Neutron detector array at IUAC: Design features and instrumentation developments

Pramana

J Antony¹  I M Govil¹  Rajesh Kumar¹  N Saneesh¹  T Varughese¹  J Zacharias¹  K S Golda¹  P Barua¹  A Jhingan¹  K Singh¹  R K Bhowmik¹  V V Satyanarayana¹  A Kothari¹  S K Saini¹  R P Singh¹  S K Suman¹  S Venkataramanan¹  S K Mandal¹  P Sugathan1¹  Ruby Shanti¹  A Gupta¹  B R Behera¹ 

[1] Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110 067, India$$

关键词: Fusion–fission reactions;    instrumentation;    scintillation detectors.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The characteristics and performance of the newly commissioned neutron detector array at IUAC are described. The array consists of 100 BC501 liquid scintillators mounted in a semispherical geometry and are kept at a distance of 175 cm from the reaction point. Each detector is a 5″ × 5″ cylindrical cell coupled to 5″ diameter photomultiplier tube (PMT). Signal processing is realized using custom-designed home-made integrated electronic modules which perform neutron–gamma discrimination using zero cross timing and time-of-flight (TOF) technique. Compact custom-built high voltage power supply developed using DC–DC converters are used to bias the detector. The neutrons are recorded in coincidence with fission fragments which are detected using multi-wire proportional counters mounted inside a 1m diameter SS target chamber. The detectors and electronics have been tested off-line using radioactive sources and the results are presented.

【 授权许可】

Unknown