Details

Autor(en) / Beteiligte

• Ullan, M.
• Dorfan, D.
• Dubbs, T.
• Grillo, A.A.
• Spencer, N.
• Seiden, A.
• Spieler, H.
• Gilchriese, M.
• Lozano, M.

Titel

Ionization damage on ATLAS-SCT front-end electronics considering low dose rate effects

Ist Teil von

• 2001 IEEE Nuclear Science Symposium Conference Record (Cat. No.01CH37310), 2001, Vol.1, p.109-113 vol.1

Ort / Verlag

IEEE

Erscheinungsjahr

2001

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Low Dose Rate Effects (LDRE) in bipolar technologies complicate the hardness assurance testing for High Energy Physics applications. The damage produced in the ICs in the real experiment can be underestimated if fast irradiations are carried out, while experiments done at the real dose rate are usually unpractical due to the still high total doses involved. In this work, the sensitivity to LDRE of the two bipolar technologies proposed for the ATLAS-SCT experiment in the LHC at CERN is evaluated, its magnitude measured at the total dose of interest for the transistors, and accelerated tests are performed, when necessary, on the actual ICs using high temperature in order to mimic the effects of the low dose rate. One of the proposed technologies (DMILL) has been found free from LDRE thus easing the radiation damage studies performed on it. The other one (CB2) suffers from LDRE. The effects have been measured for the individual devices. Experiments have been carried out to find the temperature that best mimics the LDRE at high dose rates. This temperature has been used in accelerated tests that have been performed on the chip fabricated with this technology in order to obtain the ionization damage that this IC will suffer under the real conditions.