CALCULATION OF LET-SPECTRA OF HEAVY COSMIC-RAY NUCLEI AT VARIOUS ABSORBER DEPTHS

被引：57

作者：

HEINRICH, W ^{[1
]}

机构：

[1] GESAMT HSCH SIEGEN,FACHBEREICH PHYS,D-5900 SIEGEN 21,FED REP GER

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1977年 / 34卷 / 1-3期

关键词：

IONS - Beam Tracking;

D O I：

10.1080/00337577708233140

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The calculation is based on a factorization of fragmentation cross-sections into a projectile-depending and a target-depending part, which was found at Bavalac for high energy C and O ions. With this the known cross-sections for the fragmentation of heavy ions in collision with protons can be extrapolated to heavier targets. Considering the fragmentation and the energy loss of heavy nuclei the energy spectra of individual elements are calculated for different depths of absorber. This energy spectra can easily be converted to LET (linear energy transfer) spectra. The changes of the isotopic composition with absorber depth and its influence on the shape of the LET-spectra are discussed. The calculated results are compared with experimental data.

引用

页码：143 / 148

页数：6

共 20 条

[1] ATTENUATION OF COSMIC-RAY HEAVY-NUCLEI FLUXES IN UPPER-ATMOSPHERE BY FRAGMENTATION [J].

ALLKOFER, OC ;

HEINRICH, W .

NUCLEAR PHYSICS B, 1974, B 71 (03) :429-438

[2] FLUX OF COSMIC-RAY HEAVY-NUCLEI ENDERS BEHIND LOW SHIELDING [J].

ALLKOFER, OC ;

HEINRICH, W .

JOURNAL OF SPACECRAFT AND ROCKETS, 1975, 12 (02) :119-121

[3]

ALLKOFER OC, 1974, HLTH PHYS, V27, P593

[4]

BEAUJEAN R, 1975, COSPAR M VARNA

[5] HEAVY COSMIC-RAY EXPOSURE OF APOLLO-17 ASTRONAUTS [J].

BENTON, EV ;

HENKE, RP ;

BAILEY, JV .

HEALTH PHYSICS, 1974, 27 (01) :79-85

[6] The calibration of Ediacaran time [J].

Kaufman, AJ .

SCIENCE, 2005, 308 (5718) :59-60

[7]

BENTON EV, 1968, USNRDLTR6814 NAV RAD

[8]

Bucker H, 1973, Life Sci Space Res, V11, P295

[9]

BUCKER H, 1976, 19TH COSP M PHIL

[10]

BUCKER H, 1974, SP330 NASA AP 17 PRE

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