.. _v_and_v_vera: ======= VERA ======= VERA系列基准问题计算条件如下： 1. CRANE用户输入文件与 :ref:`examples_vera` 基准题示例中一致； 2. CRANE版本号 ``1.3.3``； .. _vv_vera_1: ------------ VERA_1 ------------ VERA_1系列基准题包含1A-1E总共5个不同类型的两维单栅元问题，主要考察程序对于典型压水堆栅元反应性的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_1a` 至 :ref:`vera_1e`。参考解取至 `参考文献`_ [1]，由蒙卡程序KENO-VI计算获得。 CRANE与KENO-VI的 **keff** 比较如下表： .. table:: VERA_1 keff of CRANE vs. KENO-VI :align: center +------------+---------------------+------------------+-------------------+ | Problem | KENO-VI | CRANE | Deviation (pcm) | +============+=====================+==================+===================+ | 1A | 1.187038 ± 0.000054 | 1.187420 | 38 | +------------+---------------------+------------------+-------------------+ | 1B | 1.182149 ± 0.000068 | 1.182847 | 70 | +------------+---------------------+------------------+-------------------+ | 1C | 1.171722 ± 0.000072 | 1.172154 | 43 | +------------+---------------------+------------------+-------------------+ | 1D | 1.162603 ± 0.000071 | 1.163494 | 89 | +------------+---------------------+------------------+-------------------+ | 1E | 0.771691 ± 0.000076 | 0.772263 | 57 | +------------+---------------------+------------------+-------------------+ .. _vv_vera_2: ------------ VERA_2 ------------ VERA_2系列基准题包含2A-2Q总共17个不同类型的两维单组件问题，主要考察程序对于典型压水堆组件反应性和棒功率分布的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_2a` 至 :ref:`vera_2q`。参考解取至 `参考文献`_ [1]，由蒙卡程序KENO-VI计算获得。 CRANE与KENO-VI的 **keff** 比较如下表： .. table:: VERA_2 keff of CRANE vs. KENO-VI :align: center +------------+---------------------+------------------+-------------------+ | Problem | KENO-VI | CRANE | Deviation (pcm) | +============+=====================+==================+===================+ | 2A | 1.182175 ± 0.000017 | 1.182086 | -9 | +------------+---------------------+------------------+-------------------+ | 2B | 1.183360 ± 0.000024 | 1.183598 | 24 | +------------+---------------------+------------------+-------------------+ | 2C | 1.173751 ± 0.000023 | 1.173822 | 7 | +------------+---------------------+------------------+-------------------+ | 2D | 1.165591 ± 0.000023 | 1.165792 | 20 | +------------+---------------------+------------------+-------------------+ | 2E | 1.069627 ± 0.000024 | 1.070722 | 109 | +------------+---------------------+------------------+-------------------+ | 2F | 0.976018 ± 0.000026 | 0.976414 | 40 | +------------+---------------------+------------------+-------------------+ | 2G | 0.847695 ± 0.000025 | 0.852991 | 530 | +------------+---------------------+------------------+-------------------+ | 2H | 0.788221 ± 0.000025 | 0.792123 | 390 | +------------+---------------------+------------------+-------------------+ | 2I | 1.179916 ± 0.000024 | 1.179820 | -10 | +------------+---------------------+------------------+-------------------+ | 2J | 0.975193 ± 0.000025 | 0.975643 | 45 | +------------+---------------------+------------------+-------------------+ | 2K | 1.020063 ± 0.000025 | 1.019980 | -8 | +------------+---------------------+------------------+-------------------+ | 2L | 1.018915 ± 0.000024 | 1.017833 | -108 | +------------+---------------------+------------------+-------------------+ | 2M | 0.938796 ± 0.000025 | 0.937643 | -115 | +------------+---------------------+------------------+-------------------+ | 2N | 0.869615 ± 0.000025 | 0.868862 | -75 | +------------+---------------------+------------------+-------------------+ | 2O | 1.047729 ± 0.000024 | 1.047698 | -3 | +------------+---------------------+------------------+-------------------+ | 2P | 0.927410 ± 0.000024 | 0.928160 | 75 | +------------+---------------------+------------------+-------------------+ | 2Q | 1.171940 ± 0.000016 | 1.171953 | 1 | +------------+---------------------+------------------+-------------------+ :ref:`vera_2a` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2A.png :align: center :figclass: align-center :width: 800px :ref:`vera_2b` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2B.png :align: center :figclass: align-center :width: 800px :ref:`vera_2c` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2C.png :align: center :figclass: align-center :width: 800px :ref:`vera_2d` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2D.png :align: center :figclass: align-center :width: 800px :ref:`vera_2e` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2E.png :align: center :figclass: align-center :width: 800px :ref:`vera_2f` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2F.png :align: center :figclass: align-center :width: 800px :ref:`vera_2g` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2G.png :align: center :figclass: align-center :width: 800px :ref:`vera_2h` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2H.png :align: center :figclass: align-center :width: 800px :ref:`vera_2i` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2I.png :align: center :figclass: align-center :width: 800px :ref:`vera_2j` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2J.png :align: center :figclass: align-center :width: 800px :ref:`vera_2k` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2K.png :align: center :figclass: align-center :width: 800px :ref:`vera_2l` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2L.png :align: center :figclass: align-center :width: 800px :ref:`vera_2m` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2M.png :align: center :figclass: align-center :width: 800px :ref:`vera_2n` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2N.png :align: center :figclass: align-center :width: 800px :ref:`vera_2o` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2O.png :align: center :figclass: align-center :width: 800px :ref:`vera_2p` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2P.png :align: center :figclass: align-center :width: 800px :ref:`vera_2q` 问题CRANE与KENO-VI的棒功率分布比较如下： .. figure:: ../_images/vv_VERA_2Q.png :align: center :figclass: align-center :width: 800px .. _vv_vera_3: ----------------- VERA_3 ----------------- VERA_3系列基准题包含3A、3B两个三维单组件问题，两个问题最大的差别是有无Pyrex可燃毒物棒， 主要考察程序对于典型压水堆组件反应性、棒功率分布和轴向功率分布的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_3a`、:ref:`vera_3b`。参考解取至 `参考文献`_ [1]，由蒙卡程序KENO-VI计算获得。 VERA_3A ----------- :ref:`vera_3a` 问题CRANE与KENO-VI计算结果的比较如下： .. figure:: ../_images/vv_VERA_3A_summary.png :align: center :figclass: align-center :width: 800px | 其中棒功率分布偏差如下图： .. figure:: ../_images/vv_VERA_3A_pin_power.png :align: center :figclass: align-center :width: 800px 其中轴向功率分布偏差如下图： .. figure:: ../_images/vv_VERA_3A_axial_power.png :align: center :figclass: align-center :width: 800px VERA_3B ----------- :ref:`vera_3b` 问题CRANE与KENO-VI计算结果的比较如下： .. figure:: ../_images/vv_VERA_3B_summary.png :align: center :figclass: align-center :width: 800px | 其中棒功率分布偏差如下图： .. figure:: ../_images/vv_VERA_3B_pin_power.png :align: center :figclass: align-center :width: 800px 其中轴向功率分布偏差如下图： .. figure:: ../_images/vv_VERA_3B_axial_power.png :align: center :figclass: align-center :width: 800px .. _vv_vera_4: ----------------- VERA_4 ----------------- VERA_4系列基准题是三维3x3组件问题，可燃毒物棒组件交替布置，中心组件插有控制棒，需要计算控制棒的微分价值曲线。 主要考察程序对于不同棒位情况下组件反应性、组件功率分布和轴向功率分布的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_4`。参考解取至 `参考文献`_ [1]，由蒙卡程序KENO-VI计算获得。 CRANE的计算结果如下表： .. table:: VERA_4 result of CRANE :align: center +--------------+-----------+-------------+-----------+-----------+------------------+ | Rod Position | Withdrawn | k-effective | DRW (pcm) | IRW (pcm) | Axial Offset (%) | +==============+===========+=============+===========+===========+==================+ | 257.9 cm | -- | 0.999247 | -- | -233 | -35.1 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 0 steps | 0% | 0.972772 | -114 | -2957 | -6.0 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 23 steps | 10% | 0.973847 | -526 | -2844 | -18.1 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 46 steps | 20% | 0.978861 | -807 | -2318 | -53.2 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 69 steps | 30% | 0.986652 | -569 | -1511 | -71.2 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 92 steps | 40% | 0.992226 | -357 | -942 | -71.8 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 115 steps | 50% | 0.995757 | -234 | -584 | -63.6 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 138 steps | 60% | 0.998081 | -156 | -350 | -47.8 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 161 steps | 70% | 0.999639 | -107 | -194 | -30.5 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 184 steps | 80% | 1.000709 | -66 | -87 | -15.3 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 207 steps | 90% | 1.001371 | -21 | -21 | -4.4 | +--------------+-----------+-------------+-----------+-----------+------------------+ | 230 steps | 100% | 1.001584 | -- | -- | 0.0 | +--------------+-----------+-------------+-----------+-----------+------------------+ CRANE与KENO-VI的计算结果偏差如下表： .. table:: VERA_4 deviation of CRANE vs. KENO-VI :align: center +--------------+-----------+-------------------+-----------+-----------+------------------+ | Rod Position | Withdrawn | k-effective (pcm) | DRW (pcm) | IRW (pcm) | Axial Offset (%) | +==============+===========+===================+===========+===========+==================+ | 257.9 cm | -- | 27 | -- | 7 | 0.2 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 0 steps | 0% | 36 | 20 | 18 | 0.9 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 23 steps | 10% | 17 | 70 | -2 | 2.8 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 46 steps | 20% | -50 | -13 | -73 | 3.3 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 69 steps | 30% | -39 | -28 | -60 | 0.4 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 92 steps | 40% | -12 | -13 | -32 | -0.9 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 115 steps | 50% | 1 | -4 | -18 | -1.6 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 138 steps | 60% | 5 | -3 | -14 | -2.0 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 161 steps | 70% | 9 | -4 | -11 | -2.0 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 184 steps | 80% | 12 | -8 | -7 | -1.7 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 207 steps | 90% | 20 | 1 | 1 | -1.4 | +--------------+-----------+-------------------+-----------+-----------+------------------+ | 230 steps | 100% | 20 | -- | -- | 0 | +--------------+-----------+-------------------+-----------+-----------+------------------+ CRANE与KENO-VI的棒积分价值曲线比较： .. figure:: ../_images/vv_VERA_4_IRW.png :align: center :figclass: align-center :width: 800px CRANE与KENO-VI的棒微分价值比较： .. figure:: ../_images/vv_VERA_4_DRW.png :align: center :figclass: align-center :width: 800px 棒位 **257.9cm** 状态点下CRANE与KENO-VI的组件功率分布偏差如下： .. figure:: ../_images/vv_VERA_4_assembly_power.png :align: center :figclass: align-center :width: 800px 棒位 **257.9cm** 状态点下CRANE与KENO-VI的轴向功率分布偏差如下： .. figure:: ../_images/vv_VERA_4_axial_power.png :align: center :figclass: align-center :width: 800px .. _vv_vera_5_2d: ----------------- VERA_5_2D ----------------- VERA_5_2D系列基准题是两维堆芯问题，是WBN1机组热态零功率的两维问题，该堆芯可燃毒物组件交替布置，有插棒和不插棒等不同情况。 主要考察程序对于带有反射层的真实堆芯两维问题反应性、组件功率分布的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_5a_2d`、:ref:`vera_5b_2d`、:ref:`vera_5c_2d`。参考解取至 `参考文献`_ [1]，由蒙卡程序KENO-VI计算获得。 VERA_5A_2D ----------- :ref:`vera_5a_2d` 问题CRANE与KENO-VI计算结果的比较如下： .. figure:: ../_images/vv_VERA_5A_2D_summary.png :align: center :figclass: align-center :width: 800px | 其中组件功率分布偏差如下图： .. figure:: ../_images/vv_VERA_5A_2D_assembly_power.png :align: center :figclass: align-center :width: 800px VERA_5B_2D ----------- :ref:`vera_5b_2d` 问题CRANE与KENO-VI计算结果的比较如下： .. figure:: ../_images/vv_VERA_5B_2D_summary.png :align: center :figclass: align-center :width: 800px | 其中组件功率分布偏差如下图： .. figure:: ../_images/vv_VERA_5B_2D_assembly_power.png :align: center :figclass: align-center :width: 800px VERA_5C_2D ----------- :ref:`vera_5c_2d` 问题CRANE与KENO-VI计算结果的比较如下： .. figure:: ../_images/vv_VERA_5C_2D_summary.png :align: center :figclass: align-center :width: 800px | 其中组件功率分布偏差如下图： .. figure:: ../_images/vv_VERA_5C_2D_assembly_power.png :align: center :figclass: align-center :width: 800px .. _vv_vera_5: ----------------- VERA_5 ----------------- VERA_5系列基准题是WBN1机组热态零功率启动物理试验问题，需要计算临界状态反应性、控制棒组积分价值、D棒组微分价值、 温度系数、硼微分价值等。主要考察程序对于真实堆芯热态零功率启动物理试验的计算精度。 该系列基准问题 :ref:`io_file_formats_input` 见 :ref:`vera_5`。参考解取至 `参考文献`_ [1]，除了蒙卡程序KENO-VI的计算值，也有测量值。 CRANE计算的每个状态点的 k-effective 如下表： .. table:: VERA_5 result of CRANE :align: center +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | Case | Boron (ppm) | Temp (K) | A | B | C | D | SA | SB | SC | SD | k-effective | +======+=============+==========+=====+=====+=====+=====+=====+=====+=====+=====+=============+ | 1 | 1285 | 565 | - | - | - | 167 | - | - | - | - | 1.000328 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 2 | 1291 | ↓ | - | - | - | - | - | - | - | - | 1.000866 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 3 | 1170 | ↓ | 0 | - | - | 97 | - | - | - | - | 0.999182 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 4 | ↓ | ↓ | - | 0 | - | 113 | - | - | - | - | 0.999590 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 5 | ↓ | ↓ | - | - | 0 | 119 | - | - | - | - | 0.999496 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 6 | ↓ | ↓ | - | - | - | 18 | - | - | - | - | 0.999701 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 7 | ↓ | ↓ | - | - | - | 69 | 0 | - | - | - | 0.998945 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 8 | ↓ | ↓ | - | - | - | 134 | - | 0 | - | - | 0.999761 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 9 | ↓ | ↓ | - | - | - | 71 | - | - | 0 | - | 0.999243 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 10 | ↓ | ↓ | - | - | - | 71 | - | - | - | 0 | 0.999259 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 11 | ↓ | ↓ | - | - | - | - | - | - | - | - | 1.013371 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 12 | ↓ | ↓ | 0 | - | - | - | - | - | - | - | 1.004378 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 13 | ↓ | ↓ | - | 0 | - | - | - | - | - | - | 1.004443 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 14 | ↓ | ↓ | - | - | 0 | - | - | - | - | - | 1.003464 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 15 | ↓ | ↓ | - | - | - | 0 | - | - | - | - | 0.999474 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 16 | ↓ | ↓ | - | - | - | - | 0 | - | - | - | 1.008776 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 17 | ↓ | ↓ | - | - | - | - | - | 0 | - | - | 1.002628 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 18 | ↓ | ↓ | - | - | - | - | - | - | 0 | - | 1.008301 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 19 | ↓ | ↓ | - | - | - | - | - | - | - | 0 | 1.008308 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 20 | 1291 | 560 | - | - | - | - | - | - | - | - | 1.001088 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 21 | ↓ | 570 | - | - | - | - | - | - | - | - | 1.000559 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 22 | 1230 | 565 | - | - | - | 0 | - | - | - | - | 0.993386 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 23 | ↓ | ↓ | - | - | - | 23 | - | - | - | - | 0.993726 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 24 | ↓ | ↓ | - | - | - | 46 | - | - | - | - | 0.994945 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 25 | ↓ | ↓ | - | - | - | 69 | - | - | - | - | 0.997586 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 26 | ↓ | ↓ | - | - | - | 92 | - | - | - | - | 1.000566 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 27 | ↓ | ↓ | - | - | - | 115 | - | - | - | - | 1.002905 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 28 | ↓ | ↓ | - | - | - | 138 | - | - | - | - | 1.004614 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 29 | ↓ | ↓ | - | - | - | 161 | - | - | - | - | 1.005764 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 30 | ↓ | ↓ | - | - | - | 184 | - | - | - | - | 1.006558 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 31 | ↓ | ↓ | - | - | - | 207 | - | - | - | - | 1.006997 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ | 32 | ↓ | ↓ | - | - | - | - | - | - | - | - | 1.007117 | +------+-------------+----------+-----+-----+-----+-----+-----+-----+-----+-----+-------------+ CRANE与KENO-VI计算的临界物理实验反应性与测量值的偏差： .. figure:: ../_images/vv_VERA_5_criticals.png :align: center :figclass: align-center :width: 800px CRANE计算的控制棒组价值、温度系数、硼微分价值与测量值、KENO-VI的比较如下表： .. table:: VERA_5 result of CRANE vs. MEASURE and KENO-VI :align: center +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | | MEASURE | KENO-VI | CRANE | KENO-VI - MEASURE | CRANE - MEASURE | CRANE - KENO-VI | +===============+=========+=========+=========+===================+=================+=================+ | Initial keff | 1.00000 | 0.99990 | 1.00033 | -10 | 33 | 43 | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_A | 843 | 898 | 884 | 6.5% | 4.8% | -1.6% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_B | 879 | 875 | 877 | -0.5% | -0.2% | 0.2% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_C | 951 | 984 | 974 | 3.5% | 2.4% | -1.0% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_D | 1342 | 1386 | 1372 | 3.3% | 2.2% | -1.0% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_SA | 435 | 447 | 449 | 2.8% | 3.3% | 0.5% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_SB | 1056 | 1066 | 1057 | 0.9% | 0.1% | -0.8% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_SC | 480 | 499 | 496 | 4.0% | 3.4% | -0.6% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Bank_SD | 480 | 499 | 495 | 4.0% | 3.2% | -0.7% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | Total | 6467 | 6655 | 6605 | 2.9% | 2.1% | -0.8% | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | DBW (pcm/ppm) | -10.77 | -10.21 | -10.17 | 0.56 | 0.60 | 0.04 | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ | ITC (pcm/C°) | -3.91 | -5.72 | -5.27 | -1.81 | -1.36 | 0.45 | +---------------+---------+---------+---------+-------------------+-----------------+-----------------+ CRANE与KENO-VI计算的D棒组微分价值偏差： .. figure:: ../_images/vv_VERA_5_DRW.png :align: center :figclass: align-center :width: 800px .. _参考文献: 参考文献: 1. Godfrey, A.T., 2014. VERA core physics benchmark progression problem specifications. Oak Ridge National Laboratory, Oak Ridge, TN, Report No. CASL-U-2012-0131-004. https://www.casl.gov/sites/default/files/docs/CASL-U-2012-0131-004.pdf.