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The SHIELD transport code http://www.inr.ru/shield/ . Since 1970. An original Russian code based on nuclear models developed in JINR (Dubna) and INR RAS. The current version of SHIELD has the same scope as MCNPX, FLUKA, PHITS, Geant4: accelerator driven systems (ADS), space environment, hadron therapy https://svn.nfit.au.dk/trac/shieldhit , deep underground experiments etc. 10 -7 10 -5 10 -3 10 -1 10 1 10 3 10 5 10 -8 10 -6 10 -4 10 -2 10 0 10 2 10 4 10 6 N eutron albedo fro m L u n a r su rfa ce (G C R ,S olar m in) A lbe d o n e u tro n flu x, cm -2 sec -1 M eV -1 E n e rg y, M eV SH IE LD MCNPX FLUKA 20 22 24 26 28 30 0 5 10 15 20 25 D ecom p ositio n o f B ragg curve on LE T. P ro to n 2 0 2 M eV in w a te r. M eV /(cm *p ro jectile) LE T in eV /nm % All_LET 100 [0 -5 ] 9 3.4 [5 -1 0] 3.2 [1 0-20 ] 1.5 [2 0-30 ] 0.47 [3 0-40 ] 0.23 [4 0-50 ] 0.15 [5 0-60 ] 0.11 [6 0-80 ] 0.20 [8 0-10 0 ] 0.09 [> 1 0 0] 0.65 20 22 24 26 28 30 0 50 100 150 200 250 300 D ecom po sitio n of B ragg curve on LE T. Ion 12 C 391 M eV /A in w ater. M e V /(cm *proje ctile) D e pth, cm LE T in eV /nm % All_LE T 100 [0-5] 19.5 [5-20] 61.1 [20-40] 12.0 [40-60] 2.9 [60-80] 1.3 [80-100] 0.71 [100-150] 0.89 [150-220] 0.57 [220-400] 0.50 [400-700] 0.30 [700-1000] 0.19 [1000-2000] 0.04 0 1 2 3 4 5 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10 P ro jectile d p Li Be B C N O Ne E nergy costof n eu tron yie ld fro m P b-ta rge t (R=10,L=60cm ) E n e rg y co st o f n e u tro n, G eV /neutron P ro jectile en e rg y, G eV /A

The SHIELD transport code inr.ru/shield

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The SHIELD transport code http://www.inr.ru/shield/ . Since 1970. An original Russian code based on nuclear models developed in JINR (Dubna) and INR RAS. - PowerPoint PPT Presentation

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The SHIELD transport code http://www.inr.ru/shield/. Since 1970. An original Russian code based on nuclear models developed in JINR (Dubna) and INR RAS.

The current version of SHIELD has the same scope as MCNPX, FLUKA, PHITS, Geant4: accelerator driven systems (ADS), space environment, hadron therapy https://svn.nfit.au.dk/trac/shieldhit, deep underground experiments etc.

10-7 10-5 10-3 10-1 101 103 10510-8

10-6

10-4

10-2

100

102

104

106

Neutron albedofrom Lunar surface(GCR, Solar min)

Alb

edo

neut

ron

flux,

cm

-2 s

ec-1 M

eV-1

Energy, MeV

SHIELD MCNPX FLUKA

20 22 24 26 28 300

5

10

15

20

25

Decomposition ofBragg curve on LET.

Proton 202 MeVin water.

MeV

/(cm

*pro

ject

ile)

LET in eV/nm % All_LET 100 [0-5] 93.4 [5-10] 3.2 [10-20] 1.5 [20-30] 0.47 [30-40] 0.23 [40-50] 0.15 [50-60] 0.11 [60-80] 0.20 [80-100] 0.09

[>100] 0.65

20 22 24 26 28 300

50

100

150

200

250

300Decomposition of

Bragg curve on LET.Ion 12C 391 MeV/A

in water.

MeV

/(cm

*pro

ject

ile)

Depth, cm

LET in eV/nm % All_LET 100 [0-5] 19.5 [5-20] 61.1 [20-40] 12.0 [40-60] 2.9 [60-80] 1.3 [80-100] 0.71 [100-150] 0.89 [150-220] 0.57 [220-400] 0.50 [400-700] 0.30 [700-1000] 0.19 [1000-2000] 0.04

0 1 2 3 4 50.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10Projectile

dpLiBe

BC

N

O

NeEnergy cost ofneutron yield

from Pb-target(R=10, L=60cm)

Ene

rgy

cost

of n

eutro

n, G

eV/n

eutro

n

Projectile energy, GeV/A