POLARIZER ANALYZER FILTER FOR NUCLEAR RESONANT SCATTERING OF SYNCHROTRON-RADIATION

被引：57

作者：

TOELLNER, TS

ALP, EE

STURHAHN, W

MOONEY, TM

ZHANG, X

ANDO, M

YODA, Y

KIKUTA, S

机构：

[1] NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY,TSUKUBA,IBARAKI 305,JAPAN

[2] UNIV TOKYO,FAC ENGN,DEPT APPL PHYS,BUNKYO KU,TOKYO 113,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 14期

关键词：

D O I：

10.1063/1.114764

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A silicon (840) channel-cut crystal with a large asymmetry is used to linearly polarize synchrotron radiation generated by an undulator source at the 14.413 keV nuclear resonance of Fe-57. The resulting <(sigma)over cap>-polarized radiation is then scattered from an Fe-57 foil placed in a magnetic field that effects <(sigma)over cap>--><(pi)over cap> polarization conversion within the resonant bandwidth. A second crystal of the same type is placed in a crossed position to suppress the nonresonant radiation while transmitting the <(pi)over cap>-polarized resonant radiation. A polarization suppression factor of 6X10(-7) has been obtained. The suppression of the nonresonant radiation allowed monitoring the decay of the nuclear levels after 1 ns of their excitation. (C) 1995 American Institute of Physics.

引用

页码：1993 / 1995

页数：3

共 8 条

[1]

ALP EE, 1993, SPIE P, V1740, P95

[2] REPORT ON THE X-RAY EFFICIENCY AND TIME RESPONSE OF A 1-CM(2) REACH THROUGH AVALANCHE-DIODE [J].