A method for the measurement of the absolute value of the average energy to produce an ion pair in noble gases with X-rays

Author

Borges, Filipa I G M ; Conde, C.A.N.

Author_Institution

Dept. of Phys., Coimbra Univ., Portugal

fYear

1992

fDate

25-31 Oct 1992

Firstpage

85

Abstract

A method is described that allows the measurement of the absolute value of the average energy to produce an ion pair in noble gases for soft X-rays and its energy dependence. It uses a specially designed gas proportional scintillation counter working under electric fields below the ionization threshold. The spectrum of the radiation absorbed, and thus the number of photons detected at each energy for a period of time of the order of a minute, are measured with the scintillation counter, and at the same time the total primary electron charge produced is collected in one of the grids and measured with an electrometer

Keywords

inert gases; molecular photoionisation; proportional counters; scintillation counters; absolute value; average energy; gas proportional scintillation counter; ion pair production; noble gases; soft X-rays; Charge measurement; Current measurement; Energy measurement; Gases; Ionization; Radiation detectors; Scintillation counters; Solid scintillation detectors; Time measurement; X-rays;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE

Conference_Location

Orlando, FL

Print_ISBN

0-7803-0884-0

Type

conf

DOI

10.1109/NSSMIC.1992.301148

Filename

301148