Space experiments are occasionally launched to study the effects of radiation on electronic and photonic devices. This begs the following questions: Are space experiments necessary? Do the costs justify the benefits? How does one judge success of space experiment? What have we learned from past space experiments? How does one design a space experiment? This viewgraph presentation provides information on the usefulness of space and ground tests for simulating radiation damage to spacecraft components

Barth, J.

Buchner, S.

Campbell, A.

LaBel, K.

NASA Technical Reports Server

!Unclassified) 
The Role of Space Experiments in 
the Radiation Qualification of 
Electronic and Photonic Devices and 
Systems 
S. Buchner, QSS Group Inc., 
K. LaBel and J. Barth, NASNGSFC, 
A. Campbell, NRL 
The Role of S p k e  Expedmem In tb RadiaMn QualficaDon of Eledmnic and Pbtomc Devices and Systems. 1 
ResenaMn by Stephen Buchner d Hardened Electmncs and Radiatan Technoboy (HURT). Tampa. FL. M a r d  24 2OC5 
(Unclassified) 
Outline 
Introduction 
Rational for doing a space experiment 
Limitations of space experiments 
Limitations of ground experiments 
Elements of a space experiment 
Results of previous space experiments 
The Role of Space Expenrnents in the Radiaton Qudficahon of Eledmmc and Pbtomc Devices and Systems. 2 
PfeSentabOn by Stephen Buchner 1 Hardened EIaVomcr and Radiabon Technology (HEART). Tmpa.  FL. March 24,2005 
1 
https://ntrs.nasa.gov/search.jsp?R=20050180614 2019-08-29T20:16:38+00:00Z
Introduction 
Space experiments are occasionally launched to 
study the effects of radiation on electronic and 
photonic devices. This begs the following questions: 
Are space experiments necessary? 
Do the costs justify the benefits? 
How does one judge success of space experiment? 
What have we learned from past space experiments? 
How does one design a space experiment? 
The Role of Space Exprimems in the Radiatioo QuaYication of Elmmnic and Photonic Devices and Systemsm 3 
Presentation by Stephen Budlner at Hardened Eledmnic~ and Radiation Techmlosy (HEART). Tampa. FL. March 24.2CQ5 
(UnclassMed) 
Outline 
Introduction 
Rational for doing a space experiment 
Limitations of space experiments 
Limitations of ground experiments 
Elements of a space experiment 
Results of previous space experiments 
7he Role of Space Expwimerds in Ihe Radialkm Q u a i i d u n  of Eledmnic and Photonic Devices and Systems. 4 
Presentation by Stephen Budlner a Hardened Eledronia and R a d i a n  Techmbpy (HEART). Tampa. FL. March 24.2CQS 
2 
(Unclassified) 
Space Radiation Environment 
Nikkei Sricirce, h r .  of/njxni, by K. Eiido 
5 The Role of Space Expenments on the Radidicm Qu&ficabon of Eledmnic and Pbtonc Devices and Systems. 
PreLentabOn by Slephen Euchne~ at Hardened Eledmna am Radlatlon Techrolopy (HEART). Tampa FL. March 24 2M)5 
(Unclassified) 
Radiation Damage 
Total Ionizing Dose: 
>Parametric degradation - increased leakage currents, 
decreased speed, gain degradation. 
>Functional failure - CMOS transistor's threshold voltage 
changes so the part cannot switch, too much supply 
current. 
TID Occurs in most devices - CMOS, bipolar, MEMS, 
. .. 
7 h e  Role Of Space Experiments in the Radiation Qual idon of Eledronic and PhOtOnic Devices and Systems. 
Presentation by Stephen Euchner at Hardened Electronics and Radiafion Techmk~y (HEART). Tampa, FL, March 2 4 , 2 W  
6 
3 
(Unclassified) 
Radiation Damage 
Displacement Damage: 
9 Parametric degradation - solar cell efficiency, bipolar 
9 Functional failure - solar cell efficiency drops below 
gain, LED light emitting efficiency 
that needed for intended application, optocouplers fail to 
transmit data 
The Role of Space Expedments in th8 Radiatiian Qualification of Eledmnic and Ptwlonic DeviCeS and Systems. 7 
PraJBntation by Stephen Buchner a Hardened Eledmnia and Radiation Technoby (HEART). Tampa. FL. March 24.2005 
(Unclassified) 
Radiation Damage 
Single Event Effects: 
9 Non-destructive (SEU, SET) 
9 Destructive (SEL, SEB, SEGR) 
Latchup Current SEUs in SRAM 
The Role of Space ExpenmentS in the Radtaion QuaIIfiMion of Eledmnic and PhOlONC D W I C ~ ~  and Systems* a 
PreSematron by Stephen Buchner B Hardened Elecimna and Rad.a(lon Technok~q (HEART). Tamoa. FL. March 24.2005 
4 
(Unclassified) 
Radiation Damage 
Accounts for Some Anomal ies/Fai I u res 
Chronology of satellite failures 
(Unclassffled) 
Ground Testing Used to Qualify Parts 
for Sr>ace 
TID testing 
- Total Ionizing Dose: 
Gamma rays (Co60), X-rays 
Co60 emits 1 .I 7 and 1.33 MeV gamma ray. Rates on the order 
of 10 krad(Si) per hour. 
The Role of Space Expenmem in the Radiawn QualfiwUon of Elechorrc and Photomc Devices and Systems' 10 
PreSentaMn by Sephen Budner 1 Hardmed EledmncS and Radimn Techmlopy (HEART). Tampa. FL. March 24,2005 
5 
(UncbssMed) 
Ground Testing Used to Qualify Parts 
for Space 
DD testing 
Proton (accelerator), neutron (accelerator or reactor) 
The Rok Of Space ExperlmentS in Lke M i i o n  Oudnicaion d Eledmnk and Photoric Devices and Systems' 11 -n by stephen Budner d Hndened EledmricS and RadiaSon Techmlooy (HEART). Tanpa. FL. March 24,2w5 
(UnclassMed) 
Ground Testing Used to Qualify Parts 
for %ace 
Single Event Effects Testing - Accelerator, Cf 252, pulsed laser 
The Role of Space Expenmews in the Radialon Owlticabon 01 Elemuny: and PhOtONc Devices and SVstemZ 12 
PTesMmOn by Stephen Bvchner ai Hardened EledmnLS and Ra3ation Techmkw (HEART). Tampa, FL. Mard, 24.2005 
6 
(UnciassMed) 
Testing Issues 
'
Space Ground I I  
Combined I I  lndhridual 
I I  varying sources or different parts) 
13 I n n  Rok d Space Experirnenr In th Radiatan QualOmon of Eedmnlc ani Ph3tomc DWICPS a m  Systems. 
PreseMcbn by Stephen Buchner at Hardened Electmnla and Radianon Technology (HEART). Tampa. FL. Marcn 24.2005 
(Unclassified) 
Modeling 
Models 
- Total Ionizing Dose & Displacement Damage 
- Single Event Effects - CREME96 (Protons & 
Accuracy of models 
Dose - SOLPRO, JPL, Xapsos/NASA 
Heavier ions), SPENVIS, GEANT 
T h e  Role of Space Expenmentt in the RadiaWn 9uafiwon of ~leamnic and PMONC Devices ani Systems' 
Preswdatlon by Stephen Buchner a Hardened Elecboncr ani Radimn ~echnokwy (HEART). Tampa, FL. March 24.2005 14 
7 
(Unclassified) 
Previous Successes 
____ 
What are the metrics of success? 
- Number of papers published 
- Parts used in later missions 
The Role of Space Expmlments in the Radiation QwWication of Electmnic and Plutonic Devices and Smtems' 
Pmemtion by Stephen Budtner at Hard& ElectmnicS and Radiation Tednology (HEART). Tampa. FL. March 24.205 
15 
(Unclassified) 
Previous Successes 
MPTB 
- 56 papers published 
- Parts used in later missions 
CRRES 
- Papers published 
- Other information 
The Role of Space ExpefimenIs in the Radi'd~on Qualmcatan of Eleamnic and Plutonic Devices and Systems- 
PreSBmabOn by Stephen Bxhner a HardeOed Electmmcs and Raaabon Tochmwy (HEART). Tampa. FL March 24 2005 16 
a 
(UnclasstfiedJ 
Lessons Learned from Previous 
Space Experiments 
For best results assumed that testing needed to be done under 
identical conditions. This was found to be a problem with MPTB: 
- Identical boards, panel, software, telemetry. However, software was 
set for reading DRAMS in a way that was incompatible with ground 
testing due to higher rate on ground. 
occurred, had to reboot which took 11 minutes. 
of no interest. Had to strip files. 
that involved reboot of system. 
- Starting telemetry took a long time. If a single error in typing 
- Data files gigantic as they contained telemetry information that was 
- Could not count the number of upsets unless check the data and 
- Engineers unwilling to change software as no longer had funding. 
Need to find sponsors for data gathering and analysis. 
7”p Role of Spocr, ExwImenLs in the Radllion QuMcalion of Eledmnic and Photonic Devices and SysteM’ 17 
Presmmm by Stephen Buchmra H- Elgtmnics and RadiatM Techmlopy (HEART), Tampa. FL. March 24.2005 
(UnchsrMed) 
The Essentials for a Space 
Experiment 
Spacecraft needed 
(5 yrs for parts), 
Environment monitors 
- P-FETs dosimeters 
- Particle telescopes CREDO 
- Bernie Blake’s monitor 
Measure as much as possible 
- Supply currents, leakage currents 
- Temperature 
Funding for data analysis and storage 
- Proper orbit for what you want to study, don’t start too early 
- SEUS 
7he Role ~f space Expenrnerm in me ~&t im QuMcawn of Eledmnic an i  ~totonc ~ e v t c e i  ani systems. i a  
Pmentabon by stephen Buchner d Hammed Elgtmns an i  RadiaWn Techmlopy (HEART). Tmpa. FL March 24.2005 
9 


The Role of Space Experiments in the Radiation Qualification of Electronic and Photonic Devices and Systems

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