✦ LIBER ✦

A low cost nuclear technique for the rapid determination of the protein content of rice

✍ Scribed by M. Hussain; M. Hoque

Publisher: Elsevier Science
Year: 1988
Weight: 216 KB
Volume: 39
Category: Article
ISSN: 0883-2889
DOI: 10.1016/0883-2889(88)90031-7

No coin nor oath required. For personal study only.

✦ Synopsis

An attempt has been made to use the 10.82 MeV ;' rays emitted in the prompt "'N (n, ;!) reaction to investigate the feasibility of determining the content of nitrogen in bulk samples of rice using a '52Cf source. Gamma ray spectra of samples of urea (H,NCONH>) irradiated with thermal neutrons from a 2T2Cf source with a yield of 3.0 x 10' neutrons/s clearly showed the full energy peak and escape peaks due to y-rays from neutron capture in nitrogen. A 3 x 3 in. NaI(TI) crystal was used as the detector and the neutrons were thermalized in paraffin before their capture. The 10.82 Mev y-rays from neutron irradiated rice have been detected using the weak neutron source. It appears that the method should be useful for rapid determination of the nitrogen content in rice if a stronger californium source were employed. This should enable a rapid determination of the protein content. as this is correlated with the amount of nitrogen in the rice.

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