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Methods and apparatus for compensating a radiation sensor for ambient temperature variations. Ambient temperature variations may produce undesirable artifacts in electronic signals output by a radiation sensor. In some cases, such artifacts may detrimentally reduce the dynamic range of the sensor an

Methods and apparatus for compensating a radiation sensor for ambient temperature variations. Ambient temperature variations may produce undesirable artifacts in electronic signals output by a radiation sensor. In some cases, such artifacts may detrimentally reduce the dynamic range of the sensor and/or processing circuitry associated with the sensor with respect to radiation of interest. The radiation sensor may be compensated for such undesirable artifacts by, for example, adding an appropriate offset to a sensor bias voltage or a sensor bias current, and/or controlling a temperature of the radiation sensor, based on variations in the ambient temperature.

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Methods and apparatus for compensating a radiation sensor for ambient temperature variations. Ambient temperature variations may produce undesirable artifacts in electronic signals output by a radiation sensor. In some cases, such artifacts may detrimentally reduce the dynamic range of the sensor an

Methods and apparatus for compensating a radiation sensor for ambient temperature variations. Ambient temperature variations may produce undesirable artifacts in electronic signals output by a radiation sensor. In some cases, such artifacts may detrimentally reduce the dynamic range of the sensor and/or processing circuitry associated with the sensor with respect to radiation of interest. The radiation sensor may be compensated for such undesirable artifacts by, for example, adding an appropriate offset to a sensor bias voltage or a sensor bias current, and/or controlling a temperature of the radiation sensor, based on variations in the ambient temperature. Ti plasmid vector" Nature 310, 115-120 (1984). Maliga, et al., "Towards plastid transformation in flowering plants" Tibtech 11, 101-107 (1993). Boynton, et al., "Chloroplast transformation in Chlamydomonas with high velocity microprojectiles" Science 240, 1534-1538 (1988). Bilang, et al., "Containing excitement over transplastomic plants" Nature Biotechnology 16, 333-334 (1998). McBride, et al., "Amplification of a chimeric Bacillus gene in chloroplasts leads to an extraordinary level of an insecticidal protein in tobacco" Bio/Technology 13, 362-365 (1995). Staub, et al., "Expression of a chimeric uidA gene indicates that polycistronic mRNAs are efficiently translated in tobacco plastids" The Plant Journal 7(5), 845-848 (1995). Leung, et al., "Growth hormone receptor and serum binding protein: purification, cloning and expression