Carlson PDF

7/24/2019 Carlson PDF

1/22

Presented by Lane Carlson1

M. Tillack1, T. Lorentz1, J. Spalding1, D.Turnbull1

N. le!ander", #. $lint", D. #oodin", %. Petzoldt"&1'CSD, "#eneral to(ics)

HAPL Project ReviewPPPL, Princeton, NJDecember 12-13, 2006

Progress on Trget Trc!ing" #nggement Demonstrtion


2/22

$mni%resent Trget #nggementRe&'irement

A(( in)ivi)'( trc!ing n) enggementcom%onents *ve been o%erte) s'ccess+'((

A(( com%onents necessr +or glint*only*it-on-t*e-+( )emo *ve been integrte)

n) re o%ertion(

.in( /e Re&'irement

20 m enggement cc'rc in ,,45 t 20 m 10-65


3/22

7'rrent tb(eto% trget enggement )emo iscom%(ete wit* one sim'(te) )river bem

crossingsensorsC2C3C1pulsed glintlaser (1064 nm)alignment &driver beam(635 nm)

verificationcamera

retroreflectorcoincidencesensor

Poissonspotcamera

faststeeringmirror

focusing mirror

wedgeddichroic mirrorchambercenterPoisson (632 nm) &fringe counting(1540 nm) beams

fringecountermicrolensarray

collimatinglensdroptower

Glint lasernow in

operation

Poisson & fringecounting systems not

used in glint-only demo


4/22

Hit-on-t*e-+( e%eriment *s)emonstrte) enggement on moving trget

158%)te time o+ Poisson s%ot centroi)ing (gorit*m )own +rom10 ms to 39 ms in so+twre

25.ringes o++ +((ing trget co'nte) over 3 mm

358sing crossing sensors, t*e timing " triggering sstemtriggers (( necessr (sers:com%onents on-t*e-+(

;5#ngge) moving trgets wit* sim'(te) )river bem b 'sing

t*e g(int ret'rn sign( to steer +st steering mirror

95


5/22

A rnge o+ trc!ing:enggement scenriosc(( +or )i++erent re&'irements

='b sstem +!a(ple 1

'ltra-.=>

+!a(ple "

.=>

Ac*ieve)(1)

Target Injector (prob.TBD)

1 mm 5 mm 4 mm

Poisson spotcentroiding (x,position)

!"# 1$$ %m, 5ms &pdate

time

5 %m,'.5 ms

ringe co&nting (position)

!"# 1$$ %m 5 %m o*er5 mm

+rossing sensors (erocrossing, *eocitprediction)

$.- %s,

-$ %m

1$ %s, 1

mm

45 %m

int"coincidencesensor

1$ %m 1$ %m 1$ %m

/0 pointing precision 5 %m, 2ms

5 %m, 2ms

3 %m, 2%s

+!a(ple 1-no in-c*mbergs, g(int %rovi)es +in(

mirror steering

+!a(ple "- in-+(ig*t, %re-steering corrections b

Poisson, +ringe co'nter


6/22

?1 Trnsverse Trget

Trc!ing 8sing Poisson =%ot7entroi)

(1540 nm) beams

camera


7/22

Re)'ce) region o+ interest R$@5tec*ni&'e +'rt*er im%roves '%)te time

;mm s%*ere ontrns(tion

stge

8%)te time re)'ce) +rom 10 ms to 39 ms b

im%(ementing )nmic R$@B in so+twre

N'mber o+ %ie(s to %rocess is re)'ce) +rom 30C! to

10!

4 mm6 mmPoisson spotreducedregion of

interest

CMOSsensor

T*e sm((er R$@ ss'mes t*etrget wi(( not move more

t*n +ew %ie(s between

+rmes

R$@ is rec(c'(te) ec*+rme to +o((ow t*e Poisson

s%ot centroi)

30x lesspixels


8/22

New centroi)ing (gorit*m im%(ements)nmic R$@

2) Brig6tness 7 contrast adj. ') T6res6od pixes abo*e a certain*a&e

4) 8emo*e border objects1) +apt&re image

Trget %osition '%)tetime./ (s &/ 0( 1)

Closing in on goal of 1-2 msClosing in on goal of 1-2 ms

3) Dnamic 89I dra:n

-) Pixes o&tside 89Iexc&ded

5) Partices iter, centroidcomp&ted

;) /&bse


9/22

?2 Ai( Trget Trc!ing

8sing @nter+erometic .ringe7o'ntingleg

fringe coucounter


10/22

=imi(r intensities

.ringe co'nting *s been )emonstrte) over3 mm

Lower-noise %*oto-)etector

Hig*er-%ower (ser 60 m5

EF .ringes o++ allingtrget co'nte) over

3 mm

Mini drop tower setup

photo diodefringe counterDopplerreflectionIR telecomlaser

stationaryreferenceleg

Target releasing fromvacuum needle

Free-falling target

Signal processingreuired to o!taincounta!le signal

" ms#div

$0 %s#div

time

" #div


11/22

?3 7rossing =ensors "

Ai( PositionPre)ictioncrossingsensorsC2C3C1droptower


12/22

7rossing sensors " re(-time o%ertingsstem com%'te %re)icte) trget(oction on*t2e*lyLst time #stb(is*e) crossing sensors to be s'++icient(

%recise ;9 m 1

5 to trigger g(int (ser

$verview o+ Timing =e&'ence

Timing se&'ence initite) b trget crossing 71

72 crossing ie()s trget ve(ocit


13/22

?; (int =stem

lens

laser (1064driver beasensor

steeringdichroic m

array


14/22

New ve 39 mJ, 106; nm g(int(ser

A(( necessr com%onents *ve beenintegrte) +or g(int-on( trgetenggement )emo

$%tics @n >otion +ststeering mirror

lensl li

laser (1064lidriver beaiisensor

steering

i

i idichroic mii larraylli i

=im'(te) we)ge))ic*roic mirror

P'(se) )io)e (sersim'(te) )river5

(int (ser -+in( com%onent

o+ *it-on-t*e-+()emo *s been

inst((e)

i i i


15/22

e)ge) )ic*roic mirror com%enstes +org(int:c*mber center o++set

trget t

g(int(oction


16/22

e *ve engge) moving trgets wit* sim'(te) )river bem

Trgets +'((engge) 20I o+t*e time in

190 mveri+iction

rnge5

Lst time we 'se) si(ulatedg(int ret'rn

+rom stationarytrget to steer mirror Now, we *ve 'se) t*e re(B g(int ret'rn

sign( +rom (o3ingtrget 9 m:s5 to steer

sim'(te) )river bem to engge t*e trget

't )oes not meet t*e20 m s%ec etG=n%s*ots o+ engge) trgets

'"0 m )im veri+iction bem(ets

(0) (0)

$0)

'"0 %mverification

range

outside range outside range

i


17/22

#++ort to im%rove enggement cc'rc to 20m m'st ))ress " minimi4e (( 'ncertinties

#rrors " 'ncertinties +rom ever

s'bsstem contrib'te to enggementcc'rc

e re wor!ing to 'n)erstn) errors

n) to ))ress ec* one

= Air +('ct'tions, sensor noise,

bn)wi)t* (imittions, res%onse timesG

P=D sign( wit* gro'n)-(oo%ing

#rrtic 90 m< sign( trns(tes

to signi+icnt mirror steeringK

100s microns5

>ost do(inant'ncertint so +r is

)eci%*ering t*e g(int ret'rn on P=DG

*rror contri!utions to engagementaccuracy+

-

,eading glint returnPS./ a!iew1 2'00s %m-4ir fluctuations 2$0 %m-erification camera 2'$ %m-Mirror pointing 25 %m

Reso(ve) b %('gging ((

e(ectric( com%onents into

sme circ'it

i i i


18/22

(int ret'rn is 'se) to m!e one +in(steering mirror correction )e%en)ingon P=D re)ing (int ret'rn on P=D gives trgets +in( %osition

Lb M-is100 s:)iv

@nconsistent vo(tge

re)ings gross( n)+(se( steer t*e mirror

2


19/22

Pe!-*o() circ'it %ic!s o++ P=Dvo(tge more consistent( t*nso+twre Pe!-*o() circ'it *o()s t*e %e! vo(tge 'nti( Lbore wor! m'st be

)one on g(int ret'rn

c*rcteri4tion,

P=D res%onse,

error:noise

re)'ction

Rise time m (so in+('ence re)ing

consistenc

2


20/22

?9 #nggement


21/22

No trget Trget o++set to t*e rig*t 100 mTrget e&'(( ec(i%sing bem(ets

A%%(et %ost-%rocesses sn%s*ot toveri+ trget enggement cc'rc

A%%(et com%'tes (ig*t centroi) o+

obsc're) n) 'n-obsc're) bem(ets

Reso('tion o+ 6 m, 190 m rnge

target

PS.

!eamlets

imginr trget s*)ow


22/22

='mmr o+ %rogress " %(ns

?1 >oving trget engge) b sim'(te) )river bem

?2 Trnsverse Trc!ing =stem 8sing Poisson =%otProgress- 6(pro3ed update ti(e to ./ (s using dyna(ic %76Plans- 6(ple(ent into syste( to 2elp pre*steer (irror

3 Ai( Trc!ing " Triggering Pre)ictionProgress- $ait2ully triggering glint, si(ulated dri3er bea( 8

3eriication ca(era. lso, ringes o (o3ing targetcounted o3er ((

?; (int =stemProgress- #linted target 8 steered $SM to engage in*lig2t target

Plans- 9etter c2aracterize glint return 8 PSD response to (eet "40( goal

/Trget #nggement

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