Measurement of <SUP>248</SUP>Cm/<SUP>252</SUP>Cf Cf Spontaneous Prompt Fission Neutron Spectrum

BAO Shang-Lian; LIU Wen-Long; WEN Chen-Lin; FAN Tie-Shuan

Chinese Physics C> 2001, Vol. 25> Issue(4) : 304-308

Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum

The Iinstitute of Heavy Ion Physics,Peking University,Beijing 100871,China1 V.G Klopin Radio Instiute,The Second Munnsky Av,28,194021 Saint Petersburg,Russia

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Abstract：
In order to treat the waste material of nuclear power and develop new type of clean nuclear power,it is necessary to measure the neutron adta of long half life nuclei existed in the waste material.The prompt spontaneous neutron spectrum is one of the most important unclear data for new type nuclear power facilities as well as for understanding the mechanism of fission neutron emission.The measurements of ²⁴⁸Cm/²⁵²Cf spontaneous prompt fission neutron spectrum in the neutron energy range form 200keV to 12MeV wer performed by using TOF method.A micro-ionization chamber aws used as fission fragment detector and stibene crystal as neutron detector.The flying paths of neutrons for the measurements were 30cm,50cm and 100cm respectively.The spontaneous prompt fission neutron spectrum of ²⁴⁸Cm was fitted by the Maxwellian distribution and the temperature was determined as (1.401±0.006)MeV in the corresponding neutron energy range.

References

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BAO Shang-Lian, LIU Wen-Long, WEN Chen-Lin, FAN Tie-Shuan, Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum[J]. Chinese Physics C, 2001, 25(4): 304-308.

BAO Shang-Lian, LIU Wen-Long, WEN Chen-Lin, FAN Tie-Shuan, Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum[J]. Chinese Physics C, 2001, 25(4): 304-308. shu

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Received: 2000-01-12
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum

Corresponding author: BAO Shang-Lian,

The Iinstitute of Heavy Ion Physics,Peking University,Beijing 100871,China1 V.G Klopin Radio Instiute,The Second Munnsky Av,28,194021 Saint Petersburg,Russia

Received Date: 2000-01-12

Accepted Date: 1900-01-01

Available Online: 2001-04-05

Abstract: In order to treat the waste material of nuclear power and develop new type of clean nuclear power,it is necessary to measure the neutron adta of long half life nuclei existed in the waste material.The prompt spontaneous neutron spectrum is one of the most important unclear data for new type nuclear power facilities as well as for understanding the mechanism of fission neutron emission.The measurements of ²⁴⁸Cm/²⁵²Cf spontaneous prompt fission neutron spectrum in the neutron energy range form 200keV to 12MeV wer performed by using TOF method.A micro-ionization chamber aws used as fission fragment detector and stibene crystal as neutron detector.The flying paths of neutrons for the measurements were 30cm,50cm and 100cm respectively.The spontaneous prompt fission neutron spectrum of ²⁴⁸Cm was fitted by the Maxwellian distribution and the temperature was determined as (1.401±0.006)MeV in the corresponding neutron energy range.

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Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum

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Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum

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Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum

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Measurement of 248Cm/252Cf Cf Spontaneous Prompt Fission Neutron Spectrum

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Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum

Measurement of ²⁴⁸Cm/²⁵²Cf Cf Spontaneous Prompt Fission Neutron Spectrum