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Measurement of(n,α)and(n,2n)reaction cross sections at a neutron energy of 14.92±0.02 MeV for potassium and copper with uncertainty propagation

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Chinese Physics C 2022年第1期46卷 110-117页

作者： A.Gandhi aman sharma rebecca Pachuau1 namrata singh L.s.Danu s.V.suryanarayana B.k.nayak A.kumar Department of Physics Banaras Hindu UniversityVaranasi 221005India nuclear Physics Division Bhabha Atomic Research CentreMumbai 400085India

Experimentally measured neutron activation cross sections are presented for the ^(65)Cu(n,0)^(62m)Cu,^(41) k(n,a)^(38C)l,and ^(65)Cu(n.2n)^(64)Cu reactions with detailed uncertainty *** neutron cross secions were measured at an incident energy of 14.92±0.02 MeV,and the neutrons were based on the(d,n)a fusion *** ^(27) Al(n,a)^(24)na reaction was used as a reference reaction for the normalization of the neutron *** pre-calib-rated lead-shielded HPGe detector was used to detect the residues'γ-ray *** data from the measured cross sections are compared to the previously measured cross sections from the EXFOR database,theoretically calculated cross sections using the TALYs and EMPIRE codes,and evaluated nuclear data.

关键词： nuclear reactions (n,a)and(n,2n)reactions t(c/,n)a neutron source uncertainty propagation covariance analysis TALYs-1.9 and EMPIRE-3.2 code

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Timing of chemotherapy and survival in patients with resectable gastric adenocarcinoma

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World Journal of Gastrointestinal surgery 2013年第12期5卷 321-328页

作者： aman.a k arrin.ton.rebecca n.lson.supriya s patel Carrie Luu Michelle ko Julio Garcia-Aguilar Joseph kim Division of surgical Oncology City of Hope Comprehensive Cancer Center Department of Biostatistics City of Hope Comprehensive Cancer Center Department of surgery University of Southern California Department of surgery Harbor-UCLA Medical Center Division of Colorectal surgery Memorial Sloan-Kettering Cancer Center

AIM: To evaluate the timing of chemotherapy in gastric cancer by comparing survival outcomes in treatment groups. METHODs: Patients with surgically resected gastric adenocarcinoma from 1988 to 2006 were identified from the Los Angeles County Cancer surveillance Program. To evaluate the population most likely to receive and/or benefit from adjunct chemotherapy, inclusion criteria consisted of stage Ⅱ or Ⅲ gastric cancer patients > 18 years of age who underwent curative-intentsurgical resection. Patients were categorized into three groups according to the receipt of chemotherapy:(1) no chemotherapy;(2) preoperative chemotherapy; or(3) postoperative chemotherapy. Clinical and pathologic characteristics were compared across the different treatment ***: Of 1518 patients with surgically resected gastric cancer, 327(21.5%) received perioperative chemotherapy. The majority of these 327 patients were male(68%) with a mean age of 61.5 years; and they were significantly younger than non-chemotherapy patients(mean age, 70.7; P st patients had tumors frequently located in the distal stomach(34.5%). Preoperative chemotherapy was administered to 11.3% of patients(n = 37) and postoperative therapy to 88.7% of patients(n = 290). An overall survival benefit according to timing of chemotherapy was not observed on univariate or multivariate analysis. similar results were observed with stagespecific survival analyses(5-year overall survival: stage Ⅱ, 25% vs 30%, respectively; stage Ⅲ, 14% vs 11%, respectively). Therefore, our results do not identify a survival advantage for specific timing of chemotherapy in locally advanced gastric cancer. COnCLUsIOn: This study supports the implementation of a randomized trial comparing the timing of perioperative therapy in patients with locally advanced gastric cancer.

关键词： Chemotherapy Gastric cancer Adjunct therapy Postoperative therapy Preoperative therapy Timing

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Erratum:Measurement of(n,α)and(n,2n)reaction cross sections at a neutron energy of 14.92±0.02 MeV for potassium and copper with uncertainty propagation,[***,aman sharma,rebecca Pachuau et al.,***.C 46,014002(2022)]

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Chinese Physics C 2022年第7期46卷 220-220页

作者： A.Gandhi aman sharma rebecca Pachuau namrata singh L.s.Danu s.V.suryanarayana B.k.nayak A.kumar Department of Physics Banaras Hindu UniversityVaranasi 221005India nuclear Physics Division Bhabha Atomic Research CentreMumbai 400085India

Experimentally measured neutron activation cross sections are presented for the^(65)Cu(n,α)^(62m)Cu,^(41)k(n,α)^(38)Cl,and^(65)Cu(n,2n)^(64)Cu reactions with detailed uncertainty *** neutron cross sections were measured at an incident energy of 14.92±0.02 MeV,and the neutrons were based on the t(d,n)αfusion ***^(27)Al(n,α)^(24)na reaction was used as a reference reaction for the normalization of the neutron *** pre-calibrated lead-shielded HPGe detector was used to detect the residues'γ-ray *** data from the measured cross sections are compared to the previously measured cross sections from the EXFOR database,theoretically calculated cross sections using the TALYs and EMPIRE codes,and evaluated nuclear data.

关键词： nuclear reactions (na)and(n,2n)reactions t(d,n)a neutron source uncertainty propagation covariance analysis TALYs-1.9 and EMPIRE-3.2 code

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