3 ms·
> I wonder how much those detectors cost... "The team then brought in one of the most sensitive portable detectors on the market, an $80,000 Ortec HPGe Detect
by msbarnett 15y ago
> I wonder how much those detectors cost...
"The team then brought in one of the most sensitive portable detectors on the market, an $80,000 Ortec HPGe Detective DX-100T. Inside the unit, a 1.65-pound chunk of germanium..."
- maaku 15y agoHah! Odd that I remembered it was built with a ~1 1/2 lbs chunk of germanium, but glossed over the price..
- cnvogel 15y agoI have no idea if this is a reasonable price, but the mentioned product is a self-contained measurement system in a ruggedized enclosure with built in computer and software that identifies isotopes automatically. It is marketed to "homeland security" type agencies, so expect it to have quite a sales-margin :-) If you'd want to be on the cheap side, there's a used Ge on eBay for $3k right now, add a HV supply anda suitable ADC card for your PC and you can go recording γ-spectra in no time, possibly on a $5k budget. As you'll have to identify the isotopes yourself, check http://www.inl.gov/gammaray/catalogs/catalogs.shtml http://www.inl.gov/gammaray/catalogs/catalogs.shtml for reference spectra.