DEVELOPING PROCESSING ELECTRONICS FOR BPM PROTOTYPE AT THE AWA RF - PowerPoint PPT Presentation

DEVELOPING PROCESSING ELECTRONICS FOR BPM PROTOTYPE AT THE AWA RF PHOTO- INJECTOR drhgfdjhngngfmhgmghmghjmghfmf CHUAN YIN High Energy Physics Division Argonne Wakefield Accelerator facility Mentor: John Power, Jiahang Shao, Chunguang Jing August 9, 2017

T INTRODUCTION Beam Position Monitor L R Purpose A BPM detects beam centroid positions non-destructively B Structure 4 pickup electrodes Mechanism Image current 2

INTRODUCTION AWA Witness Beamline BPM Magnetic Solenoids YAG1 YAG2 Three Quads rf-gun Accelerating Laser Direction of witness beam propagation Cavity Injection 3

CHARACTERIZING BPM BOTTOM TOP RIGHT LEFT 4

CHARACTERIZING BPM Position dependence of BPM pickup signals, Horizontal steering T L R B 5

CHARACTERIZING BPM Position dependence of BPM pickup signals, Vertical steering T L R B 6

T T L CHARACTERIZING BPM L R B R Charge dependence OUT B 7

MOTIVATION Why prototype a common thing as BPM? Typical BPMs Our BPM Prototype Huge Compact Customized hardware Mass-produced hardware Specialized processing electronics Fast integrated circuits $$$ $ Barrier to entry and standardization Ability to have large market value Commercial light sources Small accelerators Accelerators for big experiments R&D linacs (APS) University accelerators Medical and industry accelerators 8

PLAN Raw signal Cheap peak Digital proc, detector Wi-Fi • 0~1023 • To control room 400 ps 9

PLAN Raw signal Cheap peak Digital proc, detector Wi-Fi • 0~1023 • To control room 400 ps 10

LAYOUT Function Generator 1 Function Generator 2 Power Supplies 1 GHz Scope Edison board Sample-and-hold 11

HARDWARE COMPONENT Envelope detector DM74LS221 400 ns 400 ps Envelope detector 12

FUNCTION DIAGRAM Digital HIGH, S/H enable 100 ms Analog, S/H output 100 ms Signal 400 ns 13

HARDWARE COMPONENT One shot DM74LS221 Trigger input Chip Dual One-shot Enable output Multivibrator 14

HARDWARE COMPONENT Sample-and-Hold Short signal input AD783 Chips PS EN Sample-and-Hold (S/H) Long square output 15

COLD TEST OF THE ELECTRONICS 16

COLD TEST OF THE ELECTRONICS 17

SUMMARY OF WORKFLOW ADL5511 AD783 ADS7951 Signal Signal Analog x4 A/D Converter Digital x4 Analog x4 Envelope Sample-and-Hold Analog x4 100 ns 100 ms 400 ps detector (S/H) 100 ms Accelerator Enable Trigger Analog One-shot Digital trigger x4 1 ms 100 ms Intel Edison Board Program Edison Digital package Digital sample Controller x1 Wi-Fi Module x4 Control room 18

SUMMARY OF WORKFLOW ADL5511 AD783 ADS7951 Signal Signal Analog x4 A/D Converter Digital x4 Analog x4 Envelope Sample-and-Hold Analog x4 100 ns 100 ms 400 ps detector (S/H) 100 ms Accelerator Enable Trigger Analog One-shot Digital trigger x4 1 ms 100 ms Intel Edison Board Program Edison Digital package Digital sample Controller x1 Wi-Fi Module x4 Control room 19

QUESTIONS?

REFERENCE [1] Datasheets for AD783, ADL5511, ADS7951, DM74LS221 [2] Documentation for Intel-Edison kit for Arduino, Intel-Edison compute module, Intel-Edison hardware guide 21