Dhumucda boorsada boron-polyethylene waa 2cm-30cm.Beerteeda farsamo waa codsiga tignoolajiyada nukliyeerka ee ilaalinta shucaaca ionizing.Boron-polyethylene board waxa loo isticmaalaa in lagu difaaco neutron-yada degdega ah ee goobta shucaaca neutron-ka, neutron iyo Y beerta shucaaca isku qasan ee goobta ilaalinta shucaaca ionizing, si looga hortago waxyeelada shucaaca iyo waxyeelada uu keeno shucaaca neutron ee shaqaalaha shaqada iyo dadweynaha.
Si loo hagaajiyo saamaynta gaashaanka ee boron polyethylene ee neutron-ka degdega ah loona xalliyo dhibaatada ay adag tahay in la soo saaro boodhka polyetylen boron ganacsi ahaan gudaha Shiinaha, waxaa la sameeyay boodhka polyetylenka boron ka kooban oo leh boron 8% ah.Marka la eego mabda'a ilaalinta neutrons-ka degdega ah, maadaama tirada soo hadhay ee neutronsku ay tahay 1.0086649U, halka ta atomamka hydrogen (ie protons) ay tahay 1.007825 U [1], tirada atamka ee neutrons waxay ku dhowdahay ta atamka hydrogen.Sidaa darteed, marka neutron-ka degdega ahi uu ku dhaco nuklei-yada hydrogen ee ku jira jidhka gaashaanka, waxaa ugu fudud in la lumiyo tamarta adigoo u wareejinaya xudunta atomka hydrogen, hoos u dhigista neutron-yada degdega ah si loo yareeyo neutrons iyo kulaylka.Hadba hadrogen ka badan ee jirka gaashaanku ka kooban yahay, way sii xoogaysanaysaa saamaynta dhexdhexaadinta.Waxa ka mid ah waxyaabaha ka kooban hydrogen-ka ee walxaha gaashaanka neutron-ka ee sida caadiga ah loo isticmaalo, waxa ku jira hydrogen ee polyetylen waa tan ugu sareysa, ilaa 7.92x IO22 atamka/cm3 gaas.Sidaa darteed, polyetylen ayaa ah dhexdhexaadiyaha ugu fiican ee ilaalinta neutron-yada degdega ah.Ka dib markii neutron-yada degdega ahi hoos ugu dhaco neutron-yada kulaylka ah, agabka gaashaanka leh ee nuugista neutron-ku-kulka weyn ee is-goysyada iyada oo aan lahayn shucaaca tamarta sare ee Y ayaa loo baahan yahay si loo nuugo neutrons-ka kulaylka, si loo gaaro ujeeddada ah in gebi ahaanba la ilaaliyo neutron-yada degdega ah.Sababtoo ah qaybta sare ee nuugista neutron-ku-kulka ee (3840 lL)X10_24cm2[3], iyo badnaanta kiB ee boron dabiiciga ah waa 18.98% [3], taas oo sahlan in la helo, walxaha boron-ku jira ayaa si fiican u nuugaya ilaalinta kulaylka. neutrons
Ilaalinta shucaaca Neutron-ka ee dhirta tamarta nukliyeerka, dardar-geliyayaasha tamarta dhexdhexaadka ah (sare), reactor-ka atomiga, submarinnada nukliyeerka, dardar-geliyayaasha caafimaadka, qalabka daaweynta neutronka iyo meelo kale.
Waqtiga boostada: Meey-31-2022
