☢️ 核物理工具☢️ Nuclear Physics Tools

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☢️ 核物理工具☢️ Nuclear Physics Tools

共 28个免费在线工具

放射性定年计算器Age from Activity输入衰变常数 λ、初始核数 N₀ 与现存核数 N，按 t = (1/λ)·ln(N₀/N) 反推样品年龄。用于放射性同位素定年（如碳十四、铀系法）的年限估算。Back-calculate sample age from decay constant, initial and present nuclide counts. Used in radiometric dating such as c… 碳十四测年计算器Carbon Dating Age碳十四测年计算器依据样品剩余碳-14 比例与半衰期反推年代，适合考古、地质与古生物样品的年龄估算（仅有机材料）。Estimate the age of a sample from its remaining carbon-14 fraction and the half-life. For archaeology, geology and pale… 半衰期计算器Half Life from Lambda半衰期计算器依据 t½=ln2/λ 由衰变常数求半衰期，输入 λ 输出半衰期，适合放射性衰变模型的参数换算与习题求解。Derive half-life from the decay constant using t½ = ln2/λ. For radioactive decay model parameter conversion and exercis… 比结合能计算器Binding Energy Per Nucleon比结合能在线计算器，输入原子核质量数与原子质量，用质能方程求得每核子结合能，反映核稳定性，适合核物理教学，纯前端运行。Enter mass number and atomic mass to get binding energy per nucleon from the mass-energy relation, indicating nuclear s… 比活度计算器Specific Activity from Halflife由半衰期与摩尔质量求比活度Compute specific activity in Bq/g from half-life in seconds and molar mass. For radiopharmaceutical preparation and sou… 核裂变总能产额计算器Fission Energy Yield核裂变总能产额计算器估算一次裂变释放的总能量（含碎片动能与中子能），适合核物理教学与反应堆能量平衡的概略计算。Estimate total energy released per fission including fragment kinetic and neutron energy. For nuclear physics teaching… 电子湮灭光子能量计算器Pair Annihilation基于电子-正电子湮灭产生两个 511 keV 光子的物理事实，计算或说明湮灭光子的能量（对应电子静质量 0.511 MeV）。用于 PET 显像、正电子湮灭原理演示。Based on the 511 keV photons produced by electron-positron annihilation, compute or explain the photon energy (electron… 平均寿命计算器Mean Life平均寿命计算器求放射性核素在指数衰变下的平均存活时间 τ=1/λ，适合核物理、放射化学与示踪实验中的衰变特征描述。Compute the average survival time of a radionuclide under exponential decay. Describes decay behaviour in nuclear physi… 放射性衰变计算器Radioactive Decay放射性衰变计算器依指数律 N=N₀e^(−λt) 求随时间衰减的原子核数目，输入初始量与时间输出剩余量，适合核物理与放射计量。Apply the exponential law N = N₀e^(−λt) to find remaining nuclei from an initial amount, decay constant and elapsed tim… 比活度计算器Specific Activity比活度计算器求单位质量放射性物质的活度（Bq/g），由半衰期与原子量换算，适合放射源配制、核医学与示踪实验的参数确定。Find activity per unit mass in Bq/kg from half-life and atomic weight. For source preparation, nuclear medicine and tra… 活度衰减计算器Activity Decay活度衰减计算器依据放射性衰变定律求初始活度随时间的衰减，输入半衰期与时刻输出剩余活度，适合核物理学习与辐射防护估算。Apply the radioactive decay law to find remaining activity from an initial value, half-life and elapsed time. For nucle… 衰变常数计算器Decay Constant衰变常数计算器由半衰期求取放射性核素的衰变常数，用于衰变律 N=N₀e^(−λt) 中的速率参数，适合核物理习题与建模。Derive the decay constant of a radionuclide from its half-life, for the rate parameter in N = N₀e^(−λt). Useful for nuc… 质量亏损计算器Mass Defect质量亏损计算器求组成原子核的核子质量之和与原子核实际质量之差，该差值对应结合能，适合核物理中的质量-能量关系学习。Find the difference between the summed free nucleon masses and the actual nuclear mass; the difference corresponds to b… 原子核结合能计算器Binding Energy原子核结合能计算器求核子结合成原子核释放的能量，由质量亏损乘 c² 得到，适合核物理学习与核反应能量评估。Find the energy released when nucleons bind into a nucleus, from mass defect times c². For nuclear physics learning and… 原子核半径计算器Nuclear Radius输入原子核质量数 A，按 R = r₀·A^{1/3}（r₀≈1.2 fm）估算核半径。用于核物理教学与核尺寸、核密度相关推算。Estimate nuclear radius from mass number using R = r₀·A^(1/3) with r₀ ≈ 1.2 fm. For nuclear physics teaching and nuclea… 核反应率计算器Reaction Rate由中子通量、截面与靶核数求反应率Compute reactions per second from neutron flux, microscopic cross section and target nuclei count. For reactor physics… γ 射线衰减计算器Gamma Attenuation由线性衰减系数与厚度求透射强度Compute transmitted intensity from initial intensity, linear attenuation coefficient and material thickness. Used in sh… 剂量当量计算器Dose Equivalent由吸收剂量与品质因数求剂量当量Multiply absorbed dose by the radiation weighting factor to get dose equivalent in sieverts, comparing biological harm… 吸收剂量计算器Absorbed Dose由沉积能量与质量求吸收剂量Compute absorbed dose from deposited energy and irradiated mass using D = E/m in grays. For radiation protection dose e… 有效半衰期计算器Effective Halflife由物理与生物半衰期求有效半衰期Combine physical and biological half-lives to obtain the effective half-life of a radionuclide in the body 核反应 Q 值计算器Q Value核反应 Q 值计算器依据反应前后质量差乘 c² 求能量释放或吸收，判断核反应放能或吸能，适合核物理学习与反应堆、聚变分析。Compute released or absorbed energy from the mass difference before and after a reaction times c², determining whether… 核素存活概率计算器Survival Probability由衰变常数与时间求存活概率Compute the probability that a nucleus has not yet decayed from decay constant and elapsed time. For quick estimates of… 衰变份额计算器Decay Fraction由衰变常数与时间求已衰变份额Compute the fraction of nuclei that have decayed from decay constant and elapsed time. Used to assess source depletion… 放射性活度计算器Calculate nuclear decays per unit time…放射性活度计算器求单位时间内的核衰变数（贝可勒尔 Bq），依据核数与衰变常数换算，适合放射化学与核医学中的活度量化。Calculate nuclear decays per unit time in becquerels from decay constant and number of nuclei. Suitable for radiochemis… 由活度与核数求半衰期Half Life from Activity Nuclei由核数与活度反推半衰期工具依据 t½=N·ln2/A 由核素总数与活度求半衰期，适合放射性样品特性反算与核物理练习。Back-solve half-life from total nuclide number and measured activity. For radioactive sample characterisation and nucle… 由半衰期求平均寿命Mean Life from Halflife由半衰期求平均寿命工具依据 τ=t½/ln2 将半衰期换算为平均寿命，输入半衰期（年）输出 τ，适合核衰变统计特征换算。Convert half-life to mean life with τ = t½/ln2. Enter half-life in years to get τ, for nuclear decay statistics convers… 由半衰期求衰变常数Decay Constant from Halflife由半衰期求衰变常数工具依据 λ=ln2/t½ 将半衰期换算为衰变常数，输入半衰期（秒）输出 λ，适合核衰变模型参数换算。Convert half-life to decay constant with λ = ln2/t½. Enter half-life in seconds to get λ, for radionuclide decay model… 由半衰期与核数求活度Activity from Halflife输入放射性核素半衰期 t½ 与原子核数 N，按 A = (ln2 / t½)·N 计算衰变活度（贝可勒尔 Bq）。用于核物理、放射源活度估算与衰变计算。Compute decay activity in becquerels from radionuclide half-life and number of atoms. For nuclear physics, source activ…
📖关于「核物理工具」About Nuclear Physics Tools▼

📝栏目简介

核物理工具集合收录了 28 个免费在线工具，覆盖核物理场景下的常见计算、换算与查询需求。无论你是相关领域的从业者、学生还是普通用户，都能在这里找到即用即走的实用小工具。所有工具纯前端运行，数据不上传服务器，保护隐私安全。This collection gathers 28 free online Nuclear Physics tools for everyday calculations, conversions and lookups. Whether you are a professional, a student or a casual user, you will find handy tools you can use right away. Everything runs client-side — no data is uploaded.

✨核心功能与适用场景

本页收录的核物理工具包括（部分代表工具）：Featured Nuclear Physics tools on this page include:

  • 放射性定年计算器Age from Activity
  • 半衰期计算器Half Life from Lambda
  • 比结合能计算器Binding Energy Per Nucleon
  • 核裂变总能产额计算器Specific Activity from Halflife
  • 电子湮灭光子能量计算器Pair Annihilation
  • 放射性衰变计算器Radioactive Decay
  • 比活度计算器Specific Activity
  • 衰变常数计算器Activity Decay
  • 质量亏损计算器Mass Defect
  • 原子核半径计算器Nuclear Radius
  • γ 射线衰减计算器Reaction Rate
  • 剂量当量计算器Gamma Attenuation
  • 有效半衰期计算器Absorbed Dose
  • 核反应 Q 值计算器Q Value
  • 衰变份额计算器Survival Probability
  • 放射性活度计算器Decay Fraction
  • 由半衰期求平均寿命Mean Life from Halflife
  • 由半衰期求衰变常数Activity from Halflife

这些工具帮助你快速完成核物理相关的常见任务，无需记忆复杂公式或手动换算，输入即可得结果。These tools help you complete Nuclear Physics tasks quickly — no formulas to memorise and no manual conversion, just enter your values and get the result.

❓常见问题

核物理分类下的工具需要下载或注册吗？Do Nuclear Physics tools require any download or sign-up?

不需要。本页 28 个核物理工具（如放射性定年计算器、半衰期计算器、比结合能计算器、核裂变总能产额计算器、电子湮灭光子能量计算器、放射性衰变计算器）都是纯前端页面，打开网页即可使用，无需安装软件、无需注册账号；输入的数据只在你的浏览器内处理，不会上传服务器。No. The 28 Nuclear Physics tools on this page (including Age from Activity, Half Life from Lambda, Binding Energy Per Nucleon, Specific Activity from Halflife, Pair Annihilation, Radioactive Decay) are pure front-end pages: just open them and start using. No software to install, no account needed, and anything you enter is processed inside your browser — never uploaded.

核物理工具的结果能直接用于医疗、法律或财务决策吗？Can the results be used directly for medical, legal or financial decisions?

不能直接作为决策依据。本页工具多为通用计算、换算与查询，结果仅供日常参考；涉及诊断、诉讼、投资、工程验收等专业场景，请以权威标准、原始仪器读数或持证专业人士的结论为准。所有运算都在本地完成，数据不上传。No — treat them as everyday references only. Most tools here are general-purpose calculators, converters and lookups; for diagnosis, litigation, investment or engineering acceptance, rely on authoritative standards, raw instrument readings or a licensed professional. Everything is computed locally and nothing is uploaded.