15-foot bubble chamber characteristics Page: 3 of 33
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. . --a $:2t2r_ rat- for siEi'lar juaice a,; . .s th I. it. Inv tant t.
:t . ' :'; .-:2t to r:fln 15-o-t I11'r tItrs 3-" ,i 1w. 5- r in,; c~fu
.p t. -e sbo.gt a factor o' 2 lont-r/<vant for th lY. I'ot ouf ihi
.:: is Air to taliit , rre po-its on 15-foot track:.
..t.::4; Fe-ilab uses the high-pzucision 1317-1 scan tablcn, scanning tan
: scanning rachirs w:ith miner rtdlfications. For exriple,
- :.injed the ratification of their rachinres to 60. Cra:-try prq;r:rr;i
_e r.- Fe:rilab, Aronra, Brookhaven, or It-rkeley.
5. The --;e ds-aonlfication limits the observation or lovt enr'y poti~rnn.
Ft, "'.-;rr;" events the 15-foot chamber has 4 times a:; mark, observed "3 pronpy"
Fa :he r 7"a.-_ r.
5. 12 reas.rir errors or shirt prutors are izr.;:tut to an exp'rh:nt., that
eper.:ent sh71ld use "hadron lenses" that have a deoagnitication or 30. 'Aies+
-rsas ^r:e -been discussed in the past at Ioble Ch:nrisbr -orkntops anl are icasi-
b-e to obtr.'.. The cost is about $70K and film costs double.
T. The even' rate in the 15' is approxirately 4.4 more eventn/picturr fov
s:-lso'e :rtrarnts. The 33" reuains this advantage by multlpdalsn.
Se :: lficu t i a
':..r; this first year of expcrle-e with 15' ch;bar film, saxe dilfieuities
h: bee:n .ncoater d which ry-ae the fain analysis less routine than in a r II
;-bor. LVny of the probl-es are sirflar to the "gz-owin, ilno" of ot.hr" chaeters
LI sh.Lld ba overcor: withirtthe mxt year.
l.) Tne ge-retry porasn has difficulty reconstrucinR tracks iriich
are steeper than 55'.
2.) As is clear f(ru Fijurcs 2 and 3, Blobal dist.orLisus Panvv tut ltnv -
entirely mpped- any by the optical distortion paraneturiat ion.
3.) A lar ,e quantity or film exposed thus far ia or sueh par plaai y
* car-ered to the "best" 15' chamber film, that nsnd-autratr
=asurerent (SX4) may not be possible on lare parts of the film.
NFutherrrre, manual analysis rates are slower on this fibm than on
t'a "beat" film.4.) Aultourh ,'" does work Iu a road-guldurce rn'- on "zori" a:d
"'est" 15' charbrr film, it waa necenrary tirst to j:.t tr.e Cv
sco' size 1est than 10. Users w-ro intend to use ClIr devices on
15' film may need to consider runrr ; the chamber with larger
babble size..,
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Huson, F. R. 15-foot bubble chamber characteristics, article, September 15, 1975; Batavia, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc864334/m1/3/: accessed March 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.