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REAKSI NUKLIR

REAKSI NUKLIR. Setiap reaksi yang melibatkan perubahan inti atom disebut reaksi nuklir . a + X Y* Y + b Keterangan : a = partikel penembak X = inti sasaran Y* = inti majemuk b = partikel bebas

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REAKSI NUKLIR

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  1. REAKSI NUKLIR Setiapreaksi yang melibatkanperubahaninti atom disebutreaksinuklir. a + X Y* Y + b Keterangan : a = partikelpenembak X = intisasaran Y* = intimajemuk b = partikelbebas Y = intihasil a + X Y + b ditulis X(a,b)Y. HukumKekekalanPadaReaksiNuklir • Hukumkekekalan momentum • Hukumkekekalanenergi • Hukumkekekalanjumlahmuatan • Hukumkekekalanjumlahnukleon HukumKekekalanJumlahMuatandanNukleon. • Hukumkekekalanjumlahmuatan : Jumlahnomor atom pereaksisamadenganjumlahnomor atom hasilreaksi. • Hukumkekekalanjumlahnukleon : Jumlahnomormassa atom pereaksisamadenganjumlahnomormassa atom hasilreaksi

  2. EnergiReaksiNuklir (Q-value) danHukumKekekalanEnergi Perbedaanenergidiaminidisebutenergireaksiinti (Q) yang besarnya: Q = [(ma + mX) - (mY + mb)] c2 Bilamassaintidalamsmabesarnya: Q = [(ma + mX) - (mY + mb)] 931 MeV Q<0 disebutreaksiendotermikkarenaadaenergi yang diserap/dibutuhkanketikareaksi Q>0 disebutreaksieksotermikkarenaadaenergi yang dibebaskanketikareaksi. Reaksieksotermik : H2(d,p)H3 Q = 4,032 MeV Reaksiendotermik : O18(p,n)F18 Q = -2,453 MeV

  3. ELASTIK : X(n,n) TAK ELASTIK : X(n,n’) Tangkapan radioktip : X(n,g) X n Pembentukan partikel bermuatan: X(n,p), X(n,a), X(n,d) Materi Belahan inti: X(n,f) REAKSI NEUTRON DENGAN MATERI • Neutron tak bermuatan dengan massa orde proton maka mampu mendekati inti dengan mudah. JENIS REAKSI NUKLIR Terjadi reaksi nuklir

  4. .BeberapaContohReaksiNuklir

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