Determination of neutron flux parameters in PUSPATI TRIGA Mark II Research Reactor, Malaysia

Abstract

In standardization NAA, it is necessary to characterize the neutron spectrum parameters such as epithermal neutron flux shape factor (a), thermal to epithermal neutron flux ratio (f), thermal neutron flux (u th ) and epithermal neutron flux (u epi ) in the irradiation facility to determine the concentration of an element in the sample using absolute and k 0 standardization methods. The a and f were determined using Cd-ratio multi monitor method using experimental data obtained in PUSPATI TRIGA Mark II research reactor at four irradiation positions (10, 20, 30 and 40) of the rotary rack. The calculated values of a and f ranged from 0.006 to 0.0281 and 18.56 to 19.12 respectively. The average values of u th and u epi were found as 2.33 9 10 12 and 1.23 9 10 11 n cm -2 s -1 respectively. Moreover, a comparison of the neutron flux parameters in the present study shows an acceptable level of consistency with those of previous studies.

Feasibility study of k 0-INAA at the ITU TRIGA Mark II research reactor, Turkey

“…For comparison, a and f values of four irradiation positions of three TRIGA Mark II reactors are given in Table 2. The a values are negative except for PUSPATI TRIGA Mark II, Malaysia and the f values of all reactors are higher than that of ITU TRIGA Mark II [13][14][15]. The uncertainties of a and f values reported are in the range of 13-41 and 1.3-4.5 %, respectively.…”

Development of underwater radiography scanner for reactor-pool experiment at the TRIGA PUSPATI reactor

“…This study is a first attempt towards conducting an underwater experiment to be carried out in the reasearch reactor TRIGA PUSPATI (RTP). The RTP is a pool type reactor, where the reactor core sits at the bottom of a 6.3 m height lined with aluminum [ 1 ]. The reactor uses solid fuel elements in which the zirconium-hydride moderator is homogeneously combined with enriched Uranium-235.…”

Implementación del método del triple monitor para la caracterización del flujo neutrónico del reactor nuclear de investigación IAN-R1

“…Finalmente, con el objetivo de validar y complementar la presente implementación, se debe procurar la caracterización del flujo de neutrones mediante técnicas adicionales, como el Au-Au/Cd y el método de relación de cadmio con multimonitor, que permite alcanzar bajas incertidumbres en la determinación del parámetro de simetría de los neutrones epitérmicos [18].…”