Beam optics of the folded tandem ion accelerator at BARC

Pramana ◽  
2002 ◽  
Vol 59 (1) ◽  
pp. 53-68 ◽  
Author(s):  
S Santra ◽  
P Singh
Keyword(s):  
Beam Optics ◽  
Ion Accelerator ◽  
Folded Tandem Ion Accelerator

PIXE STUDIES ON GOLD STANDARDS BY PROTONS OF ENERGY 3.3 MeV

2004 ◽  
Vol 14 (03n04) ◽  
pp. 141-146 ◽  
Author(s):  
DAISY JOSEPH ◽  
A. SAXENA ◽  
S. K. GUPTA ◽  
S. KAILAS
Keyword(s):  
Proton Beam ◽  
Energy Dispersive ◽  
X Rays ◽  
X Ray ◽  
Ion Accelerator ◽  
Folded Tandem Ion Accelerator ◽  
Certified Values ◽  
A Current ◽  
Gold Standards

Proton Induced X-ray Emission Technique (PIXE) has been used in analyzing Gold standards of 22, 20, 18, and 14 karats with a proton beam of Energy 3.3 MeV at the newly commissioned Folded Tandem Ion Accelerator (FOTIA) at B.A.R.C, Trombay. Well resolved Au and Ag X-rays were detected at a current of 3 nA . Percentage values of gold and silver were calculated and were checked with those obtained by Energy Dispersive X-ray Fluorescence (EDXRF) Method and were found to be in agreement with the certified values as well as those obtained by XRF.

scholarly journals Distributed UHV system for the folded tandem ion accelerator facility at BARC

2008 ◽  
Vol 114 ◽  
pp. 012022
Author(s):  
S K Gupta ◽  
A Agarwal ◽  
S K Singh ◽  
A Basu ◽  
Sapna P ◽  
...  
Keyword(s):  
Accelerator Facility ◽  
Ion Accelerator ◽  
Folded Tandem Ion Accelerator

Effects of proton beams from the folded tandem ion accelerator on DNA damage in mouse leukocytes using the comet assay

2006 ◽  
Vol 3 (4) ◽  
pp. 310
Author(s):  
R.C. Chaubey ◽  
H.N. Bhilwade ◽  
R. Rajagopalan ◽  
N. Joshi ◽  
K.P. Mishra ◽  
...  
Keyword(s):  
Dna Damage ◽  
Comet Assay ◽  
Proton Beams ◽  
Ion Accelerator ◽  
Folded Tandem Ion Accelerator

CHARACTERIZATION OF A FEW GEM STONES BY X-RAY EMISSION TECHNIQUES (EDXRF AND EXTERNAL PIXE)

2010 ◽  
Vol 20 (03n04) ◽  
pp. 127-134
Author(s):  
DAISY JOSEPH
Keyword(s):  
Trace Element ◽  
Periodic Table ◽  
X Rays ◽  
Testing Laboratory ◽  
X Ray ◽  
Ion Accelerator ◽  
Natural Zircon ◽  
Folded Tandem Ion Accelerator ◽  
Kapton Foil

X-ray Emission Techniques (EDXRF) and External Proton Induced X-ray Emission Technique (PIXE) have been used to characterize 13 gem stones obtained from Gem Testing Laboratory, Jaipur, India. Radioisotope sources 109 Cd and 241 Am were used to excite the gem stones to generate K and L X-rays in the low and high Z region of the periodic table to investigate trace element inclusions besides the main matrix. A proton beam of 4 MeV energy and current of 8 nA intensity were extracted from the FOTIA (Folded Tandem Ion Accelerator) at VandeGaaff Accelerator, Trombay, Mumbai in air through a Kapton foil of 8 micrometer thick mounted on a Teflon cone. Gem stones such as Labradorite Feldspar, Moonstone Feldspar, Almandine Garnet, Tsavorite Garnet, Apatite, Natural Spinel, Natural Zircon, Spessartine Garnet, Natural Ruby (Lead filled), Natural Ruby were characterized for their elemental profile to see the differences in composition besides the main matrix differences. Elements such as Ca , Ti , V , Cr , Mn , Fe , Cu , Zn , Sr , Y and Zr were detected.

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

2020 ◽  
Author(s):  
Rajesha K. Nairy ◽  
Nagesh N. Bhat ◽  
K.B. Anjaria ◽  
Usha Yadav ◽  
Rajesh Chaurasia ◽  
...  
Keyword(s):  
Gene Conversion ◽  
Proton Beam ◽  
Dose Response ◽  
Mathematical Formulation ◽  
Semiconductor Surface ◽  
Proton Radiation ◽  
Mathematical Formula ◽  
Ion Accelerator ◽  
Experimental Values ◽  
Folded Tandem Ion Accelerator

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.

Status report on the folded tandem ion accelerator at BARC

Pramana ◽  
2002 ◽  
Vol 59 (5) ◽  
pp. 739-744 ◽  
Author(s):  
P Singh ◽  
S K Gupta ◽  
M J Kansara ◽  
A Agarwal ◽  
S Santra ◽  
...  
Keyword(s):  
Status Report ◽  
Ion Accelerator ◽  
Folded Tandem Ion Accelerator

scholarly journals Proton Induced X-ray Emission Studies Using Folded tandem Ion Accelerator (FOTIA) at Bhabha Atomic Research Centre (BARC), Trombay, Mumbai, India

2019 ◽  
Vol 18 (1) ◽  
pp. 47-54
Author(s):  
Daisy Joseph
Keyword(s):  
Research Centre ◽  
Geological Samples ◽  
Preparation Methods ◽  
Bhabha Atomic Research Centre ◽  
X Ray ◽  
Ion Accelerator ◽  
Forensic Samples ◽  
Intensity Ratios ◽  
Folded Tandem Ion Accelerator ◽  
Emission Studies

The Folded Tandem Ion Accelerator (FOTIA) at Van De Graaff was used to study PIXE (Particle-induced X-ray Emission) using protons of energy 3-5 MeV. It has been used for a variety of applications from studying intensity ratios, biological samples (blood), rare earth, materials (gold standards), geological samples (gemstones) pottery samples and forensic samples (ink). This article attempts to elucidate the preparation methods of the samples, the detectors used, the analysis and the findings therein for different applications.

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