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Natural Science Forum / Physics / Optics / December 2008To buy a SEM
How much costs a cheap SEM for a private customer. This microscope should be able to supply 10.000 magnifications at least. >How much costs a cheap SEM for a private customer. This microscope >should be able to supply 10.000 magnifications at least. $2200USD Kiss French. Drink California. gary at gaugler dot com >How much costs a cheap SEM for a private customer. This microscope >should be able to supply 10.000 magnifications at least. Oh...plus crating and shipping and un-crating and setup. Add another $2,700USD. So, $2200 makes the total $4900USD. Kiss French. Drink California. gary at gaugler dot com >>How much costs a cheap SEM for a private customer. This microscope >>should be able to supply 10.000 magnifications at least. [quoted text clipped - 7 lines] > >gary at gaugler dot com Are you speaking of a new SEM microscope? Have you some Internet addresses to see it? George >>>How much costs a cheap SEM for a private customer. This microscope >>>should be able to supply 10.000 magnifications at least. [quoted text clipped - 12 lines] > >George you only said cheap SEM--no indication of new or used. There are new small table top SEMs being made that cost in the $75,000USD range. Older SEMs can produce nice 10KX images and are in the $5,000USD price range. However, in any case and IMO, you are not asking the right set of questions for choosing a SEM. Kiss French. Drink California. gary at gaugler dot com >>>>How much costs a cheap SEM for a private customer. This microscope >>>>should be able to supply 10.000 magnifications at least. [quoted text clipped - 19 lines] >the $5,000USD price range. However, in any case and IMO, you are not >asking the right set of questions for choosing a SEM. This can be the right occasion! Which could be the right questions?:-) The cost of a SEM will also depend on your education. If you are an experimental physicist or engineer and perhaps even has taken a course in electron microscopy and one in vacuum techniques you can go for an old used SEM from the eighties. It will certainly help if you can inspect it while it's in operation and assist in dismantling it. Make sure to take pictures and mark all cables! If you live within 500 km you can rent a small truck with a z-lift in the back. The microscope section will probably need some travel bolts so the delicate anti vibration system wont be damaged. Having the above mentioned education takes away the fear of facing a high vacuum system and complex electronics. To clean, maintain and operate it you don't need this expertise knowledge. It just takes some hands on experience. If you know someone who has this (unless you have this experience yourself) you could go for it. There is always a number of SEMs on ebay. Our first SEM, a JEOL T200, we bought for $2 000 including a gold sputter (which is also very useful). We drove 300 km in a van and picked it up ourselves. The T200 is a fairly compact SEM from the early eighties. Our second SEM was an JEOL T330 bought unseen on ebay. Electronics was a mess and we haven't got it working yet. $1000 scope and $1000 transport. Our third SEM, a JEOL 35C, we got for free from a nearby high school. It is twice as large as the T200, so we rented a small truck with a lift and got some help in getting it on and off the truck. This one we dismantled and marked all cables. The T200 had them all integrated in one piece. The T330 came in two pieces. So if you find within range you can save some money on the transport. Make sure you get all the equipment, tools, samples, spare parts and documentation, especially operation and maintenance. To look at bio samples it is very useful to have a gold sputter since the specimen needs to be conductive. If you are lucky the seller may have one as well. We paid $300 for our and a new costs much, much more. Erik >>>>>How much costs a cheap SEM for a private customer. This microscope >>>>>should be able to supply 10.000 magnifications at least. [quoted text clipped - 21 lines] > >This can be the right occasion! Which could be the right questions?:-) See discussion thread in the group with bireroz...@gmail.com regarding new SEM. His focus was on a new high rez unit. Are you looking for a used unit or a new unit? What space limitation do you have? What power do you have (V and A)? Ordell's points are good ones. Can you address these at this time? vacuum experience is quite important but can be learned over time. Kiss French. Drink California. gary at gaugler dot com > >>>>>How much costs a cheap SEM for a private customer. This microscope > >>>>>should be able to supply 10.000 magnifications at least. [quoted text clipped - 33 lines] > > gary at gaugler dot com Ordell is correct. You can get an old JEOL 35 for about $2500 but be prepared to keep her running. You will also need a water chiller but you can get by with running water through a large ice chest that you fill with water and ice. The JEOL T300 is a better scope for a beginner because it is easier to maintain. I have one for sale for maybe $2000 but it needs some work. It works but has bad astigmatism. Getting someone to work on an old SEM is problematic. We have had various companies come to fix our old JEOL 35 C, JEOL 35CF and T300 and have found that most of these people are worthless and cost a lot. We even keep another third JEOL 35 just for parts. For a real adventure, get an old ETEC Autoscan. They are indestructible but ancient. BTW, SEM filaments will cost about $25 each re-tipped meaning you exchange blown ones for re-tipped ones. iojjjjjjjjjjOn Tue, 02 Dec 2008 15:04:12 -0800, Gary G <see.signature@bottom> wrote: >>>you only said cheap SEM--no indication of new or used. >>> [quoted text clipped - 12 lines] >Ordell's points are good ones. Can you address these at this time? >vacuum experience is quite important but can be learned over time. I see many queries about the "best" SEM. when one works through this, it boils down to the real guts of the need. I am thinking of writing SOWs/SONs for SEMs that would cover the thermionmic plus FE. It might include a check list of items that might be available and useful. Kiss French. Drink California. gary at gaugler dot com |
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