gaama kiran


naabhikeeya bhautiki
CNO Cycle.svg
rediyodharmi vinaash
rediyodharmi vikhandan
rediyodharmi sanlayan
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.

anukram

gunadharm

sheelding

padaarth ke saath anukriya

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-

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).

upayog

  • 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\)
radio varnakram
atyadhik nimn aavrutti (ELF) param nimn aavrutti (SLF) atyant nimn aavrutti (ULF) ati nimn aavrutti (VLF) nimn aavrutti (LF) madhyam aavrutti (MF) uchchaavrutti (HF) atyochchaavrutti (VHF) atyant uchchaavrutti (UHF) param uchchaavrutti (SHF) atyadhik uchchaavrutti (EHF)
3 Hz 30 Hz 300 Hz 3 kilo hartj 30 kilo hartj 300 kilo hartj 3 maiga hartj 30 maiga hartj 300 maiga hartj 3 geega hartj 30 geega hartj
30 Hz 300 Hz 3 kilo hartj 30 kilo hartj 300 kilo hartj 3 maiga hartj 30 maiga hartj 300 maiga hartj 3 geega hartj 30 geega hartj 300 geega hartj