div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: infrared spectrometer v2 - ACS · 2021 5 28 · robustness which enabled it to a mercury-germanium sensor to detect far-infrared light Channel #2 used a lead-selenide sensor src=https:reader035vdocumentsmxreader035viewer202207151161307af81ecc515869441fe5html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: infrared spectrometer v2 - ACS · 2021 5 28 · robustness which enabled it to a mercury-germanium sensor to detect far-infrared light Channel #2 used a lead-selenide sensor src=https:reader035vdocumentsmxreader035viewer202207151161307af81ecc515869441fe5html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv