Folded tandem ion accelerator facility at trombay

Singh, Pitamber

doi:10.1007/s12043-001-0068-y

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…The energy calibration of BaF 2 detectors in the γ -ray energy range up to 6.13 MeV was done using 137 Cs, 60 Co, 241 Am- 9 Be and 238 Pu-13 C radioactive sources. For higher γ -ray energies up to ∼21 MeV, the 27 Al(p,γ ) and 11 B(p,γ ) reactions feeding the ground and excited states of the composite nuclei were measured using proton beams (E p ∼ 3.6-5.0 MeV) from the FOTIA accelerator at Mumbai [25]. The gain variation of the detectors was monitored periodically with the radioactive sources and was found to be within ±0.8% over the period of experimental measurements.…”

Section: Methodsmentioning

confidence: 99%

Inhomogeneous and intrinsic damping of giant dipole resonance in hot rotating nuclei withA∼ 150

Chakrabarty

Datar

Kumar

et al. 2010

J. Phys. G: Nucl. Part. Phys.

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High-energy gamma rays in the range of ∼4–28 MeV were measured in the reaction 28Si+124Sn at E(28Si) ∼ 185 MeV in coincidence with low-energy gamma ray multiplicities and evaporation residues. The centroid energy and width of the giant dipole resonance were extracted for various multiplicity windows from the statistical model analysis. These extracted widths, along with those from an earlier measurement at E(28Si) ∼ 149 MeV, show a discrepancy with the results of a calculation under the thermal shape fluctuation model which describes the inhomogeneous damping of the resonance. An empirical form of the temperature and angular momentum dependence of the width, describing the data at both the beam energies, has been derived. The present results suggest that the contributions from both the inhomogeneous damping and the intrinsic collisional damping processes should be included.

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Section: Methodsmentioning

confidence: 99%

Inhomogeneous and intrinsic damping of giant dipole resonance in hot rotating nuclei withA∼ 150

Chakrabarty

Datar

Kumar

et al. 2010

J. Phys. G: Nucl. Part. Phys.

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“…Biological effects of heavy charged particles on humans play an important role in two different scientific fields; in radiation therapy using protons and heavier ions and in space research for understanding effects on space travelers from galactic cosmic radiation [1]. In addition, the low energy heavy ion accelerators have an important role in basic and applied sciences [2]. Proton being the easiest light ion to accelerate and achieve desired beam profile, has been pursued as a popular particulate radiation for therapeutic applications.…”

Section: Introductionmentioning

confidence: 99%

Relative Biological Effectiveness Studies Using 3 MeV Proton Beam from Folded Tandem Ion Accelerator: An Experimental and Theoretical Approach

Nairy¹,

Bhat²,

Anjaria³

et al. 2020

Recent Techniques and Applications in Ionizing Radiation Research

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Proton being the easiest light ion to accelerate and achieve desired beam profile, has been pursued as a popular particulate radiation for therapy applications. In the present study, Saccharomyces cerevisiae D7 strain was used to estimate the RBE values of the 3 MeV proton beam, and an attempt was made to derive mathematical formula for calculating RBE value with respect to the dose. Dosimetry studies were carried out using Fricke dosimetry and Semiconductor Surface Barrier detector to calibrate the absorbed doses of Gamma chamber-1200 and Folded Tandem Ion Accelerator respectively. Gold standard cell survival assay and gene conversion assay were used to compare gamma and proton radiation induced cell death and genetic endpoint. Multi target single hit model was used to derive mathematical formula for RBE estimation. The results show a linear survival-dose response after proton radiation and sigmoid survival-dose response after gamma radiation treatment. The calculated RBE value from the survival and gene conversion studies was 1.60 and 3.93, respectively. The derived mathematical formula is very useful in calculating RBE value, which varies from 3.61 to 1.80 with increasing dose. The estimated RBE value from the mathematical formula is comparable with the experimental values. With the help of the present mathematical formulation, RBE value at any dose can be calculated in the exponential and sigmoidal regions of the survival curve without actually extending the experiment in that dose region, which is not possible using conventional methods.

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“…An indigenously built folded tandem ion accelerator (FOTIA) facility [1][2][3] has recently been commissioned at BARC. It involved designing, fabrication, testing, installation and commissioning of a 6 MV folded tandem ion accelerator, by utilizing some of the components like the pressure tank, the storage tank, the equipotential rings, the high voltage dome and the accelerator room of the old 5.5 MV Van-de-Graaff accelerator at the Nuclear Physics Division, BARC.…”

Section: Introductionmentioning

confidence: 99%

Status report on the folded tandem ion accelerator at BARC

et al. 2002

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The folded tandem ion accelerator (FOTIA) facility set up at BARC has become operational. At present, it is used for elemental analysis studies using the Rutherford backscattering technique. The beams of 1 H, 7 Li, 12 C, 16 O and 19 F have been accelerated up to terminal voltages of about 3 MV and are available for experiments. The terminal voltage is stable within ¦2 kV. In this paper, present status of the FOTIA and future plans are discussed.

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Folded tandem ion accelerator facility at trombay

Cited by 6 publications

References 2 publications

Inhomogeneous and intrinsic damping of giant dipole resonance in hot rotating nuclei withA∼ 150

Inhomogeneous and intrinsic damping of giant dipole resonance in hot rotating nuclei withA∼ 150

Relative Biological Effectiveness Studies Using 3 MeV Proton Beam from Folded Tandem Ion Accelerator: An Experimental and Theoretical Approach

Status report on the folded tandem ion accelerator at BARC

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