POLARIZATION OF Lℓ X-RAYS FROM NIOBIUM TARGET BOMBARDED WITH 0.84 MeV, 1.38 MeV AND 2.92 MeV PROTONS-Reference-Cited by-同舟云学术

POLARIZATION OF Lℓ X-RAYS FROM NIOBIUM TARGET BOMBARDED WITH 0.84 MeV, 1.38 MeV AND 2.92 MeV PROTONS

Published:2000-01 Issue:01n02 Volume:10 Page:63-69
ISSN:0129-0835
Container-title:International Journal of PIXE
language:en
Short-container-title:Int. J. PIXE

Author:

FUTATSUGAWA S.¹,ISHII K.²,YAMAMOTO K.²,MATSUYAMA S.²,YAMAZAKI H.²,SERA K.³,ORIHARA H.⁴

Affiliation:

1. Nishina Memorial Cyclotron Center, Japan Radioisotope Association, 348, Tomegamori, Takizawa, Iwate, 020-0173, Japan

2. Department of Quantum Science and Energy Engineering, Tohoku University, Aoba-ku, Aramaki, Aza-aoba, Sendai, 980-8579, Japan

3. Cyclotron Research Center, Iwate Medical University, 348, Tomegamori, Takizawa, Iwate, 020-0173, Japan

4. Cyclotron and Radioisotope Center, Tohoku University, Aoba-ku, Aramaki, Aza-aoba, Sendai, 980-8579, Japan

Abstract

The alignment effect on the L-shell ionization of Nb atom ( Z =41) by 0.84MeV, 1.38MeV and 2.92MeV proton impact was investigated. The polarization of L ℓ X-rays emitted from the aligned niobium target was measured with the crystal spectrometer combined with a position sensitive proportional counter. The experimental values of the degree of alignment A 2 were compared with the prediction of PWBA theory. It results that the experimental value of A 2 in 1.38MeV proton impact was much larger than the theoretical one, and A 2 of 0.84MeV almost coincides with that of 2.92MeV.

Publisher

World Scientific Pub Co Pte Lt

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0129083500000092

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