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From: "freshndaire" <fanman@...>
To: "CDV700CLUB" <[email protected]>
Sent: Thursday, April 7, 2022 1:06:23 PM
Subject: Re: [CDV700CLUB] Question and an interesting site for those that modify CDV700s and more.

A bit off my original topic here.? I have a large area diode detector in the collection, nothing to hook it to.? They are commercially available.? I haven't gotten around to doing anything with it unfortunately.? I can't get? to it at the moment.? I'll may post a picture later.? I didn't post my cleaned up Eltronics PR-13 pics because my phone camera has lost the menu to change resolution for some odd reason. I probably disabled too many "sharing features".

? I worked as an X-ray repair tech at my last job.? Medical and Veterinary X-ray at first, then the Medical side split off.? Mostly field portable stuff.? We had a really cool X-ray dosimeter tool that could be configured for different measurement units.? I may have some info on it still in my archives.? It would record the kVp, mAs, and dose from an exposure.? We used it to check the output of the X-ray generators.? The image detectors were basically the reverse of an LCD monitor.? I have some that are delaminating and have image quality issues due to the light not coupling well in the delaminated areas.? it is all at the edges so they are actually still usable.? The took in light in rows and columns.? There was a scintillating sheet married to the detector to capture the light from the exposure.? Getting a good image is somewhat software intensive.? Fun stuff, I loved the technology.? They were just getting into ultrasound when I quit.? I always wore a recording dosimeter and used protective gear.? The dose from a digital image is small, but I sometimes took hundreds of test shots in a day!? Seldom had any recorded dose at the end of the month.

? X-ray generators will tickle a Survey meter, even the portable ones I worked with.? I couldn't get a long enough pulse to for a reading to settle out, but you can get a definite upscale reading.? If I live long enough I will someday hook up a scope and see what I can capture.with a survey meter in a beam path.? The Ion chamber is quick to respond, the metering circuits not so much.? Could be fun.? If I knew another local enthusiast I would have had some motivation to do more with the hobby.? The world is becoming a very lonely place.

? I am glad I shared the info on the Corotron replacement with this topic.? I had been sitting on that planning to do what you guys are doing, but I would have struggled without simulating the circuits.? great work.? I wanted to get it out there in case I get hit by a truck or something.? You guys are doing interesting work, I was always just planning to do a Corotron replacement with low cost and parts count to keep it cheap and simple to build.? You have branched out a bit from that!? There is a Corotron catalog on the logwell site.

? I have been bogged down by my excesses.? I have a large collection of parts from HP and Ericsson surplus and have hit the point where I have so many parts? I can't find what I need and it is easier to buy them.? Stupidly overwhelmed at this point.? I literally have thousands of FETs, some just one, some on reels of 3000!? I have a list of most of what I have, but had not looked up specs on all of them.? Been doing the research and linking FET data sheets to my spreadsheet of parts.? But since I suck at making decisions I now have too many choices to pick from, none are what I thought was going to make the circuit simple.? And I just realized that if I move the parts data all the links will be broken.? Bummer when it comes time to share the list.

Time for a lunch break.

Clay