RE: New Detector

[John Jacobus <crispy_bird@YAHOO.COM>]

I believe you could get by with a Dewer for liquid He

in your pocket.  I would note that the prototypes have

not yet been built.



--- "Doty, Patrick" <fpdoty@SANDIA.GOV> wrote:

> This sounds neat, but Labov's transition edge

> sensors are very small and

> must operate very cold.  Their claim to fame is

> extremely good energy

> resolution, which translates to sensitivity with

> respect to discriminating

> closely spaced gamma lines from background.  Fewer

> photopeak counts are

> therefore needed to identify a radioisotope, but the

> total interaction

> probability and the peak-to-compton remain very

> small.  Also, I don't know

> if the helium refrigerator needed to cool the

> devices are included in the

> cell phone.

>  . . .





=====

-- John

John Jacobus, MS

Certified Health Physicist

e-mail:  crispy_bird@yahoo.com



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