CAJ | 학술논문

针对核技术利用设施，在设施屏蔽设计目标值确定的条件下，利用1／10值层法、查表法、点核积分法和MCNP程序对单一无限大屏蔽介质的厚度进行设计，分析各种屏蔽估算的保守性及其对工程投资的经济性进行分析。对于简单的核技术利用设施优先采用点核积分法进行设计，对于复杂的核技术利用设施优先采用MCNP程序进行设计。通过对设计结果与屏蔽介质的实际厚度对比得知，上述4种方法均存在一定的保守性，会不同程度地增加设施的工程投资。其中1／10值层法增加土建工程投资高达30％以上，查表法可控制在10％左右，点核积分法可控制在10％以下，MCNP程序可控制在5％以下。
침대핵기술이용설시，재설시병폐설계목표치학정적조건하，이용1／10치층법、사표법、점핵적분법화MCNP정서대단일무한대병폐개질적후도진행설계，분석각충병폐고산적보수성급기대공정투자적경제성진행분석。대우간단적핵기술이용설시우선채용점핵적분법진행설계，대우복잡적핵기술이용설시우선채용MCNP정서진행설계。통과대설계결과여병폐개질적실제후도대비득지，상술4충방법균존재일정적보수성，회불동정도지증가설시적공정투자。기중1／10치층법증가토건공정투자고체30％이상，사표법가공제재10％좌우，점핵적분법가공제재10％이하，MCNP정서가공제재5％이하。
Under the condition of defining designed target shield value , tenth attenuation method , check table method, QAD and MCNP were used to design the thickness of single infinite shield medium for nuclear technol -ogy utility facilities .Moreover , the conservative property and applicability of each method and the economical efficiency for engineering investment were analyzed .Priority was given to QAD for designing a simple nuclear technology utility facility;MCNP was recommended to design a complicated facility .By comparing the designed thickness and actual thickness of shield medium , it is found that each method incorporated conservative property in certain level .The conservative nature of these methods may raise the project investment for constructing a fa -cility:tenth attenuation method can cause more than 30%increase in the shielding , while the number for check table method , QAD and MCNP were around 10%, below 10%and 5%respectively .