課程設(shè)計(jì)基于MCNP的輻射屏蔽仿真與計(jì)算

1、核工程與核技術(shù)課程設(shè)計(jì)(報(bào)告)題 目 基于MCNP的輻射屏蔽仿真與計(jì)算 學(xué)院名稱 核科學(xué)技術(shù)學(xué)院 指導(dǎo)教師職稱 講 師 班 級(jí) 核工102班 學(xué) 號(hào)學(xué)生目 錄概述11設(shè)計(jì)項(xiàng)目名稱11.1 問題描述31.2幾何描述41.3 源描述51.4 其它數(shù)據(jù)說明51.5 運(yùn)行與結(jié)果62 設(shè)計(jì)項(xiàng)目名稱72.1 問題描述72.2幾何描述82.3 源描述92.4 其它數(shù)據(jù)說明92.5 運(yùn)行與結(jié)果103設(shè)計(jì)項(xiàng)目名稱113.1 問題描述113.2幾何描述123.3 源描述133.4 其它數(shù)據(jù)說明133.5 運(yùn)行與結(jié)果144設(shè)計(jì)項(xiàng)目名稱154.1 問題描述154.2幾何描述164.3 源描述174.4 其它數(shù)據(jù)說明1

2、74.5 運(yùn)行與結(jié)果185設(shè)計(jì)項(xiàng)目名稱195.1 問題描述195.2幾何描述205.3 源描述215.4 其它數(shù)據(jù)說明225.5 運(yùn)行與結(jié)果23心得體會(huì)總結(jié)27 / 281.1問題描述試對(duì)下面描述的問題進(jìn)行5000個(gè)中子，250次循環(huán)的臨界計(jì)算。1 如下圖所示，中間黑色部分為Pu 239(100%)圓筒，外圍包著的是天然U反射層，初始燃料源處于(3.5, 0, 0)點(diǎn)。1.2幾何描述PX視圖PY視圖PZ 視圖1.3材料與數(shù)據(jù)說明：Pu: 15.8g/ccPlutonium cylinder : radius=4.935cm height=6.909cmU: 18.8g/cc含量 ：238 99

3、.2745 235 0.72Uranium reflector thickness : 5.0 cmUranium reflector height : 6.909cm1.4程序描述C Cell Cards *1 1 -15.8 -1 2 -3 imp:n=1$Pu2 2 -18.8 -1 2 3 -4 imp:n=1$U3 0 #1 #2 imp:n=0$outspaceC Surface Cards *1 pz 5.9092 pz -13 cz 4.9354 cz 9.935C Data Cards *C Material Data Cardsm1 94239.60c 1m2 92238.

4、60c 9.92745E-1 92235.60c 7.2E-3c sdef kcode 5000 1.0 50 250ksrc 0 0 11.5運(yùn)行結(jié)果2.1問題描述2如下圖所示，中間黑色部分為Pu 239(100%)圓筒，外圍包著的是天然U反射層, 初始燃料源處于(3.5, 0, 0)點(diǎn)。2.2 材料與數(shù)據(jù)其數(shù)據(jù)如下：Pu: 15.8g/ccU: 18.8g/cc原子百分比 ：238 99.2745 235 0.722.3幾何描述PX視圖PY視圖PZ視圖2.4程序描述C Cell Cards *1 1 -15.8 -1 2 -3 imp:n=1$U2 2 -18.8 -4 5 -6 #1 i

5、mp:n=1$Pu3 0 #1 #2 imp:n=0$outspaceC Surface Cards *1 pz 5.9092 pz -13 cz 4.9354 pz 10.9095 pz -66 cz 9.935C Data Cards *C Material Data Cardsm1 94239.60c 1m2 92238.60c -0.992745 92235.60c -0.0072c sdef kcode 5000 1.0 50 250ksrc 0 0 12.5運(yùn)行結(jié)果3.1問題描述3. Exercise 3 is a bare (unreflected) UO2F2 solution

6、 cylinder.The weight percent of 235U in the uranium is 4.89 %. The solution has a radius of 20.12cm and a height of 100.0 cm. An aluminum tank with a thickness of 0.1587 cm on thesides and bottom, and a height of 110.0 cm contains the solution. There is no lid on thetank. The region from the top of

7、the solution to the top of the aluminum tank is void. Thedata for this problem follows:3.2材料與數(shù)據(jù)溶液密度：0.096586 atoms/b-cm 鋁密度：2.7g/cc溶液原子百分比：H1: 5.7058e-2，O8:3.2929e-2， F9: 4.3996e-3，U238 2.0909e-3U235 1.0889e-4初始燃料源位置（0 0 50）3.3幾何描述PX視圖PY視圖PZ視圖3.4程序描述C Cell Cards *1 1 9.686E-2 -2 3 -5 imp:n=1$RY2 2 -

8、2.7 (-1 3 5 -6):(-3 4 -6) imp:n=1$Al3 0 #1 #2 imp:n=0$outspaceC Surface Cards *1 pz 1002 pz 903 pz -104 pz -10.15875 cz 20.126 cz 20.2787C Data Cards *C Material Data Cardsm1 1001.60c 5.7058E-2 8016.60c 3.2929E-2 9019.60c 4.3996E-3 & 92238.60c 2.0909E-3 92235.60c 1.0889E-4m2 13027.60c 1c sdef kc

9、ode 5000 1.0 50 250ksrc 0 0 13.5運(yùn)行結(jié)果4.1問題描述4Exercise 4 consists of two identical U(93.4)O2F2 solution cylinders inside awater tank. Assume the water reflector density is 1 g/cc and has aminimum thickness of 20 cm except on one side of the first cylinder where the thicknessis only 10 cm. The height o

10、f the water is at the top of the open aluminum containers. Thedata for this problem is:初始燃料源位置：（0 0 35），（ 17 0 35）4.2幾何描述PX視圖PY視圖PZ視圖4.3程序描述C Cell Cards *1 1 9.9605E-2 -2 3 -10 imp:n=1 $fuel2 2 -2.7 (-1 3 10 -11):(-3 4 -11) imp:n=1 $container 3 0 -1 2 -10 imp:n=04 like 1 but trcl=(17 0 0) imp:n=1 $f

11、uel5 like 2 but trcl=(17 0 0) imp:n=1 $container6 like 3 but trcl=(17 0 0) imp:n=0 7 3 -1 -1 5 -6 7 -8 9 #1 #2 #3 #4 #5 #6 imp:n=1 $water 8 0 #1 #2 #3 #4 #5 #6 #7 imp:n=0 $spaceC Surface Cards *1 pz 902 pz 80.23 pz 10.154 pz 105 pz -106 py 26.57 py -26.58 px 43.59 px -16.510 cz 6.3511 cz 6.5C Data C

12、ards *C Material Data Cardsm1 1001.60c 6.2210E-2 8016.60c 3.3621E-2 9019.60c 2.5161E-3 & 92238.60c 8.2051E-5 92235.60c 1.1760E-3m2 13027.60c 1m3 1001.60c 2 8016.60c 1c sdef kcode 5000 1.0 50 250ksrc 0 0 14.4運(yùn)行結(jié)果5.1問題描述5Exercise 5 is a 3x2 array of plutonium nitrate solution cylinders. Plutonium

13、nitrate solution is contained in six stainless steel cylinders with a 10 cmsurface separation between tanks. The data for thisproblem are:鐵，鉻，鎳的同位素在材料中的原子百分比為：24050 7.195e-4 24052 1.38589e-224053 1.5713e-3 24054 3.903e-426056 3.704e-3 26056 5.80869e-2 26057 1.342e-326058 1.773e-428058 4.432e-3 28060

14、 1.7069-328061 7.42-e528062 2.363e-4 28064 6.05e-5初始燃料源位置為：（0 0 19.62）（35.58 0 19.62）（71.16 0 19.62）（0 35.58 19.62）（35.58 35.58 19.62）（71.16 35.58 19.62）5.2幾何描述PX視圖PY視圖PZ視圖5.3程序描述c cell cards*1 0 -1 2 -5 imp:n=02 1 9.927e-2 -2 3 -5 imp:n=13 2 8.636e-2 (-1 3 5 -6):(-3 4 -6) imp:n=14 0 #1 #2 #3 #11 #1

15、2 #13 #14 #15 #16 #17 #18 #19 #20 #21 #22 #23 #24 #25 imp:n=011 like 1 but trcl=(0 35.58 0) imp:n=0 12 like 2 but trcl=(0 35.58 0) imp:n=1 13 like 3 but trcl=(0 35.58 0) imp:n=1 14 like 1 but trcl=(35.58 0 0) imp:n=0 15 like 2 but trcl=(35.58 0 0) imp:n=1 16 like 3 but trcl=(35.58 0 0) imp:n=117 lik

16、e 1 but trcl=(35.58 35.58 0) imp:n=0 18 like 2 but trcl=(35.58 35.58 0) imp:n=1 19 like 3 but trcl=(35.58 35.58 0) imp:n=120 like 1 but trcl=(71.16 0 0) imp:n=0 21 like 2 but trcl=(71.16 0 0) imp:n=1 22 like 3 but trcl=(71.16 0 0) imp:n=123 like 1 but trcl=(71.16 35.58 0) imp:n=0 24 like 2 but trcl=

17、(71.16 35.58 0) imp:n=1 25 like 3 but trcl=(71.16 35.58 0) imp:n=1c surface cards*1 pz 1022 pz 39.543 pz 0.34 pz 05 cz 12.496 cz 12.79c data cards*c material data cardsm1 1001 6.0070E-2 8016 3.6540E-2 7014.60c 2.3699e-3 94239.60c 2.7682e-4 94240.60c 1.2214e-5 94241.60c 8.3390e-7 94242.60c 4.5800e-8m

18、2 24050.60c 7.195e-4 24052.60c 1.38589e-2 24053.60c 1.5713e-3 24054.60c 3.903e-4 26056.60c 3.704e-3 c sdef kcode 5000 1.0 50 250ksrc 0 0 19.62 35.58 0 19.62 71.16 0 19.62 0 35.58 19.62 35.58 35.58 19.62 71.16 35.58 19.625.4運(yùn)行結(jié)果MCNP學(xué)習(xí)心得三周六節(jié)課的課程設(shè)計(jì)結(jié)束了，在這個(gè)過程中我受益匪淺。能夠運(yùn)用MCNP進(jìn)行簡(jiǎn)單的堆芯模擬運(yùn)算，并且能夠讀懂較復(fù)雜的堆芯布置描述語句。然而，要真正掌握MCNP，還有很長(zhǎng)的路要走。學(xué)習(xí)過程中遇到了很多疑問，通過自己的思考和同學(xué)交流過程，逐步解決了一些問題。同時(shí)，查閱資料過程中進(jìn)一步掌握所學(xué)知識(shí)并探索到一些新的知識(shí)點(diǎn)。另外，聯(lián)系到大學(xué)所學(xué)的專業(yè)課程，實(shí)際的設(shè)計(jì)過程是對(duì)其一個(gè)很好的檢驗(yàn)。例如，怎樣將所學(xué)的編程語言知識(shí)和MCNP的程序卡聯(lián)系起來，只要學(xué)習(xí)了編程語言，這些抽象的數(shù)字會(huì)成為簡(jiǎn)潔的描述方式，用起來得心應(yīng)手，會(huì)變成形象的過程。這個(gè)過程應(yīng)該是真正把知識(shí)用于實(shí)踐，對(duì)于提高實(shí)踐能力又是一個(gè)很好的歷練過程。從另一個(gè)角度來看，此次學(xué)習(xí)和實(shí)踐