{"product_id":"tallywick-the-dark-count-lamplighter-mug","title":"Tallywick, the Dark-Count Lamplighter Mug","description":"\u003cp\u003eThermionic emission: J = A T² e\u003csup\u003e−W\/kT\u003c\/sup\u003e (Richardson–Dushman). It is why photomultipliers have dark counts and why they are cooled.\u003c\/p\u003e\n\u003cp\u003eThe joke: Dark counts are thermal electrons leaving the photocathode; cooling suppresses them exponentially. The slogan on the mug reads \u003cstrong\u003eIN THE DARK, SOMETHING STILL CLICKS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSource: S. Dushman, Phys. Rev. 21, 623 (1923); O. W. Richardson, Nobel Lecture (1929).\u003c\/p\u003e","brand":"Printify","offers":[{"title":"11oz","offer_id":50976134463591,"sku":"28537838076654915845","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/8746\/9159\/files\/6237891393593939507_2048.jpg?v=1793683578","url":"https:\/\/pixelatedphysics.com\/it\/products\/tallywick-the-dark-count-lamplighter-mug","provider":"Pixelated Physics","version":"1.0","type":"link"}