THE SCINTILLATION EFFICIENCY OF SODIUM AND IODINE RECOILS IN A NAI(TL) DETECTOR FOR DARK-MATTER SEARCHES

被引：70

作者：

SPOONER, NJC

DAVIES, GJ

DAVIES, JD

PYLE, GJ

BUCKNELL, TD

SQUIER, GTA

LEWIN, JD

SMITH, PF

机构：

[1] IMPERIAL COLL SCI TECHNOL & MED, BLACKETT LAB, LONDON SW7 2BZ, ENGLAND

[2] UNIV BIRMINGHAM, DEPT PHYS, BIRMINGHAM B15 2TT, W MIDLANDS, ENGLAND

[3] RUTHERFORD APPLETON LAB, CHILTON OX11 0QX, OXON, ENGLAND

来源：

PHYSICS LETTERS B | 1994年 / 321卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(94)90343-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Searches for weakly interacting massive particles that may constitute the Galactic dark matter can be based on the detection of nuclear recoil events in NaI(Tl) scintillation detectors. For this purpose it is necessary to know the relative scintillation efficiency for nuclear recoil events. Presented here are the results of measurements of the efficiency for conversion of low energy I and Na nuclear recoil events into scintillation light in Nai(Tl). The experiments were performed using elastic scattering of monoenergetic neutrons of energy 3.2-5.5 MeV. The relative scintillation efficiency was found to be about 30% for Na recoils, down to 15 keV, and 8% for I recoils, down to 27 keV.

引用

页码：156 / 160

页数：5

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