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- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!sun-barr!ames!data.nas.nasa.gov!eagle!lims01.lerc.nasa.gov!edwlt12
- From: edwlt12@lims01.lerc.nasa.gov (MIKE JAMISON)
- Subject: Question for basement physicists
- Message-ID: <25AUG199216450588@lims01.lerc.nasa.gov>
- News-Software: VAX/VMS VNEWS 1.41
- Sender: news@eagle.lerc.nasa.gov
- Nntp-Posting-Host: lims01.lerc.nasa.gov
- Organization: NASA Lewis Research Center
- Date: 25 Aug 1992 16:45 EST
- Lines: 30
-
- Tom Droege's data postings suggest that *something* is going on in his CNF
- cells worth looking at. As I understand it, the radiation detector he's
- using is only measuring a fraction of the total spherical surface (an
- assumption here that any radiation coming from his cell is uniform w.r.t a
- spherical shell surrounding the cell - new tongue twister there :))
- corresponding to the distance between the detector and the CNF cell.
-
- I assume the radiation intensity (here intensity is used in the same way as
- it's used for describing photon intensity) is proportional to 1/d^2, where
- d is the distance between the detector and the cell. To determine the
- total radiation from the cell, one must multiply the counts/unit time by:
-
- 4*pi*d^2/(detector area)
-
- My question is simple: Has anyone performing CNF experiments stuck a cell
- in an ionization chamber? It would seem to me (admittedly I'm lacking in
- high energy physics experience) that using a couple of CCD cameras pointed
- at the chamber, (at 90 degree angles, to remove *any* doubt about the
- neutron source), connected to a computer which is in turn triggered to
- store snapshots of the chamber when some threshold radiation level is
- exceeded, would help to clear some of the mystery up.
-
- I realize I'm talking about thousands of dollars (but *not* millions of
- dollars) worth of equipment. I would think that with a decent amount of
- scavenging, one could reduce that cost by at least an order of magnitude.
-
- This just seems like the next logical step (IMHO) in the CNF saga.
-
-
- Mike Jamison
-