Radiation qualification and testing of a large number of optical glasses used in the ESA Fluid Science Laboratory onboard the Columbus Orbital Facility of the International Space Station

Doyle, Dominic; Dewandre, Thierry; Claessens, D.; Cock, Ellen De; Vautmans, Luc; Dupont, Olivier; Gusarov, A.

doi:10.1117/12.452227

Cited by 6 publications

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“…Therefore, only optical glasses qualified for the expected radiation load can be used. This qualification can limit the list of possible candidates and be a serious problem when a complicated optical system using sometimes tens of different glasses has to be redesigned for space operation [1].…”

Section: Introductionmentioning

confidence: 99%

Comparison of radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

et al. 2005

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Space-born optical systems must be tolerant to radiation to guarantee that the required system performance is maintained during prolonged mission times. The radiation-induced absorption in optical glasses is often related with the presence of impurities, which are, intentionally or not, introduced during the manufacturing process. Glass manufacturers use proprietary fabrication processes and one can expect that the radiation sensitivity of nominally identical optical glasses from different manufacturers is different. We studied the gamma-radiation induced absorption of several crown glasses with n d ≈ 1.516 and ν d ≈ 64, i.e. NBK7 (Schott), S-BSL7 (Ohara), BSC 517642 (Pilkington) and K8 (Russia). NBK7 recently replaced the well-known BK7. We therefore also compared the radiation response of NBK7 and BK7 glass. Our results show that whereas the glasses are optically similar before irradiation, they show a different induced absorption after irradiation and also different post-radiation recovery kinetics. Taking these differences into account can help to improve the radiation tolerance of optical systems for space applications.

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Section: Introductionmentioning

confidence: 99%

Comparison of radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

et al. 2005

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Effect of melting atmospheres on the optical property of radiation-hard fluorophosphate glass

Zhang

et al. 2021

Ceramics International

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Radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

et al. 2007

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Space-borne optical systems must be tolerant to radiation to guarantee that the required system performance is maintained during prolonged mission times. We show that the radiation hardness can be improved by selecting the relevant glass from a group of optical analogs. This conclusion is based on the study of gamma-radiation-induced absorption of crown glasses from group 517640 ͑glasses with n d Ϸ 1.517 and d Ϸ 64͒-BK7 and NBK7 ͑Schott͒, S-BSL7 ͑Ohara͒, BSC 517642 ͑Pilkington͒, and K8 ͑NITIOM͒. Our results show that whereas these glasses are optical analogs before irradiation, they behave differently during and after irradiation.

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Radiation qualification and testing of a large number of optical glasses used in the ESA Fluid Science Laboratory onboard the Columbus Orbital Facility of the International Space Station

Cited by 6 publications

References 0 publications

Comparison of radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

Comparison of radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

Effect of melting atmospheres on the optical property of radiation-hard fluorophosphate glass

Radiation-induced transmission degradation of borosilicate crown optical glass from four different manufacturers

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