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DOI: 10.5281/zenodo.17287922
RADNEXT T ansna ional Access Summa y Repo
P ojec i le
E ec Cha ac e iza ion o P o on Radia ion on LEAP OBT
(ECPRL)
P ojec TA iden i ie
TA10-314
Gene al applica ion
Da acom, ha sh en i onmen s, space, a ia ion, physics
esea ch, medical
Type o es
TNID
G oup leade , Ins i u e
Ma hias Hendel, Amphenol AOP
Co-au ho s, Ins i u es
Ma hias-Emanuel Ha mann, Di k Be e mann, Alexand e
Lassalle. All Amphenol AOP
Da e(s) o he expe imen
2025-03-24 o 2025-03-26
Facili y
Paul Sche e Ins i u
Amoun o access g an ed
(uni o access: 1h)
11
Objec i es o he expe imen s
The objec i e o his expe imen was o cha ac e ize he e ec s o p o on adia ion on a s a e-o - he-a
op ical anscei e o ha sh en i onmen s. The es ed anscei e was Amphenol Ac i e Op ical
P oduc s’ QEPT Module. This de ia ion om he ini ially p oposed LEAP OBT was ini ia ed a e
alking o he RADNEXT TA Team, when SEE es s pe o med by CNES/TRAD in Q4 2024 indica ed,
ha he LEAP OBT was suscep ible o single e en e ec s.
The ini ial es ing was pe o med be ween he 24 h and he 26 h o Ma ch 2025 a he Paul Sche e
Ins i u e in Swi ze land. The ull analysis o he es esul s is s ill ongoing and will be comple ed a e
he i adia ed samples a e eleased om qua an ine. This is cu en ly expec ed o happen owa ds he
backend o 2025.
Non he less, he p elimina y esul s p esen ed in his epo al eady p o ide some aluable insigh in o
he obus ness o he QEPT wi h ega ds o displacemen damage and ep esen a signi ican s ep
owa ds ha ing a ully adia ion cha ac e ized, Eu opean manu ac u ed, COTS op ical anscei e .
EDMS 3328307 .1 s a us In Wo k access Res ic ed
PDF om TA10-314-Zenodo.doc modi ied 2025-10-07 15:54
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Figu e 1: Amphenol AOP QEPT Module
Expe imen es epo
All Resul s a e conside ed p elimina y.
A o al o 14 o Amphenol AOPs QEPT modules whe e exposed, in h ee ba ches, o a ying luences o
a 50-MeV P o on beam. The samples we e g ouped in ba ches o 6 uni s, which we e placed in he
beam a he same ime.
Ba ch composi ion Table
Day 1
Day 2
no e
Se ial Numbe s
Pa Numbe
Ba ch
Posi ion
Ba ch
Posi ion
QA2509-00008
TR252041PMTA1C00
1
1
3
1
QA2509-00013
TR252041PMTA1C00
1
2
x
x
QA2509-00009
TR252041PMTA1C00
1
3
x
x
QA2509-00005
TR252041PMTA1C00
1
4
x
x
QA2509-00007
TR252041PMTA1C00
1
5
3
5
QA2452-00008
TR252041PMTA1C0S
1
6
3
6
“space” con igu a ion
QA2509-00010
TR252041PMTA1C00
2
1
x
x
QB2504-00001
TR252041PMTA1C0S
2
2
3
2
“space” con igu a ion
QA2509-00006
TR252041PMTA1C00
2
3
x
x
QA2509-00004
TR252041PMTA1C00
2
4
x
x
QA2509-00001
TR252041PMTA1C00
2
5
x
x
QA2509-00002
TR252041PMTA1C00
2
6
x
x
QA2509-00014
TR252041PMTA1C00
Con ol
QA2509-00003
TR252041PMTA1C00
x
x
3
3
QA2509-00012
TR252041PMTA1C00
x
x
3
4
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The samples we e biased acco ding o he ollowing schema ic:
Figu e 2: Bias Con igu a ion Du ing I adia ion
Due o he sample dis ibu ion on he es boa d (see below) he luence dis ibu ion was no uni o m
wi hin one Ba ch
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Figu e 3: QEPT DD Tes ix u e Top View
To accoun o he he e ogenous dis ibu ion he calib a ion da a was in e pola ed in o an adjus men
ac o , e lec ing bo h he beam calib a ion da a as well as he modules posi ion on he boa d. Bo h his
adjus men ac o , as well as he luences (pe es s and accumula ed) may be ound in he ollowing
able.
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Fluence pe Tes /Module
Ba ch 1
T1
T2
T3
T4
Posi ion
adjus men
Fac o
Tes
Accumula ed
Tes
Accumula ed
Tes
Accumula ed
Tes
Accumula ed
nominal Fluence
5.52E+09
5.52E+09
5.55E+09
1.11E+10
4.40E+10
5.51E+10
5.50E+10
1.10E+11
adjus ed Fluences:
QA2509-00008
5.12E+09
5.12E+09
5.15E+09
1.03E+10
4.09E+10
5.11E+10
5.11E+10
1.02E+11
1
0.928302689
QA2509-00013
5.33E+09
5.33E+09
5.36E+09
1.07E+10
4.25E+10
5.32E+10
5.32E+10
1.06E+11
2
0.966366219
QA2509-00009
4.56E+09
4.56E+09
4.58E+09
9.14E+09
3.63E+10
4.55E+10
4.54E+10
9.09E+10
3
0.825904515
QA2509-00005
3.73E+09
3.73E+09
3.75E+09
7.47E+09
2.97E+10
3.72E+10
3.71E+10
7.43E+10
4
0.67531594
QA2509-00007
3.58E+09
3.58E+09
3.60E+09
7.19E+09
2.86E+10
3.58E+10
3.57E+10
7.15E+10
5
0.649545396
QA2452-00008
4.13E+09
4.13E+09
4.15E+09
8.28E+09
3.29E+10
4.12E+10
4.12E+10
8.23E+10
6
0.748047762
Fluence pe Tes
Ba ch 2
T1
T2
T3
T4
Posi ion
Tes
Accumula ed
Tes
Accumula ed
Tes
Accumula ed
Tes
Accumula ed
nominal Fluence
8.92E+10
8.92E+10
9.48E+10
1.84E+11
8.79E+10
2.72E+11
1.09E+11
3.81E+11
adjus ed Fluences:
QA2509-00010
8.28E+10
8.28E+10
8.80E+10
1.71E+11
8.16E+10
2.52E+11
1.01E+11
3.53E+11
1
0.928302689
QB2504-00001
8.62E+10
8.62E+10
9.17E+10
1.78E+11
8.49E+10
2.63E+11
1.05E+11
3.68E+11
2
0.966366219
QA2509-00006
7.37E+10
7.37E+10
7.83E+10
1.52E+11
7.26E+10
2.25E+11
8.97E+10
3.14E+11
3
0.825904515
QA2509-00004
6.02E+10
6.02E+10
6.40E+10
1.24E+11
5.93E+10
1.84E+11
7.33E+10
2.57E+11
4
0.67531594
QA2509-00001
5.79E+10
5.79E+10
6.16E+10
1.20E+11
5.71E+10
1.77E+11
7.05E+10
2.47E+11
5
0.649545396
QA2509-00002
6.67E+10
6.67E+10
7.09E+10
1.38E+11
6.57E+10
2.03E+11
8.12E+10
2.85E+11
6
0.748047762
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Fluence pe Tes
Ba ch 3
T1
T2
T3
Posi ion
Tes
Accumula ed
Tes
Accumula ed
Tes
Accumula ed
nominal Fluence
1.90E+11
1.90E+11
1.90E+11
3.80E+11
1.30E+11
5.10E+11
adjus ed Fluences:
QA2509-00008
1.76E+11
1.76E+11
1.76E+11
3.53E+11
1.21E+11
4.73E+11
1
0.928302689
QB2504-00001
1.84E+11
1.84E+11
1.84E+11
3.67E+11
1.26E+11
4.93E+11
2
0.966366219
QA2509-00003
1.57E+11
1.57E+11
1.57E+11
3.14E+11
1.07E+11
4.21E+11
3
0.825904515
QA2509-00012
1.28E+11
1.28E+11
1.28E+11
2.57E+11
8.78E+10
3.44E+11
4
0.67531594
QA2509-00007
1.23E+11
1.23E+11
1.23E+11
2.47E+11
8.44E+10
3.31E+11
5
0.649545396
QA2452-00008
1.42E+11
1.42E+11
1.42E+11
2.84E+11
9.72E+10
3.82E+11
6
0.748047762
Module no unc ional: ed, module impac ed bu unc ional: yellow. Module unc ional: g een. "space" module a ian in blue ex
Gene ally, as indica ed by he colou coding in he p eceding able, he wo anscei e s QA2452-00008 and QB2504-00001 su i ed i adia ion
in excess o 3.82E11 pa icles pe squa e cm wi h mino , non unc ional e ec s. Bo h o hese pa s a e p o o ypes o he “Space” e sion o he
QEPT. Non o he o he pa s su i ed mo e han 1.38E11 wi h he i s pa s ailing a e 3.72E10 pa icles pe squa e cm.
Since he objec i e o his expe imen was o cha ac e ize he beha iou o he QEPT wi h ega ds o displacemen damage, he p ojec may
al eady be conside ed a success based on hese p elimina y indings alone. Release o he comple ed epo depends on he comple ion o wo
addi ional asks.
Fi s ly, a numbe o pa ame e s we e measu ed a e e e y i adia ion s ep and a e cu en ly being analysed ega ding hei luence dependen
changes.
Secondly, a inal se o measu emen s is o be pe o med on he modules, once hey clea qua an ine a PSI. The nex chance o his is
cu en ly an icipa ed in Decembe 2025.
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