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SUMMARY:Establishment of a scintillator-based external trigger system for 
 timing applications in an ion beam microprobe
DTSTART;VALUE=DATE-TIME:20251120T090000Z
DTEND;VALUE=DATE-TIME:20251120T091500Z
DTSTAMP;VALUE=DATE-TIME:20260421T165115Z
UID:indico-contribution-29022@indico.ific.uv.es
DESCRIPTION:Speakers: Mauricio Rodríguez Ramos ()\nExternal trigger syste
 ms are essential in ion beam facilities because they enable precise synchr
 onization and detection with other experimental or diagnostic equipment. T
 his synchronization is crucial for achieving reproducible measurements and
  improving the temporal resolution of some experiments [1] . In this contr
 ibution\, we report on the development and commissioning of a external tri
 gger device based on an ultra-thin EJ-214 plastic scintillator [2]  at the
  ion beam microprobe of the National Accelerator Center [3] (CNA\, Seville
 ). Unlike conventional self-trigger modes\, this setup provides enhanced t
 emporal stability and enables both single-ion recognition and Time Of Flig
 ht applications. The thickness and uniformity of the scintillator were ass
 essed using Rutherford Backscattering Spectrometry\, which revealed deviat
 ions from the nominal design. Although the reduced thickness lowered the o
 utput signal amplitude\, it also decreased energy straggling\, helping to 
 preserve beam quality and enabling more precise timing analyses. Experimen
 tal tests confirmed a strong dependence of detector response on the ion im
 pact position and transmission studies showed that less than 2% of protons
  in the 2-3 MeV energy range passed through the collimator slits\, highlig
 hting the device’s suitability for high-current conditions thanks to the
  radiation tolerance of plastic scintillators. These results establish the
  system as a reliable trigger for techniques with high temporal resolution
  like in the Time-Resolved Ion Beam Induced Charge experiments and as a di
 agnostic tool for microbeam applications.\n\n1) Magalhaes-Martins\, P.\; D
 al-Bello\, R.\; Seimetz M.\; Hermann\, G.\; Kihm\, T.\; Seco\, J. Front. P
 hys. 2020\, 8:169.\n2) Seimetz\, M.\; Bellido\, P.\; Soriano\, A.\; López
 \, J.G.\; Jiménez Ramos\, M.C.\; Fernández\, B.\; Conde\, P.\; Crespo\, 
 E.\; González\, A.J.\; Hernández\, L.\; et al. IEEE Trans. Nucl. Sci. 20
 15\, 62\, 3216-3224.\n3) Lopez\, J.G.\; Ager\, F.J.\; Rank\, M.B.\; Madrig
 al\, M.\; Ontalba\, M.A.\; Respaldiza\, M.A.\; Ynsa\, M.D. Nucl. Instrum. 
 Methods B. 2000\, 161¬:163\, 1137-1142.\n\nhttps://indico.ific.uv.es/even
 t/8035/contributions/29022/
LOCATION:
URL:https://indico.ific.uv.es/event/8035/contributions/29022/
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