EXFOR 32877
last update: 2025-12-01
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0. OVERALL DESCRIPTION (32877.001)
last update: 2025-12-01
Title

Measurement of 209Bi neutron inelastic scattering sross section with prompt gamma-ray method

Author
Sun Qi, Wang Zhaohui, Zhang Qiwei, Huang Hanxiong, Ren Jie, Ruan Xichao, Liu Shilong, Bao Jie, Luan Guangyuan, Ding Yanyan, Chen Xiongjun, Nie Yangbo, Liu Chao, Zhao Qi, Wang Jincheng, He Guozhu, Du Shubin
Institute
China Inst. of Atomic Energy, Beijing
Reference
At.En.Sci.Technol. 56 (2022) 816

#doi:10.7538/yzk.2022.youxian.0189

Facility
Tandem van de Graaff of China Inst. of Atomic Energy, Beijing

HI-13 tandem accelerator

Incident particle source
2H(d,n)

Neutrons were produced using a D2 gas target bombarded with deuterons at 6.5, 8.0 and 9.5 MeV. The current was 300 nA, the pulse repetition frequency was about 3 MHz.

Sample

209Bi metal sample was 50 mm in diameter, 4 mm in thickness, and 9.8 g/cm3 in density. Natural Ti sample was 50 in diameter, 1 mm in thickness, and 4.54 g/cm3 in density.

Method
Direct gamma-ray spectrometry, Time-of-flight

Time-of-flight method was used to determine neutron energy.

Detector
Scintillation detector

A BC501A liquid scintillator detector was used to monitor the neutron flux.

Hyperpure germanium detector

4 Clover detector was used to measure produced gamma-ray. Every detector was made of 4 high-purity germanium crystals. The Clover detector was calibrated with 152Eu, 60Co, 22Na and 133Ba standard gamma-ray radioactive sources.

Standard
48Ti(n,inl)48Ti partial cross section
Standard reference
A.D.Carlson, Nucl.Data Sheets 148 (2018) 143
Standard decay data
Flag Nuclide T1/2 Type Energy (keV) Intensity Remark
48Ti γ 983.5
Error analysis
Heading Lower limit (%) Upper limit (%) Correlation Remark
ERR-T Total uncertainty
ERR-S Relative errors of the source neutron counts and the full-energy peak counts
ERR-1 3. Detector efficiency
ERR-2 1. Sample composition
ERR-3 1. Dimension of the sample
ERR-4 1. Correction factor
ERR-5 1. Location of the detector
Status
Data presented by authors (Ref. Sun Qi et al., At.En.Sci.Technol. 56 (2022) 816)

Text in p.822

History
Date Work Remark
2025-12-01 Compiled at the data center Compiled by Xi Tao (CNDC)
1. DATA TABLE 32877.002
last update: 2025-12-01
Quantity given
209Bi(n,inl)209Bi cross section
Status
Dependent data (See EXFOR 32877.003)
Data table 
------------------------------------------------
EN          DATA        ERR-T       ERR-S       
MEV         MB          MB          PER-CENT    
------------------------------------------------
        9.0      1638.1        83.6         3.6 
       10.5       675.5        37.9         4.2 
       12.0       482.5        28.5         4.6 
------------------------------------------------
2. DATA TABLE 32877.003
last update: 2025-12-01
Quantity given
209Bi(n,inl)209Bi partial cross section for particle specified (particle considered: gammas)
Decay data
Flag Nuclide T1/2 Type Energy (keV) Intensity Remark
209Bi γ 1608.53 1.00
Constants 
------------
E-LVL       
KEV         
------------
    1608.58 
------------
Data table 
------------------------------------------------
EN          DATA        ERR-T       ERR-S       
MEV         MB          MB          PER-CENT    
------------------------------------------------
        9.0       666.1        34.0         3.6 
       10.5       277.0        15.6         4.2 
       12.0       188.6        11.2         4.6 
------------------------------------------------