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

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DEVELOPING PROCESSING ELECTRONICS FOR BPM PROTOTYPE AT THE AWA RF PHOTO- INJECTOR

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CHUAN YIN High Energy Physics Division Argonne Wakefield Accelerator facility Mentor: John Power, Jiahang Shao, Chunguang Jing August 9, 2017

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INTRODUCTION

Purpose A BPM detects beam centroid positions non-destructively Structure 4 pickup electrodes Mechanism Image current

Beam Position Monitor

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T B L R

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INTRODUCTION

AWA Witness Beamline

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rf-gun Magnetic Solenoids

BPM

Laser Injection Accelerating Cavity Three Quads YAG2 YAG1

Direction of witness beam propagation

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CHARACTERIZING BPM

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LEFT RIGHT TOP BOTTOM

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CHARACTERIZING BPM

Position dependence of BPM pickup signals, Horizontal steering

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B L R T

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CHARACTERIZING BPM

Position dependence of BPM pickup signals, Vertical steering

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B L R T

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CHARACTERIZING BPM

Charge dependence

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B L R T T B L R OUT

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MOTIVATION

Typical BPMs

Huge Customized hardware Specialized processing electronics $$$ Barrier to entry and standardization Commercial light sources Accelerators for big experiments (APS)

Why prototype a common thing as BPM?

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Our BPM Prototype

Compact Mass-produced hardware Fast integrated circuits $ Ability to have large market value Small accelerators R&D linacs University accelerators Medical and industry accelerators

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PLAN

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Raw signal Cheap peak detector

0~1023

Digital proc, Wi-Fi

To control

room 400 ps

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PLAN

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Raw signal Cheap peak detector

0~1023

Digital proc, Wi-Fi

To control

room 400 ps

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LAYOUT

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

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HARDWARE COMPONENT

Envelope detector

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DM74LS221 Envelope detector

400 ps 400 ns

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

FUNCTION DIAGRAM

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HARDWARE COMPONENT

One shot

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DM74LS221 Dual One-shot Multivibrator

Chip Trigger input Enable output

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HARDWARE COMPONENT

Sample-and-Hold

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AD783 Sample-and-Hold (S/H)

Short signal input Long square output PS EN Chips

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COLD TEST OF THE ELECTRONICS

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COLD TEST OF THE ELECTRONICS

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SUMMARY OF WORKFLOW

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Accelerator

Analog x4 400 ps Analog 1 ms ADL5511 Envelope detector Analog x4 100 ns Signal Trigger Signal Enable AD783 Sample-and-Hold (S/H) Analog x4 100 ms Digital trigger x4 100 ms One-shot Digital package x1 Program Edison Wi-Fi Module

Control room

ADS7951 A/D Converter Digital x4 100 ms Intel Edison Board Controller Digital sample x4

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SUMMARY OF WORKFLOW

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Accelerator

Analog x4 400 ps Analog 1 ms ADL5511 Envelope detector Analog x4 100 ns Signal Trigger Signal Enable AD783 Sample-and-Hold (S/H) Analog x4 100 ms Digital trigger x4 100 ms One-shot Digital package x1 Program Edison Wi-Fi Module

Control room

ADS7951 A/D Converter Digital x4 100 ms Intel Edison Board Controller Digital sample x4

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QUESTIONS?

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REFERENCE

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

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