Wow, nice work! I used to work with the exact same model in my university for research. The still had the windows 98 to run the software and everything, which was quite hilarious. The images you can get with this machine (if correctly set up) are remarkable though! Keep on with the nice work! :)
why hillarious? The machine is old, so the pc is old too, though maybe a generation younger than the machine itself. Most likely there is no possibility to simply upgrade anything in that setup. The way I see it the contents of the hard drive of the pc are about as precious as the vacuum hardware to keep it working. And in a similar way to devices with UV eeproms for code and calibration, the first step when you get your hands on it is to backup all that not-entirely-nonvolatile data from eeproms and harddrives.
I have some Hitachi SEMs and JEOLs too. Diff pumps are such power hogs when you consider the heaters and the chillers. Have you ever considered retrofitting a 150 lps Turbo pump? Most of them require only a small fan to cool the bearings. It saves lots of money on the energy bill. Main drawback is the vibration from the rotor but since you're not really going to be able to use a W filament SEM over about 50KX magnification the vibration of a good turbo isn't a problem. A turbo pump is ready to use in just a few minutes.
what type of temperature control do you have in the garage? what type of daily / yearly variations do you have, and how does it affect the operation of the SEM...
I recently just bought a similar SEM ( Hitachi S-650). I’m currently trying to restore it but don’t have a manual and the company can’t provide me with one. I was wondering what pressure the roughing pumps go down to. Also, what was the process for replacing the transformer oil and what type did you use? Great video, thanks!
Hi Sam, This video was quite useful for me. I recently acquired a Hitachi S-4500 SEM from ebay. The SEM is similar to yours in looks but in much worst condition. All the cables connecting the column to the display unit were cut to ship the SEM in two separate shipments. I can not find the service manuals for wiring diagrams. However I found the manual and schematics for S-5200 model, which is very similar. So I am working to patch all the cables. and checkout the circuit boards etc. Hopefully I will see it work day. I do not have a windows 98 computer for the scope but I can use an windows XT laptop. Can you suggest where can i find the application program for SEM control? Thanks. Ram Engira
Nice video ! I recently got a JEOL 6400 (needs some HV supply repair) - are you sure that the sequence of vacuum valve switching is OK ? Plus it's safer to turn on the HV with the saturation pot set at zero and than increase the curent.
Good luck with your SEM. Let me know when you get it running... the valve sequences for each vacuum system operation are listed in the manual (blue book) so I'm pretty confident in the sequence of valves I showed in this video. But be careful because if you screw it up oil from the DPs can get into your chamber. Still not sure why my SEM won't pump down on its own. And yes, that is true about the filament saturation knob.
I had this feeling you'd aquire a SEM. You sure did. Awesome! Impurities testing equipment; ICP-MS, NMR, C/S/? Analyzer? Really... wait... EDS would be more pertinent potentially... no pun intended. Way neat!
I was thinking since your work is more clean room and I'm thinking I'm going to make to work in front of just for soldering and electronics repair (maybe some other microscope work) where I already have an exhaust on a 6" hose. I'm more familiar with for microbiological operations and wanted one when I was younger when we used to grow shiitaki and maitaki mushrooms. Here is an interesting link of a range of designs (I like the tissue culture, though the ghetto is humorous and practical, though not for electronics work I'm thinking) where I was thinking having something with glove box potential for a front cover using latch clamps and maybe sealing up to perform other work with toxic fumes in and be able to control exhaust also. www.qrcodematrix.com/diy-laminar-flow-hood/
Looks like a giant Rube Goldberg machine. This doesn't look like something you can get working by reading a manual. How small can it go? Can you see atoms?
SEM tops out at 1,000,000x mag. STEM can go up to 8,000,000x mag and show columns of atoms. The newest ARM (atomic resolution microscope) can see silicon dumbbells very clearly
I was getting some huge Andromeda Strain vibes when you were zooming in on the tick.
Congratulations with your SEM. I worked almost 30 years with a JEOL 35. Jeol microscopes are very reliable. Martin
Wow, nice work! I used to work with the exact same model in my university for research. The still had the windows 98 to run the software and everything, which was quite hilarious. The images you can get with this machine (if correctly set up) are remarkable though!
Keep on with the nice work! :)
why hillarious? The machine is old, so the pc is old too, though maybe a generation younger than the machine itself. Most likely there is no possibility to simply upgrade anything in that setup. The way I see it the contents of the hard drive of the pc are about as precious as the vacuum hardware to keep it working. And in a similar way to devices with UV eeproms for code and calibration, the first step when you get your hands on it is to backup all that not-entirely-nonvolatile data from eeproms and harddrives.
The start up process is really involved. I can't imagine the original setup process.
It feels like he's starting up a nuclear reactor, not a microscope
You can also tilt the sample towards the SED. This will allow the spot size zero to resolve the best S/N
I am so jealous. Your setup is amazing..
Wow. I have a SEM and I love it. Thanks for the video
Incredible beautiful machine !!
Very impressive work Sam!
+Kent VanderVelden thank you
Great job keeping the WD long to allow the 10x mag, seeing the same thing you just saw with your eyes is VERY hard in an SEM
I have some Hitachi SEMs and JEOLs too. Diff pumps are such power hogs when you consider the heaters and the chillers. Have you ever considered retrofitting a 150 lps Turbo pump? Most of them require only a small fan to cool the bearings. It saves lots of money on the energy bill. Main drawback is the vibration from the rotor but since you're not really going to be able to use a W filament SEM over about 50KX magnification the vibration of a good turbo isn't a problem. A turbo pump is ready to use in just a few minutes.
Uwielbiam taki stuff
Wow, what an awesome machine :)
your camera have the worst autofocus however :(
The big beige keyboard looks interesting. I wonder if has alps switches.
love this!!
what type of temperature control do you have in the garage? what type of daily / yearly variations do you have, and how does it affect the operation of the SEM...
I recently just bought a similar SEM ( Hitachi S-650). I’m currently trying to restore it but don’t have a manual and the company can’t provide me with one. I was wondering what pressure the roughing pumps go down to. Also, what was the process for replacing the transformer oil and what type did you use? Great video, thanks!
Wow. So cool
Go ahead sam.
Hi Sam, This video was quite useful for me. I recently acquired a Hitachi S-4500 SEM from ebay. The SEM is similar to yours in looks but in much worst condition. All the cables connecting the column to the display unit were cut to ship the SEM in two separate shipments. I can not find the service manuals for wiring diagrams. However I found the manual and schematics for S-5200 model, which is very similar. So I am working to patch all the cables. and checkout the circuit boards etc. Hopefully I will see it work day. I do not have a windows 98 computer for the scope but I can use an windows XT laptop. Can you suggest where can i find the application program for SEM control? Thanks. Ram Engira
Nice video ! I recently got a JEOL 6400 (needs some HV supply repair) - are you sure that the sequence of vacuum valve switching is OK ? Plus it's safer to turn on the HV with the saturation pot set at zero and than increase the curent.
Good luck with your SEM. Let me know when you get it running... the valve sequences for each vacuum system operation are listed in the manual (blue book) so I'm pretty confident in the sequence of valves I showed in this video. But be careful because if you screw it up oil from the DPs can get into your chamber. Still not sure why my SEM won't pump down on its own. And yes, that is true about the filament saturation knob.
15:08 lol that "vacuum" gage xD
@sam out of interest, how much was the winning bid for this?
Whoa, how did you figure all that out? do you work in a field using one or did you learn on/about one in school?
+wgm4321 neither haha
👍👍👍👍👍
Just curious, how much did that cost and how much did you spend on it after you bought it?
The Thought Emporium
send me here
Very goood frind, i love electronic but i don't know that should start from where??
Can you help me?
Thank you brother
I had this feeling you'd aquire a SEM. You sure did. Awesome! Impurities testing equipment; ICP-MS, NMR, C/S/? Analyzer? Really... wait... EDS would be more pertinent potentially... no pun intended. Way neat!
I'm not sure, though are laminar flow hoods useful and organization of workflow to prevent contamination beneficial?
Yes, laminar flow hoods are very useful for this kind of work. I'm looking for one...
I was thinking since your work is more clean room and I'm thinking I'm going to make to work in front of just for soldering and electronics repair (maybe some other microscope work) where I already have an exhaust on a 6" hose. I'm more familiar with for microbiological operations and wanted one when I was younger when we used to grow shiitaki and maitaki mushrooms. Here is an interesting link of a range of designs (I like the tissue culture, though the ghetto is humorous and practical, though not for electronics work I'm thinking) where I was thinking having something with glove box potential for a front cover using latch clamps and maybe sealing up to perform other work with toxic fumes in and be able to control exhaust also. www.qrcodematrix.com/diy-laminar-flow-hood/
Tell me about the intended purpose of jeol jsm-6490 LV sem..
Gonna throw in a FIB expansion ?
So, unlike the SEM 6300F, this model uses a tungsten filament as an electron source?
yes
Love to put a scsi bus analyzer between the two to figure out its command set hah.
Is all of this equipment in your Basement? Even though most of this staff is outdated it must be worth if not millions at least hundreds of thousands.
What's price?
Looks like a giant Rube Goldberg machine.
This doesn't look like something you can get working by reading a manual.
How small can it go? Can you see atoms?
SEM tops out at 1,000,000x mag. STEM can go up to 8,000,000x mag and show columns of atoms. The newest ARM (atomic resolution microscope) can see silicon dumbbells very clearly
How much would one of these cost on ebay? >10k?
11 month waiting for more videos.
Very impressive. I sent you a private email with some suggestions.
Received, thanks
Maybe a boll weevil leg
Bro who are financing you
Dude
You're shooting too much kv to the specimens. For imaging 5 kv is more than enough.
You think that was hard? Wait till you try learning to manual focus a camcorder! Makes SEM imaging seem like child's play!