HAMAMATSU, Japan, 25 ga Agusta, 2021-Hamamatsu Photonics da Cibiyar Ci gaban Masana'antu da Fasaha ta Ƙasa (AIST) a Tokyo sun yi haɗin gwiwa kan tsarin sa ido na iskar gas mai ɗorewa don tsinkayar fashewar dutsen tare da babban matakin hankali. Baya ga samar da tsayayye, sa ido na dogon lokaci na iskar gas din da ke kusa da ramukan dutsen, ana iya amfani da mahimmin mai binciken don gano iskar gas mai guba a tsirrai da magudanan ruwa da ma'aunin yanayi.

Tsarin yana ƙunshe da ƙaramin ƙarami, raƙuman ruwa-goge ƙwallon ƙwallon ƙira (QCL) wanda Hamamatsu ya haɓaka. A kusa da 1/150th girman QCLs na baya, laser shine QCL mafi ƙanƙantawar raƙuman ruwa a duniya. Tsarin tuƙi don tsarin sa ido na gas, wanda AIST ya haɓaka, zai ba da damar ƙaramin QCL a cikin ƙananan nauyi, masu ɗaukar hoto waɗanda za a iya ɗauka ko'ina.
QCL mafi ƙanƙan raƙuman ruwa a duniya shine kawai 1/150th girman QCLs mai ƙwanƙwasa na baya. Kyautar Hamamatsu Photonics KK da New Energy and Development Technology Development Organization (NEDO).
Amfani da fasahar microelectromechanical system (MEMS) na Hamamatsu, masu haɓaka gaba ɗaya sun sake tsara ƙimar rarrabuwa ta MEMS ta QCL, ta rage shi zuwa kusan 1/10 girman girman kyauta. Har ila yau, ƙungiyar ta yi amfani da ƙaramin maganadisu wanda aka shirya don rage sararin da ba dole ba, kuma daidai ya haɗa sauran abubuwan tare da daidaito har zuwa raka'a 0.1 μm. Girman QCL na waje shine 13 × 30 × 13 mm (W × D × H).

QCLs masu tsayin-tsayi suna amfani da rabe-raben rarrabuwa na MEMS wanda ke watsawa, yana nunawa, kuma yana fitar da tsakiyar infrared yayin da yake saurin canzawa. QCL ta Hamamatsu mai ɗaukar igiyar ruwa tana iya daidaitawa a cikin iyakar raƙuman ruwa na 7 zuwa 8 μm. Wannan kewayon yana samun sauƙin sauƙi ta hanyar iskar gas ta SO2 da H2S waɗanda ake ɗauka farkon masu hasashen yiwuwar fashewar dutsen mai fitad da wuta.

Don cimma madaidaicin raƙuman ruwa, masu binciken sun yi amfani da fasahar ƙirar kayan aiki wanda ke kan tasirin ƙima. Don Layer mai haskakawa na ƙimar QCL, sun yi amfani da ƙirar ƙetare ta ƙasa-biyu.

Lokacin da aka haɗa QCL mai ƙwanƙwasawa tare da tsarin tuƙi wanda AIST ta haɓaka, zai iya cimma saurin ɗaukar raƙuman ruwa wanda ke samun ci gaba mai haske na tsakiyar infrared a cikin 20 ms. Samun sauri na QCL na bakan zai sauƙaƙa nazarin abubuwan abubuwan da ke canzawa cikin sauri akan lokaci. Tsarin ƙuduri na QCL kusan 15 nm ne, kuma mafi girman fitowar sa shine kusan 150 mW.

A halin yanzu, yawancin masu nazarin da ake amfani da su don ganowa da auna iskar gas a cikin ainihin lokaci suna da firikwensin lantarki. Wutar lantarki a cikin waɗannan na'urori masu auna firikwensin - da aikin mai yin nazari - suna lalacewa da sauri, saboda iskar gas mai guba koyaushe. Duk masu nazarin gas ɗin gas suna amfani da tushen hasken rayuwa mai tsawo kuma suna buƙatar ƙarancin kulawa, amma tushen hasken na iya ɗaukar sarari da yawa. Girman waɗannan masu nazarin yana sa su wahalar shigarwa a kusa da ramukan dutsen.

Tsarin sa ido na iskar gas mai zuwa, wanda ke sanye da ƙaramin raƙuman ruwa mai ƙarfi na QCL, zai ba masu ilimin dutsen dindindin kayan aikin gani-da-gani, ƙarami, mai ɗaukuwa wanda ke da babban hankali da kulawa mai sauƙi. Masu binciken a Hamamatsu da takwarorinsu na AIST da New Energy and Development Technology Development Organization (NEDO), wanda ya tallafa wa aikin, za su ci gaba da binciken hanyoyin da za su kara karfin mai nazari da rage kulawa.

Teamungiyar tana shirin lura da abubuwa da yawa don gwadawa da nuna mai yin nazari. Kayayyakin da ke amfani da QCL mai tsayin raƙuman ruwa da kewaya tare tare da masu amfani da fotodetector na Hamamatsu an tsara su don fitarwa a cikin 2022.