THE EFFECTS OF BORON ON THE ELECTRON-PARAMAGNETIC-RESONANCE SPECTRA OF ALANINE IRRADIATED WITH THERMAL-NEUTRONS

被引：10

作者：

CIESIELSKI, B

WIELOPOLSKI, L

机构：

[1] BROOKHAVEN NATL LAB,DEPT MED,UPTON,NY 11973

[2] MED ACAD GDANSK,DEPT PHYS & BIOPHYS,PL-80211 GDANSK,POLAND

来源：

RADIATION RESEARCH | 1995年 / 144卷 / 01期

关键词：

D O I：

10.2307/3579236

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The effects of boric acid admixture on the intensity and line structure of EPR spectra of free radicals produced in alanine by thermal neutrons are presented. The EPR signal enhancement, up to a factor of 40 depending on the boron concentration, is related to additional energy deposition in alanine crystals by the disintegration products resulting from the capture of a thermal neutron by boron, B-10(n,alpha)Li-7. The changes in the shape of the EPR spectra observed by changing the microwave power are due to the differences in the microwave power saturation of the free radicals produced by a low-LET radiation and those produced by the high-LET components of the radiation after the neutron capture reaction. (C) 1995 by Radiation Research Society

引用

页码：59 / 63

页数：5

共 27 条

[1]

BARTH RF, 1992, CANCER-AM CANCER SOC, V70, P2995

[2] THE EFFECTS OF DOSE AND RADIATION QUALITY ON THE SHAPE AND POWER SATURATION OF THE EPR SIGNAL IN ALANINE [J].