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Re: Jordan's Thesis

Dear colleagues.

I have read Jordan's thesis. It is good analysis. My congratulations for him!
As to a differences in energy spectra for natural hydrogen runs, the only thing that
occurs, it is possible, various selection of muons. I do not know as Jordan selected
muons in an anode plane. If it as well as I does not use the information from
strips, without additional selection, a plenty of events from muon capture on
materials can be registered. The spectrum of these events is very similar to a
spectrum from capture on nitrogen.
In superpure hydrogen this background is rather significant. To regect unparallel
muons in an anode plane I use total energy of three last signals from stopped muon.
This value contains the information about muon track.

Besides at the analysis of last data I have admitted discrepancy in calibration, I
used the dE/dx data for Ò=15Ñ. In last run we used dehumidifier and temperature was
about 30Ñ. For these conditions calibration of energy is 1ñh=0,59keV. Thus the left
peak in a energy spectrum for natural hydrogen runs can be identified as peak of He3
from pd-fusion that opens additional opportunities for definition of deuterium
concentrationin superpure protium.

With best regards,

Oleg

> Dear MuCAP'erls
>
> Please note that Jordan's undergrad thesis
> on MuCAP FADC impurity analysis is now available
> to download at:
>
> http://weak0.physics.berkeley.edu/weakint/research/muons/papers/JMeyer_Thesis.pdf
>
>
>
>
> 			best regards
>
> 				Bernhard

-- 
Oleg E. Maev
Scientific worker
High Energy Physics Department (HEPD)
Petersburg Nuclear Physics Institute (PNPI) - http://www.pnpi.spb.ru/
Tel.: +7(81271)46191
Fax.: +7(81271)30010
Post Address: Petersburg Nuclear Physics Institute (PNPI),
Orlova Rosha 1, Gatchina,
Leningrad district, 188300, Russia