gaama kiran

vigyaan se sambandhit yeh lekh ek aadhaar hai. aap ise badhaakar vikipeediya ki sahaayata kar sakte hain. the va b

naabhikeeya bhautiki

rediyodharmi vinaash rediyodharmi vikhandan rediyodharmi sanlayan sansthaapit vinaash alfa kshaya · beeta kshaya · gaama kiran · klastar kshaya unnat vinaash dohara beeta kshaya · dohara vidyudanu kaipchar · aantarik rupaantaran · samaavayaveeya sankraanti utsarg prakriyaaeain nyootraun utsarg · paujitraun utsarg · proton utsarg abhigrahan vidyudanu abhigrahan · nyootraun abhigrahan R · S · P · Rp vikhandan svat: vikhandan · spailleshan · antariksheeya kiran spailleshan · prakaashik vightan naabhikeeya sanshleshan stellar naabhikeeya sanshleshan bigs bang naabhikeeya sanshleshan suparanova naabhikeeya sanshleshan vaigyaanik hainari baikkveral · mairi kyoori · piyre kyoori · hains beeth · others

is sandook ko: dekhein • samvaad •

gaama kiran (gaama likheen jaati hain) ek prakaar ka vidyut chumbakeeya vikirn ya fotaun hain, jinki aavrutti up-aanvik kanon ke aapasi takaraav se niklateen hain, jaise ilaiktraun - paujeetraun vinaash, ya rediyodharmi vinaash (radioactive decay). inko vidyut chumbakeeya vikirn jinka sarvaadhik urja star evam sarvaadhik aavrutti, evam nyoonatam tarang dairghya ho, tatha vidyut chumbakeeya varnakram ke andar hon, se paribhaashit kiya jaata hai. yaani ki uchchatam urja ke fotaun. apne ooainche oorja star ke kaaran, jaivik koshika dvaara sokh liye jaane par atyant nuksaan pahuaincha sakti hain.

jab gaama kirnein kisi padaarth se hokar gujarateen hain to padaarth dvaara in kirnon ko avashoshit kiye jaane ki praayikta us padaarth ki parat ki motaai, padaarth ke ghanatv, tatha padaarth ke avashoshan-pratichhed (absorption cross section) ke samaanupaati hoti hai. padaarth ke andar x-doori paar karne ke baad gaama kirnon ki teevrata nimnalikhit sootr se di ja sakti hai-

${\displaystyle I(x)=I_{0}\cdot e^{-\mu x}}$

jahaaain μ = nσ ko avashoshan gunaank kehte hain (ikaai cm⁻¹) ; n padaarth ke prati cm³ mein paramaanuon ki sankhya hai ; tatha σ avashoshan pratichhed hai (ikaai cm²)

padaarth se hokar gujarte samay gaama vikirn padaarth ka aayaneekaran kar deta hai. yeh aayaneekaran teen prakramon dvaara hota hai-

• prakaashavidyut prabhaav,
• kaumptan prakeernan, tatha
• yugm utpaadan (pair production).

• gaama kirne, brahmaand mein hone waali ati uchch oorja waali parightanaaon ke baare mein jaankaari deta hai.
• gaama kirnon ke dvaara aanavik parivartan kiya ja sakta hai. isi prakriya dvaara ardh-ratnon (semi-precious stones) ke gunon ko badla jaata hai.
• sanvedak (sensar) - star (levels), ghanatv tatha motaai maapane ke liye.
• jeevaanuon ko maarane ke liye
• Cancer ki chikitsa mein (gaama kirnon ke kaaran Cancer bhi ho sakta hai\)