C osmic dust r eflectron for i sotopic a nalysis
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C osmic dust R eflectron for I sotopic A nalysis. LAMA. (A cria is a baby llama). CRIA. Dust in Space!. Space dust provides important clues on the formation and composition of our solar system as well as other stars.

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C osmic dust R eflectron for I sotopic A nalysis

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C osmic dust r eflectron for i sotopic a nalysis

Cosmic dust Reflectron for Isotopic Analysis

LAMA

(A cria is a baby llama)

CRIA


Dust in space

Dust in Space!

Space dust provides important clues on the formation and composition of our solar system as well as other stars.

Several instruments have been launched on past missions to analyze the flux and composition of space dust in-situ.


Time of flight tof mass spectrometers

Time-Of-Flight (TOF) Mass Spectrometers

  • Dust is ionized against a target and accelerated through an electric field to a detector.

  • Ion mass is inferred from Time-Of-Flight.

CDA

CIDA


Time of flight tof mass spectrometers1

Time-Of-Flight (TOF) Mass Spectrometers

  • Large target area

  • Low mass resolution

  • High mass resolution

  • Small target area

CDA

CIDA


L arge a rea m ass a nalyzer

Large Area Mass Analyzer


L arge a rea m ass a nalyzer1

Large Area Mass Analyzer

  • TOF Mass Spectrometer

  • Large target area comparable to CDA.

  • High mass resolution comparable to CIDA.

  • Lab prototype constructed and tested.


Lama what is still needed for dust astronomy

LAMA: What is still needed for dust astronomy?

Several tasks have yet to be completed:

  • Create a dust triggering system

  • Create a decontamination system

  • Show instrument can survive in space

DTS


How does a tof mass spec work

How does a TOF mass spec work?


Cria mass analyzer primary subsystems

CRIA: Mass Analyzer Primary Subsystems

IONIZER

Target


Cria mass analyzer primary subsystems1

CRIA: Mass Analyzer Primary Subsystems

ANALYZER (Ion Optics)

Annular Grid Electrodes

Ring Electrodes

Grounded Grid

Target


Cria mass analyzer primary subsystems2

CRIA: Mass Analyzer Primary Subsystems

DETECTOR

Detector


Cria concept operation

Example Spectrum

CRIA Concept: Operation

incoming dust particle

Example Dust Composition

Key

Species-1

Species-2

Species-3

Target

Increasing mass


Cria concept operation1

Example Spectrum

CRIA Concept: Operation

negative ions and electrons accelerated to target

target material also ionizes

dust impacts target and ionizes (triggert0)

t0


Cria concept operation2

Example Spectrum

CRIA Concept: Operation

positive ions accelerated towards grounded grid (triggert1)

Ions of Species-1, Species-2, Species-3, and Target Material

t0

t0

t1

t1


Cria concept operation3

Example Spectrum

CRIA Concept: Operation

Positively charged particles focused towards detector

t0

t1


Cria concept operation4

Example Spectrum

CRIA Concept: Operation

Species-1 ions arrive at detector

Ions of the same species arrive at the detector at the same time with some spread

Species-1 arrives at detector

t0

t1

t2


Cria concept operation5

Example Spectrum

CRIA Concept: Operation

Species-2 ions arrive at detector

Species-2 arrives at detector

t3

t0

t1

t2


Cria concept operation6

Example Spectrum

CRIA Concept: Operation

Species-3 ions arrive at detector

Species-3 arrives at detector

t3

t4

t0

t1

t2


Cria concept operation7

Example Spectrum

CRIA Concept: Operation

Target material ions arrive at detector

m/Δm: mass resolution

Target material has characteristic peak

t3

t4

t5

t0

t1

t2


Cria project phases

CRIA Project Phases

1

Design

Build, Assembly, & Integration

2

3

Testing


Cria design

Analyzer

Thermal

Structures

Detector

Ionizer

Electronics/CDH

CRIA Design

Design is complete for all subsystems.

However, certain design elements will need to be revisited during the build/assembly/integration phase.


Project motivation

Dan Baker

(~6ft tall man)

LAMA (struc support)

CRIA models

Project Motivation

Scale down LAMA to a size better suited for inclusion on missions of opportunity.

Improve the Technological Readiness Level (TRL) of the LAMA concept from TRL 4 to TRL 5.

CRIA

LAMA


Structure main assembly

Structure: Main Assembly

Main Housing Assembly

Detector Assembly

Target Assembly

Annular Electrode Assembly


Structure parts summary

Annular Electrode Support

Annular Electrode Mount

Annular Electrodes

Ring Electrodes

Target Electrodes

Ring Electrode Standoffs

Grounded Grid

Target

Hexagonal Base

Detector

Structure: Parts Summary


Structure main housing assembly

Structure: Main Housing Assembly


Cria build assembly integration

CRIA Build, Assembly, & Integration

  • Machining:

  • All ring electrodes

  • All of Detector Assembly

  • Electronics boxes

  • All Insulator pieces

  • Adapter plate for testing

  • Mechanical Assembly:

  • Test Plan for assembly testing

  • Wire harnessing

  • Solder connection from electronics assembly to electrodes

  • Pre-test cleanliness requirements met

  • Electronics work:

  • Component testing

  • Voltage divider assembly

  • CSA and VD testing


Cable layout

High Voltage – Ion Optics

Heater/CSA

Cable Layout


Cable layout solder access

Cable Layout: Solder Access


Mechanical ground support equipment interfaces

Mechanical Ground Support Equipment Interfaces

  • Remove-before-flight cover

  • Thermal Vacuum/Vibration Adapter Plate


Cria testing

CRIA Testing

  • Two test will be performed by December:

  • Vacuum Chamber

  • Thermal Vacuum Chamber (TVAC)

  • Vibration Testing (potentially done by LASP)

  • Pre-Test Work:

  • Test Plan for TVAC includes setup of laser in chamber

  • Potentially use Bakeout chamber at LASP

  • Acquire necessary hardware

  • Data acquisition / data reduction

  • Testing Work:

  • Man hours testing in both Vac and TVAC tests

  • Acquire data

  • Write report


Schedule

Schedule

Machining

Testing

Test Plan / Documentation

Assembly


Organizational structure

Organizational Structure

Customer Z. Sternovsky

Administration

System Engineer

Project Manager L. Brower

Student Lead D. Turner

CU AdvisorsX. Li S. Palo

ProfessionalM. Lankton (LASP)

ProfessionalP. Graf

Manufacturing

Structures

Thermal

Electronics

Student LeadD. Turner

Student LeadL. Brower

Student LeadW. Tu

Professional M. Rhode (CU)

Professional S. Steg (LASP)

Professional B. Lamprecht (LASP)

Professional V. Hoxie (LASP)

Materials

Ion Optics

Detector

Student LeadD. Lee

Student LeadL. Chang

Student LeadD. Turner

Professional G. Drake (LASP)

Experienced Graduate K. Amyx (CU)

Professional G. Drake (LASP)


C osmic dust r eflectron for i sotopic a nalysis

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