NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.49 [2011] >
IJPAP Vol.49(01) [January 2011] >


Title: Optimization of 1 MeV RFQ accelerator parameters for 9Be(d,n)10B based pulsed neutron source
Authors: Singh, A K
Baskaran, R
Selvakumaran, T S
Rao Sista, V L S
Singh, P
Keywords: Neutron source
Linear accelerator
Radio frequency quadrupole
Beam simulation
Issue Date: Jan-2011
Publisher: NISCAIR-CSIR, India
Abstract: Compact radio frequency quadrupole (RFQ) LINAC based pulsed neutron source is being built using 9Be(d,n)10B reaction for neutron shielding experiments, activation analysis and standardizing the neutron measurement techniques. It consists of an ion source, low energy beam transport, 1 MeV RFQ accelerator and a Beryllium target. The results of optimization study on RFQ accelerator, operating at 352 MHz have been presented. The main constraint in the design of RFQ is its length which should be of the order of 1.2 m. This helps in the fabrication process and making the neutron source compact. The RFQ beam simulation has been carried out using LIDOS RFQ code. The beam simulations have been carried out with conventional as well as non-conventional approaches for normal Ekilp (~1.8) and higher Ekilp (~2.2) values. The effect of the higher and lower input beam energy and beam emittance on the RFQ length has been studied. The RFQ beam simulation has been finalized to accelerate 25 keV deuterium ions to a final energy of 1 MeV with the transmission efficiency of 95% and for RFQ length of 1.19 m (including front and end flanges). The effect of deviation of various RFQ input parameters from the optimized value on the transmission efficiency of RFQ is analyzed in the error analysis. The RFQ 2D vane shape is optimized for the Q-value of 9135 and normalized maximum electric field gradient of 12.8 MV/m on the axis of RFQ using SUPERFISH code. The maximum surface electric field obtained in SUPERFISH is 32.76MV/m (Ekilp ~1.78) which matches to the results of LIDOS beam simulation
Page(s): 13-20
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(01) [January 2011]

Files in This Item:

File Description SizeFormat
IJPAP 49(1) 13-20.pdf214.85 kBAdobe PDFView/Open
 Current Page Visits: 651 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 570751 since 06-Feb-2009  Last updated on 14-Aug-2014Webmaster: nopr@niscair.res.in