Show 0"!!!!!1' where 'tiller's °ace toiled deep in a moulitain scientists are making cosmic radiation history Ellunsive rfl AN INTRICATE cosmic ray built 2000 feet laboratory urderground in an old silver mine in Park City is giving the world of high energy physics some astounding new clues about one of the least understood most mysterious forces of nature the attention of atomic theorists all over the world "If our findings are confirmed by other experiments now under way the existing theories of how high energy particles are produced in the earth's atmoto be will have sphere Hints of a whole new previously unobserved process of cosmic radiation can be found in the initial observations of the complex experiment changed" says Dr Jack W Keuffel director of the project THE labo- UNDERGROUND ratory was built by physicists attracting ' k : 'I Or - k4 I 0 ::: " i di " r) lir -- - H:-':- Act:o :: :' 9"::!':::: :' ::: 44 siti---- ii:: ': 400 -— 7 7 4 I i : 1 : f - : 1 -0 ' ::::: y" f:::: i::::: ' A ''' :: ::: ' - ' 3::'"' q iV 4k J It ('' - :' It ' ' 7r $:' ' '3' :! ' i :: 40:?ti: ": ' '''' - ''i' :' &' 1Iff 4t: ?4777!7 ' 1 ' ' 4: 1 il s' f- : -- k:' ' ':'s 1- - i'': iv!:N:g4iik-- 't ' Alan B Larsen front and Joseph Watts (above) In the underground laboratory are making adjustments and repairs to some of the intricate equipment used in ditveling neutrinos and other particles At the right is a general view of the lab's main room The neutrinos and other particles pass through cylinders at the left and control board at the right records their passage and n walls and nets position Note the rough-liused to pre ent possible falling rocks sub-atomi- c e N 4 t' ' g ' 0 1 l't ti l l It 1 A3 1' - "1--- ': rt: i ' ' I : 'VI I 1 11! ' iflu it — 4 ' tr r:0714 I I ' - - ( ii -- 1- v ' t t- k A ” :"m''' ::'''''":::''''''''i'''''' 7 -- k ill(-- - l''' s i - - t i - ' tz t t- - 14: " ' 4 " 41 'm :)' ft:'4 - ' i t f''''''''4 - 4' - - ' '11141 ' - - ::14:::6:1 ''' '''"" t1'' - 4 4 4- ' i A t:11-91- 75 ' '':1!' le f p1 t: '117L 1 k:::::0t) 1 i:rri--73- - 1fo:A):i t 11' :'::7 ic' 41?k3''e rI-s-- it v Algite1 '1' '''" i :Z 1111"'L i '4 r!!?4771''' 'i' ?4 4 '' l'r ' - i 1 -?-: ':-- : i ::1'4L-701--- tt '67"'i ie:' 7 k'1(v '' fli'''''''' 'i4arizv''' Azit4! ILLIuitii:1 :k::ii'i'-ko'!1- 1' t 'W''' ' - 00 F ':17 V r : '''!!"1-:::- 1f 1?4 C rt1111a111"- sex ' A1 tco s1 'il' 0 :1Z''i:::4-- 4V34! 'Ll!'0: ' w 4 0 ':'':'4' ':: :‘ - 1''-- -i ki ' ' ' e tOP'J :::t:f I ' 1:::': ' ' ) i' C:' :)1 T ' ot r L :itg ' 4:4' - - i'':::t ::'!:''!t 7' 4 :': jug 0'f-:'-' 1 é 4::':11404 :: I ::: ' ' 4 74 4 t ' i 'ts ' & :i:1 IA ' :- 4 ::' 4 Ek: 1-1 : ?i '4 t ''':'::'' vs-At- 4'' ' pa '': ? ts 7‘-: t:1Aly-:::::"- :: il '' f ' ( t 4 1I' - ''' 4 'fe ) i:k sk '' : : ' t '::-'''''s:-- ' ':' '11: 1'4 it X 1‘ '1'(: - 'tto s''' ::t i i'f'c'1 FR 14 :::4: 0 ? '' 4 :' toe :: - Ii !mio i::: I! t l''' ' '' 1- I ' 5 't t '''t :::4:AtKH:::::"::::::0 " 1:11 :1 :“ '''' 'X' v 1!t :: 4'::1I - ti ' ' '4'11:1 ? k A ' si ::''&''''''‘'c14414' ite ': I ':iii::::::::::''t? ti '&::'' :i ' ' ::''!:: !!: ‘ ' qt i4i 41 41Iti ' - i :"" v:: 404 "::':s: '11tt-:?i'- si !:' 4 311 :kik:nt:::t7 4' sf:: 44 '':-'- '3:- :- 41 ' '76' 7 ': 77 1 '''N t 14 '" v 4' 11 °' 17t ' ''':: ' :7: 1111! t: ' -: ''''t '''" - 3 ' g ': ' ''i :7' 4 si:: i ?$- '- : '':: n"'14i s'l' ii1k(ii:751p:A ! i'ir ' "A: :0'Lxp&&4 1 ' l'':' I '::: :p ilii2L'''‘' :NXe ':4' ' - fl' i ' f'X?tA4f : 'i 1 :' i"13 4'A ' '' ' elso4-t- - 01'4' tg1 44' 444a": 4 J ": 41' :: i 1 :1 $ ''::Y::' sub-atomi- On the walls of each tank are plexiglass tubes filled with :!45iit r: - 1:01I g Muons are the main particles detected These are also tiny matter with bits of strong penetrating power but unlike neutrinos they have an electrical charge and can be detected Muons also on rare occasions are produced in the rock by neutrinos Thus those coming up from the other side of the earth are certain to have been created by interactions 113 i a ' - E:::: ) sound-rangin- feet 2000 about rock solid 1 z - 44 pinpoints precise the exact location The particle tracks are reeored on tape for reconstruction in the University's computer system beneath the ski slopes of Park City's Treasure Mountain The chamber was located undergound to filter out unnecessary particles from the surface Inside amid a maze of wires and complex circuitry stand four high concrete tanks filled with water 11 ': c A MICROPHONE then picks up the noise of the spark and one-tim- Dr Keuffel's orginal goal was to detect and learn more about neutrinos tiny bits of subatomic dust that strike the earth pass right through and continue on an endless journey in space But the first data to :: ::::: "34: k1 $ ::: :I g :"? : i gas-fille- THE NEUTRINO CHAMBER is located three miles down the e main old Spiro Tunnel access to the Silver Mng Mine The detector is in a 75000 cubic foot chamber blasted out of weak interactions between atomic particles The least known of these forces — the weak interaction — is the object of the Park City 4:::::ip:: t4-- :7 ::::::414!::-pk:!:!::::::i''- t'4404)V1r7 To understand the purpose of the research one needs to be aware of the four basic forces of the universe — the forces responsible for gravity electromagnetism the binding together of the atomic nucleus and the '':'''''''''''':!::::'::::'''i::':::''f::!!':''':::::::::tf:::!'':::: 0 :m::A:01N:i:-i-- V atomic particle or process that produoes these neutrinos and other high energy particles a high )410 s75'''' ''''1::::ANI0 :::--- When 4 ::: 1:431 7 These collect light energy particle passes through the water It gives off illumination triggering a trail of sparks in 600 adjametal cylinders cent mineral come from the intricate underground detectors has produced evidence of still another highly elusive and mysterious sub- from the University of Utah to measure and record the rain of high energy particles that constantly strike the earth from the atmosphere and from the outer reaches of space 1 )1 4" - Itt I c444 I1 - :: : :i: -''- 4 Mo''1::-At:Zze :::: :!: ::::i::--r7:4- 1 : aitatizeage414 The Salt Lake Tribune I loikie Magazine |