Radioactive Ion Beam (RIB) Facility at VECC : - Saha Institute of ...

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Nuclear Astrophysics• Reactions involving stable nuclei drive the evolutionary stage of mainsequence stars• Reactions involving unstable nuclei dominate the outcome of explosiveeventsMajor Challenges• Number of target atoms/cm 2 is small as reactions have to be studied at avery low energy, thin targets have to be used• Expected cross section is small near or below the Coulomb barrier• Intensity of RIBs is generally less compared to stable beams• Often the RIBs are not pure (mixed beam) & have large energy spread• Background due to the decay of RIB
Nuclear AstrophysicsMajor Detection Techniques Needed• Highly segmented high efficiency gamma ray detector array• Large solid angle and good angular resolution silicon detector array• Mass separator with high beam rejection efficiency• Gas cell targets & targets of long lived radioactive nucleiGRETA (Gamma Ray Energy Tracking Array) - LBLSolid angle coverage : 0.45 0.8Detection Efficieny : 1050 %Position resolution : 20mm 2mmDRAGON (Detector of Recoils And Gammas Of Nuclear reactions)Angular acceptance ≤ ±20 mradEnergy acceptance ≤ ±4%Separation is 1 in 10 15
Page 2: Radioactive Ion Beams : Ions of β-
Page 6 and 7: Physics Motivation • Material Sci
Page 8 and 9: Physics Motivation• Nuclear Physi
Page 12 and 13: Nucleosynthesis in StarsExpandingCo
Page 14 and 15: Nucleosynthesis in StarsCNO CycleZ1
Page 16 and 17: Nucleosynthesis ofelements beyond F
Page 20 and 21: 1.Radioactive Ion Beams will play a
Page 22 and 23: VECC RIBfacility layout1.5 keV/u460
Page 24 and 25: Thick target development :Selection
Page 26 and 27: Thick target R&D : first few target
Page 28 and 29: R&D Initiative on ion source :Integ
Page 30 and 31: R&D Initiative on ion source :Prima
Page 32 and 33: Typical Oxygen spectrum from ECR io
Page 34 and 35: Design & Development of LEBT sectio
Page 36 and 37: Dispersive PlaneOptics for the anal
Page 38 and 39: Design of Radio Frequency Quadrupol
Page 40 and 41: RADIOFREQUENCY QUADRUPOLE (RFQ) : 1
Page 42 and 43: Beams available from the RIB facili
Page 44 and 45: Design of LINAC cavitiesK=130Cyclot
Page 46 and 47: VECLIN Snap shotε x/y= 0.5 π mm m
Page 48 and 49: IH - LINAC : The design details Str
Page 50 and 51: LINAC-1 : Important ParametersFrequ
Page 53: LINAC-2 : Important ParametersFrequ
Page 56 and 57: Future Plans
Page 58 and 59: e-linace- γUraniumISOL type RIB fa
Page 60 and 61: Thank You!60
Page 62 and 63: 238U photo-fission fragmentsmass di
Page 64: IH - LINAC : The design details Pos

Radioactive Ion Beam (RIB) Facility at VECC : - Saha Institute of ...

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