This paper describes the fault-tolerant computing research currently active at Stanford University’s Center for Reliable Computing. One focus is on tolerating hardware faults by means of software (software-implemented hardware fault tolerance). This work mainly targets faults caused by radiation induced upsets. An experiment evaluating the techniques that we have developed, is currently running...

The sensitivity of MEMS devices to radiation is reviewed, with an emphasis on radiation levels representative of space missions. While silicon and metals generally do not show mechanical degradation at the radiation levels encountered in most missions, MEMS devices have been reported to fail at doses of as few krad, corresponding to less than one year in most orbits. Radiation sensitivity is li...

Introduction: Xerostomia is the most common complication due to radiation–induced damage to salivary glands in head and neck cancer radiotherapy and it reduces quality of life. Parotid glands are main glands which they are account for secretion of stimulated saliva. Studies have demonstrated that mean tolerance parotid’s radiation dose under 26-30 Gy result in an increase in t...

UV-B radiation causes diverse morphological and physiological responses in plants, but the underlying mechanisms governing these integrated responses are unknown. In this study, we systematically surveyed responses of maize leaves to UV-B radiation using DIGE 2D gels and identified selected proteins by mass spectrometry and immunodetection analysis. To identify changes in protein accumulation i...

Transgenic bacteria producing pyrroloquinoline quinone, a known cofactor for dehydrogenases and an inducer of a periplasmic protein kinase activity, show resistance to both oxidative stress and protection from nonoxidative effects of radiation and DNA-damaging agents. Deinococcus radiodurans R1 encodes an active pyrroloquinoline quinone synthase, and constitutive synthesis of pyrroloquinoline q...

Distributed fibre optic sensors are being evaluated by the nuclear industry for monitoring purpose. We evaluate the radiation tolerance of distributed Brillouin sensors up to very high total gamma doses.

Hadron fluence monitors based on static random access memories (SRAMs) are being used at CERN and have been proposed for proton therapy facilities. Some of the limitations state art related to usage separate components sensing upsets reading them out, as these increase power consumption, board complexity its size. Moreover, in some cases, due radiation-tolerance requirements, readout logic is f...