Mike Zisman, leader of the scoping study accelerator working group.
20060127(003).jpg	View from on top of that ladder. The strip lights unfortunately dazzle my camera, but below you can see the cyclotron and injection line with four of the (ten?) magnets of the ring behind. I can't work out whether the slight blurring in this picture was due to my hand or the ladder shaking.
20060127(004).jpg	That injection line again, featuring a quadrupole triplet and what I presume to be a load of diagnostics.
20060127(005).jpg	Cyclotron on the right, water cooling splitter on the left.
20060127(006).jpg	Apparently one of the parts of the accelerator got warmer than expected and needed a bit of additional cooling. Air cooling, in this case, was added with a bunch of 12" fans.
20060127(007).jpg	The light-coloured pipes have water flowing in them, which goes out to cool various coils and returns to this splitter again.
20060127(008).jpg	Pipes. Pressure gauge. Valves.
20060127(009).jpg	So we went around the outside of the ring again and had to step over this wire trench. They seem to have enough wires.
20060127(010).jpg	Extracted beam line (also with a quadrupole triplet on it). The main ring bends away behind.
20060127(011).jpg	This is closer to the magnet where the extracted line branches out. I've forgotten exactly what that handle does. I think it seals off the vacuum of the main ring from the extraction line.
20060127(012).jpg	Beam dump. This is a research machine, they don't actually do anything with the extracted beam other than measure it and then dispose of it in this large (and now radioactive) block of iron.
20060127(013).jpg	I was a little concerned for my credit cards when I saw this sign but I assume it only applies when the machine is switched on, in which case people really shouldn't be going inside there anyway (let alone with scissors).
20060127(014).jpg	I knew it wasn't switched on because this handy "FFAG ON" sign wasn't lit.

File

Comment

20060127(001).jpg

Looking into the ring from the outside through a gap between the magnets.

20060127(002).jpg

In order to get inside the ring we have to cross this filmsy aluminium ladder. This is made more difficult by the fact the entire thing is now inside a concrete block structure for radiation shielding and the ceiling is not particularly high. The one taking the assault course here is Mike Zisman, leader of the scoping study accelerator working group.

20060127(003).jpg

View from on top of that ladder. The strip lights unfortunately dazzle my camera, but below you can see the cyclotron and injection line with four of the (ten?) magnets of the ring behind. I can't work out whether the slight blurring in this picture was due to my hand or the ladder shaking.

20060127(004).jpg

That injection line again, featuring a quadrupole triplet and what I presume to be a load of diagnostics.

20060127(005).jpg

Cyclotron on the right, water cooling splitter on the left.

20060127(006).jpg

Apparently one of the parts of the accelerator got warmer than expected and needed a bit of additional cooling. Air cooling, in this case, was added with a bunch of 12" fans.

20060127(007).jpg

The light-coloured pipes have water flowing in them, which goes out to cool various coils and returns to this splitter again.

20060127(008).jpg

Pipes. Pressure gauge. Valves.

20060127(009).jpg

So we went around the outside of the ring again and had to step over this wire trench. They seem to have enough wires.

20060127(010).jpg

Extracted beam line (also with a quadrupole triplet on it). The main ring bends away behind.

20060127(011).jpg

This is closer to the magnet where the extracted line branches out. I've forgotten exactly what that handle does. I think it seals off the vacuum of the main ring from the extraction line.

20060127(012).jpg

Beam dump. This is a research machine, they don't actually do anything with the extracted beam other than measure it and then dispose of it in this large (and now radioactive) block of iron.

20060127(013).jpg

I was a little concerned for my credit cards when I saw this sign but I assume it only applies when the machine is switched on, in which case people really shouldn't be going inside there anyway (let alone with scissors).

20060127(014).jpg

I knew it wasn't switched on because this handy "FFAG ON" sign wasn't lit.