Rick Van Kooten, Indiana Univ., FNAL Users Meeting, HEPAP Session, June 27, 2000

Transcription

1 HEACC 2001 Eric Colby Stanford Linear Accelerator Center 2575 Sand Hill Road MS 07 Menlo Park, CA

2 9D=J FDOIE?I GKAIJE I JEL=JA JDA ANJ E A=H + E@AH Rick Van Kooten, Indiana Univ., FNAL Users Meeting, HEPAP Session, June 27, 2000

3 9D=J EI B BKJKHA +I +A JAH B =II A AHCO # 6A8 4A=@E O ANJA IE> A J 6A8 # 6A8 K E IEJO!"? I A=H JAH 1?HA=IE C MEJD γ C JAH

4 2H CHAII E? EIE A AHCEAI D=I I MA@? IE@AH=> O E JDA Progress in accelerating gradient has slowed Beam quality demands have become steadily more stringent M. Tigner, Does Accelerator-Based Particle Physics Have a Future?, in Physics Today, January, 2001.

5 9D=J =HA JDA AO 1IIKAI B H ANJ /A AH=JE E A=H + E@AHI 1 FH LE C =??A AH=JE CH=@EA J,ALA FE C A A I KH?AI =J?DA@ J JDA =??A AH=J H JA?D EGKA KIA@,ALA FE IJE?I B H LAHO ID HJ M?D=HCA M A EJJ=?A >A= I EJEC=JE C A KJE BH M= = E? EI= EC A JI,ALA FE C = HA? F=?J BE = B?KI

6 AI = # 6A8 )??A AH=J H E A M 6-5 ) #! /0 OIJH /H=@EA J # A8 " A8 A CJD N # N '" & E E?=LEJEAI 1 + # % H " /0 H OIJH /H=@EA J $# A8 &% A8 A CJD N # N!% ' % E E?=LEJEAI 8-22 " /0 H OIJH /H=@EA J A8 A CJD N! % E E?=LEJEAI + 1+! /0 JM >A= =??A AH=J H /H=@EA J # 8 A8 A CJD N! N #! E E?=LEJEAI

7 9D=J =HA JDA 5AHE KI,EBBE?K JEAI E EJE C )??A AH=JE C /H=@EA J,EHA?J 5E C A LI K JE?A IJHK?JKHA M 5KHB=?A A=H IKHB=?A =JAHE= FH FAHJEAI /A A EIIE M F =I = AH IE 5KHB=?A? A= E AII IK>IKHB=?A F=HJE? AI CH=E > E? KIE I =JAHE= IJHA CJD >J=E E C DECD A IEJEAI 6H= IEA J IKHB=?A DA=JE C B IJHK?JKHAI 0ECD BHAGKA?O I KH?AI 5ALAHA M= 2 MAH I KH?A?=F=>E EJEAI

8 F E?=JE I B H E?H M=LA =??A AH=J HI 2 MAH I KH?AI OIJH I >A= I D=LA E EJA@ =H AJI IA =LE=JE =??A AH=J H FDOIE?I )??A AH=JE C IJHK?JKHAI =HA =@A >O = KB=?JKHE C JA?D EGKAI JD=J ANDE>EJ BAM A? EAI B I?= A 1J EI JDA ANJA IE JA?D CO 6DA JA?D CO EI J =JJH=?JE C >HECDJ O K C

9 9D=J J EI F IIE> A E = H C E?H M=LA?=LEJO 5 A DE JI BJDA = IMAH 5E C A +A 6AIJ 4AIK JI? FFAH =JIK J AJ = ''!!! /8 E IE C A & /0?=LEJO =KHA J AJ =!# /8 E 6 " /0?=LEJO 9KA I?D AJ = #! /8 E IE C A! /0?=LEJO K JE +A 6AIJ 4AIK JI? FFAH 0=E I AJ = ## % /8 =J % /0 MA AJ = $% /8 $?A I =J " / ''' # /8 #?A I =J! /0 Factor-of-6 Discrepancy

10 0 M?= J>AE FH =JAHE= 5?EA?A C 4. CH=@EA JI D=LA E FH =JE?= O LAH J HEC H KI /A AJHO 1 FKHEJO? JH 444 2H?AII? JH?DA EIJHO L=?KK BEHE C + A= E AII + + 6H=LA E C LI C M=LA IJHK?JKHAI

11 )?DEALE C 0ECDAH /H=@EA JI -BBE?EA J O 0ECDAH A IEJO E IJHK?JKHAI 0ECDAH B KA?A I KH?AI - J F λ 0ECDAH 3 IJHK?JKHAI AJ= E? HAI =J HI λ # *KJ DECDAH BHAGKA?EAI E F O HA IALAHA M= ABBA?JI λ J λ MAH >K?D?D=HCA 0ECDAH FK IA HAFAJEJE H=JAI B HAF λ J λ 0 BHAA IJHK?JKHAI 6ECDJAH = EC A J J AH=?AI HA AN JE? B=>HE?=JE F IEJE E C ) I C =FFH FHE=JA F MAH I KH?AI EI J A=IO

12 -L= K=JE C 2 MAH 5 KH?AI *O -BBE?EA?O E?H M=LA =J HI % OIJH I $# 2K IA? FHAII HI &# =IAHI + 6E ;8 " " $ ;>.E>AH % 6A 5A =J µ WALL-PLUG TO PHOTONS NET: ~40% WALL-PLUG TO PHOTONS

13 2 MAH 5 KH?AI

14 = KB=?JKH=>E EJO 100 Å 1000 Å 1 µm 10 µm 100 µm 1 mm 1 cm 10 cm CONVENTIONAL MACHINING SINGLE POINT DIAMOND MACHINING/HIGH SPEED CNC MACHINING ELECTRO-DISCHARGE MACHINING LIGA/DEEP X-RAY LITHOGRAPHY SILICON MICROMACHINING 300 THz 30 THz 3 THz 0.3 THz 30 GHz 3 GHz LASERS TBAs FELs (Ubitrons) High Peak Power Amplifiers 0.8 µm, Ti:Sapphire Laser 1 khz 1 µm, Fiber Laser, 10 MW 10 µm CO 2, 1 GW, Laser 94 GHz, 10 MW, GK, 180 Hz 29.9 GHz, 1000 MW/m, TBA TUBES 17.1 GHz, 200 MW, K, 4 Hz 11.4 GHz, 75 MW, K, 120 Hz 5.7 GHz, 54 MW, K, 10 Hz 2.8 GHz, 65 MW, K, 120 Hz 1.3 GHz, 2000 MW, GMBK, 10 Hz

15 2K 0A=JE C X-band TE 011 Test Cavity showing removed end cap. (SLAC) Close up of end cap after T~120 K 55x10 6 pulses

16 + KF E C A?D= EI I + A?JHE? E?H M=LA IJHK?JKHAI 2 =I = M= =??A AH=JE 8=?KK =IAH =??A AH=JE IJHK?JKHAI )?JELA IJHK?JKHAI

17 JDAH 5JHK?JKHAI X-band Photonic Band Gap Structure UCSD/SLAC W-band Zipper Structure (EDM) UCSD/SLAC W-band 108 Cell Constant Gradient Structure (LIGA), Argonne National Lab Adiabatically Stamped W-band RF Gun (half) SLAC W-Band Side-Coupled π/2 Structure (LIGA) T.U. Berlin

18 ,EA A?JHE? 5JHK?JKHAI J. Power et al, Multimode Dielectric Wakefield Experiment, in Proc. AAC2000, Santa Fe, NM, (2000). Marshall, Fang, Hirshfield, Park, The Wake Field Resonator, in proc. AAC2000, Santa Fe, NM, (2000).