MEASUREMENT OF THE PHOTON ENERGY-ABSORPTION COEFFICIENT FOR AIR, NITROGEN AND ARGON AT 30-KEV

被引：9

作者：

BAN, S

HIRAYAMA, H

NAMITO, Y

TANAKA, S

NAKASHIMA, H

NAKANE, Y

YOSHIZAWA, M

NARIYAMA, N

机构：

[1] JAPAN ATOM ENERGY RES INST,TOKAI,IBARAKI 31911,JAPAN

[2] SHIP RES INST,MITAKA,TOKYO 181,JAPAN

来源：

APPLIED RADIATION AND ISOTOPES | 1993年 / 44卷 / 04期

关键词：

D O I：

10.1016/0969-8043(93)90147-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A parallel plate free-air ionization chamber was filled with air, nitrogen and argon, and the ionization current was measured for 30-keV monoenergetic incident photons, using a synchrotron radiation source. The photon intensity was measured using a total absorption calorimeter placed behind the chamber. Because the W value for each gas is accurately known, photon mass energy-absorption coefficients for each gas were measured. The measured coefficients are in agreement with published tables by Hubbell within 2%.

引用

页码：769 / 772

页数：4

共 10 条

[1] DESIGN OF BEAMLINE 14 FOR THE PF VERTICAL WIGGLER AND ITS OPERATION [J].