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Lawson M, Cureton N, Ros S, Cheraghchi-Bashi A, Urosevic J, D'Arcy S, Delpuech O, DuPont M, Fisher DI, Gangl ET, Lewis H, Trueman D, Wali N, Williamson SC, Moss J, Montaudon E, Derrien H, Marangoni E, Miragaia RJ, Gagrica S, Morentin-Gutierrez P, Moss TA, Maglennon G, Sutton D, Polanski R, Rosen A, Cairns J, Zhang P, Sánchez-Guixé M, Serra V, Critchlow SE, Scott JS, Lindemann JP, Barry ST, Klinowska T, Morrow CJ, S Carnevalli L. The Next-Generation Oral Selective Estrogen Receptor Degrader Camizestrant (AZD9833) Suppresses ER+ Breast Cancer Growth and Overcomes Endocrine and CDK4/6 Inhibitor Resistance. Cancer Res 2023; 83:3989-4004. [PMID: 37725704 PMCID: PMC10690091 DOI: 10.1158/0008-5472.can-23-0694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 07/11/2023] [Accepted: 09/15/2023] [Indexed: 09/21/2023]
Abstract
Oral selective estrogen receptor degraders (SERD) could become the backbone of endocrine therapy (ET) for estrogen receptor-positive (ER+) breast cancer, as they achieve greater inhibition of ER-driven cancers than current ETs and overcome key resistance mechanisms. In this study, we evaluated the preclinical pharmacology and efficacy of the next-generation oral SERD camizestrant (AZD9833) and assessed ER-co-targeting strategies by combining camizestrant with CDK4/6 inhibitors (CDK4/6i) and PI3K/AKT/mTOR-targeted therapy in models of progression on CDK4/6i and/or ET. Camizestrant demonstrated robust and selective ER degradation, modulated ER-regulated gene expression, and induced complete ER antagonism and significant antiproliferation activity in ESR1 wild-type (ESR1wt) and mutant (ESR1m) breast cancer cell lines and patient-derived xenograft (PDX) models. Camizestrant also delivered strong antitumor activity in fulvestrant-resistant ESR1wt and ESR1m PDX models. Evaluation of camizestrant in combination with CDK4/6i (palbociclib or abemaciclib) in CDK4/6-naive and -resistant models, as well as in combination with PI3Kαi (alpelisib), mTORi (everolimus), or AKTi (capivasertib), indicated that camizestrant was active with CDK4/6i or PI3K/AKT/mTORi and that antitumor activity was further increased by the triple combination. The response was observed independently of PI3K pathway mutation status. Overall, camizestrant shows strong and broad antitumor activity in ER+ breast cancer as a monotherapy and when combined with CDK4/6i and PI3K/AKT/mTORi. SIGNIFICANCE Camizestrant, a next-generation oral SERD, shows promise in preclinical models of ER+ breast cancer alone and in combination with CDK4/6 and PI3K/AKT/mTOR inhibitors to address endocrine resistance, a current barrier to treatment.
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Affiliation(s)
- Mandy Lawson
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Natalie Cureton
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Susana Ros
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | | | - Jelena Urosevic
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Sophie D'Arcy
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Oona Delpuech
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Michelle DuPont
- Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts
| | - David I. Fisher
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
| | - Eric T. Gangl
- Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts
| | - Hilary Lewis
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Dawn Trueman
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Neha Wali
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | | | - Jennifer Moss
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | | | | | | | | | - Sladjana Gagrica
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | | | - Thomas A. Moss
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Gareth Maglennon
- Clinical Pharmacology and Safety Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
| | - Daniel Sutton
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Radoslaw Polanski
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
| | - Alan Rosen
- Research and Early Development, Oncology R&D, AstraZeneca, Waltham, Massachusetts
| | - Jonathan Cairns
- Discovery Sciences, Biopharmaceuticals R&D, AstraZeneca, Cambridge, United Kingdom
| | - Pei Zhang
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Mònica Sánchez-Guixé
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Violeta Serra
- Experimental Therapeutics Group, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Susan E. Critchlow
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - James S. Scott
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | | | - Simon T. Barry
- The Discovery Centre, Biomedical Campus, AstraZeneca, Cambridge, United Kingdom
| | - Teresa Klinowska
- Late Development, Oncology R&D, AstraZeneca, Cambridge, United Kingdom
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El-Botty R, Morriset L, Montaudon E, Tariq Z, Schnitzler A, Bacci M, Lorito N, Sourd L, Huguet L, Dahmani A, Painsec P, Derrien H, Vacher S, Masliah-Planchon J, Raynal V, Baulande S, Larcher T, Vincent-Salomon A, Dutertre G, Cottu P, Gentric G, Mechta-Grigoriou F, Hutton S, Driouch K, Bièche I, Morandi A, Marangoni E. Oxidative phosphorylation is a metabolic vulnerability of endocrine therapy and palbociclib resistant metastatic breast cancers. Nat Commun 2023; 14:4221. [PMID: 37452026 PMCID: PMC10349040 DOI: 10.1038/s41467-023-40022-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
Resistance to endocrine treatments and CDK4/6 inhibitors is considered a near-inevitability in most patients with estrogen receptor positive breast cancers (ER + BC). By genomic and metabolomics analyses of patients' tumours, metastasis-derived patient-derived xenografts (PDX) and isogenic cell lines we demonstrate that a fraction of metastatic ER + BC is highly reliant on oxidative phosphorylation (OXPHOS). Treatment by the OXPHOS inhibitor IACS-010759 strongly inhibits tumour growth in multiple endocrine and palbociclib resistant PDX. Mutations in the PIK3CA/AKT1 genes are significantly associated with response to IACS-010759. At the metabolic level, in vivo response to IACS-010759 is associated with decreased levels of metabolites of the glutathione, glycogen and pentose phosphate pathways in treated tumours. In vitro, endocrine and palbociclib resistant cells show increased OXPHOS dependency and increased ROS levels upon IACS-010759 treatment. Finally, in ER + BC patients, high expression of OXPHOS associated genes predict poor prognosis. In conclusion, these results identify OXPHOS as a promising target for treatment resistant ER + BC patients.
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Affiliation(s)
- Rania El-Botty
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Ludivine Morriset
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Elodie Montaudon
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Zakia Tariq
- Department of Genetics, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Anne Schnitzler
- Department of Genetics, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Marina Bacci
- Dept. of Experimental and Clinical Biomedical Sciences, Viale Morgagni, 50 - 50134, Florence, Italy
| | - Nicla Lorito
- Dept. of Experimental and Clinical Biomedical Sciences, Viale Morgagni, 50 - 50134, Florence, Italy
| | - Laura Sourd
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Léa Huguet
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Ahmed Dahmani
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Pierre Painsec
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Heloise Derrien
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Sophie Vacher
- Department of Genetics, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | | | - Virginie Raynal
- ICGex - NGS platform, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Sylvain Baulande
- ICGex - NGS platform, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Thibaut Larcher
- INRA, APEX-PAnTher, Oniris, 44322, Rue de la Géraudière, Nantes, France
| | - Anne Vincent-Salomon
- Department of Pathology, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Guillaume Dutertre
- Department of Surgery, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Paul Cottu
- Department of Medical Oncology, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Géraldine Gentric
- "Stress and Cancer" Laboratory, Institut Curie - Inserm U830, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Fatima Mechta-Grigoriou
- "Stress and Cancer" Laboratory, Institut Curie - Inserm U830, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Scott Hutton
- Metabolon Inc., 617 Davis Drive, Suite 100, Morrisville, NC, 27560, USA
| | - Keltouma Driouch
- Department of Genetics, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
| | - Ivan Bièche
- Department of Genetics, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France
- Paris City University, Inserm U1016, Faculty of Pharmaceutical and Biological Sciences, 75005, Paris, France
| | - Andrea Morandi
- Dept. of Experimental and Clinical Biomedical Sciences, Viale Morgagni, 50 - 50134, Florence, Italy
| | - Elisabetta Marangoni
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 rue d'Ulm, 75005, Paris, France.
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Ter Brugge P, Moser SC, Bièche I, Kristel P, Ibadioune S, Eeckhoutte A, de Bruijn R, van der Burg E, Lutz C, Annunziato S, de Ruiter J, Masliah Planchon J, Vacher S, Courtois L, El-Botty R, Dahmani A, Montaudon E, Morisset L, Sourd L, Huguet L, Derrien H, Nemati F, Chateau-Joubert S, Larcher T, Salomon A, Decaudin D, Reyal F, Coussy F, Popova T, Wesseling J, Stern MH, Jonkers J, Marangoni E. Homologous recombination deficiency derived from whole-genome sequencing predicts platinum response in triple-negative breast cancers. Nat Commun 2023; 14:1958. [PMID: 37029129 PMCID: PMC10082194 DOI: 10.1038/s41467-023-37537-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 03/22/2023] [Indexed: 04/09/2023] Open
Abstract
The high frequency of homologous recombination deficiency (HRD) is the main rationale of testing platinum-based chemotherapy in triple-negative breast cancer (TNBC), however, the existing methods to identify HRD are controversial and there is a medical need for predictive biomarkers. We assess the in vivo response to platinum agents in 55 patient-derived xenografts (PDX) of TNBC to identify determinants of response. The HRD status, determined from whole genome sequencing, is highly predictive of platinum response. BRCA1 promoter methylation is not associated with response, in part due to residual BRCA1 gene expression and homologous recombination proficiency in different tumours showing mono-allelic methylation. Finally, in 2 cisplatin sensitive tumours we identify mutations in XRCC3 and ORC1 genes that are functionally validated in vitro. In conclusion, our results demonstrate that the genomic HRD is predictive of platinum response in a large cohort of TNBC PDX and identify alterations in XRCC3 and ORC1 genes driving cisplatin response.
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Affiliation(s)
- Petra Ter Brugge
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Sarah C Moser
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Ivan Bièche
- Genetics Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Petra Kristel
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Sabrina Ibadioune
- Genetics Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Alexandre Eeckhoutte
- INSERM U830, Institut Curie, PSL University, 75005, Paris, France
- Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Roebi de Bruijn
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Eline van der Burg
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Catrin Lutz
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Stefano Annunziato
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Julian de Ruiter
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Sophie Vacher
- Genetics Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Laura Courtois
- Genetics Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Rania El-Botty
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Ahmed Dahmani
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Elodie Montaudon
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Ludivine Morisset
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Laura Sourd
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Léa Huguet
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Heloise Derrien
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Fariba Nemati
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | | | | | - Anne Salomon
- Department of Pathology, Institut Curie, PSL University, 75005, Paris, France
| | - Didier Decaudin
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Fabien Reyal
- Department of Surgery, Institut Curie, PSL University, 75005, Paris, France
| | - Florence Coussy
- Department of Medical Oncology, Institut Curie, PSL University, 75005, Paris, France
| | - Tatiana Popova
- INSERM U830, Institut Curie, PSL University, 75005, Paris, France
- Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Jelle Wesseling
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Marc-Henri Stern
- Genetics Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
- INSERM U830, Institut Curie, PSL University, 75005, Paris, France
- Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France
| | - Jos Jonkers
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands.
| | - Elisabetta Marangoni
- Laboratory of Preclinical Investigation, Translational Research Department, Institut Curie, PSL University, 26 Rue d'Ulm, 75005, Paris, France.
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4
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Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division, Oak Ridge, Tennessee 37831
| | - N. M. Larson
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division, Oak Ridge, Tennessee 37831
| | - G. de Saussure
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division, Oak Ridge, Tennessee 37831
| | - R. B. Perez
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division, Oak Ridge, Tennessee 37831
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5
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Affiliation(s)
- O. Bouland
- Commissariat à l’Energie Atomique, Laboratoire d’Etudes Physique C.E. Cadarache, 13108 St. Paul-lez-Durance, France
| | - H. Derrien
- Organization for Economic Cooperation and Development, Nuclear Energy Agency Data Bank Le seine St. Denis, 92130 Issy-les-Moulineaux, France
| | - N. M. Larson
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6383
| | - L. C. Leal
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6383
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6
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Leal LC, Derrien H, Larson NM, Wright RQ. R-Matrix Analysis of235U Neutron Transmission and Cross-Section Measurements in the 0- to 2.25-keV Energy Range. NUCL SCI ENG 2017. [DOI: 10.13182/nse99-a2031] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- L. C. Leal
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group, Building 6011 MS 6370, P. O. Box 2008, Oak Ridge, Tennessee 37831-6370
| | - H. Derrien
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group, Building 6011 MS 6370, P. O. Box 2008, Oak Ridge, Tennessee 37831-6370
| | - N. M. Larson
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group, Building 6011 MS 6370, P. O. Box 2008, Oak Ridge, Tennessee 37831-6370
| | - R. Q. Wright
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group, Building 6011 MS 6370, P. O. Box 2008, Oak Ridge, Tennessee 37831-6370
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7
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Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division P.O. Box 2008, Oak Ridge, Tennessee 37831
| | - G. de Saussure
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division P.O. Box 2008, Oak Ridge, Tennessee 37831
| | - R. B. Perez
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division P.O. Box 2008, Oak Ridge, Tennessee 37831
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8
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Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division P.O. Box 2008, Oak Ridge, Tennessee 37831-6354
| | - G. de Saussure
- Oak Ridge National Laboratory, Engineering Physics and Mathematics Division P.O. Box 2008, Oak Ridge, Tennessee 37831-6354
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9
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Affiliation(s)
- L. W. Weston
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6354
| | - J. H. Todd
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6354
| | - H. Derrien
- Japan Atomic Energy Research Institute, Tokai-mura, Naka-gun, lbaraki-ken, Japan
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10
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Guber KH, Spencer RR, Leal LC, Koehler PE, Harvey JA, Sayer RO, Derrien H, Valentine TE, Pierce DE, Cauley VM, Lewis TA. High-Resolution Transmission Measurements of233U Using a Cooled Sample at the TemperatureT= 11 K. NUCL SCI ENG 2017. [DOI: 10.13182/nse01-a2226] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. H. Guber
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - R. R. Spencer
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - L. C. Leal
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - P. E. Koehler
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - J. A. Harvey
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - R. O. Sayer
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - H. Derrien
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - T. E. Valentine
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - D. E. Pierce
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - V. M. Cauley
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
| | - T. A. Lewis
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37921-6354
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11
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Derrien H, Courcelle A, Leal LC, Larson NM. R-Matrix Analysis of238U High-Resolution Neutron Transmissions and Capture Cross Sections in the Energy Range 0 to 20 keV. NUCL SCI ENG 2017. [DOI: 10.13182/nse161-131] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - A. Courcelle
- Centre d’Etudes de Cadarache, St. Paul-lez-Durance 13108, France
| | - L. C. Leal
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - N. M. Larson
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
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12
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Derrien H, Leal LC, Larson NM. R-Matrix Analysis of232Th Neutron Transmissions and Capture Cross Sections in the Energy Range Thermal to 4 keV. NUCL SCI ENG 2017. [DOI: 10.13182/nse160-149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - L. C. Leal
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
| | - N. M. Larson
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
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13
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Derrien H, Leal LC, Courcelle A, Santamarina A. Reevaluation and Validation of the241Pu Resonance Parameters in the Energy Range Thermal to 20 eV. NUCL SCI ENG 2017. [DOI: 10.13182/nse150-109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Derrien
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6370
| | - L. C. Leal
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6370
| | - A. Courcelle
- CEA/DEN-Cadarache, 13108 Saint Paul Lez Durance, Cedex, France
| | - A. Santamarina
- CEA/DEN-Cadarache, 13108 Saint Paul Lez Durance, Cedex, France
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Abstract
Covariance data are required to assess uncertainties in design parameters in several nuclear applications. The error estimation of calculated quantities relies on the nuclear data uncertainty information available in the basic nuclear data libraries, such as the US Evaluated Nuclear Data Library, ENDF/B. The uncertainty files in the ENDF/B library are obtained from the analysis of experimental data and are stored as variance and covariance data. In this paper we address the generation of covariance data in the resonance region done with the computer code SAMMY. SAMMY is used in the evaluation of the experimental data in the resolved and unresolved resonance energy regions. The data fitting of cross sections is based on the generalised least-squares formalism (Bayesian theory) together with the resonance formalism described by R-matrix theory. Two approaches are used in SAMMY for the generation of resonance parameter covariance data. In the evaluation process SAMMY generates a set of resonance parameters that fit the data, and, it provides the resonance parameter covariances. For resonance parameter evaluations where there are no resonance parameter covariance data available, the alternative is to use an approach called the 'retroactive' resonance parameter covariance generation. In this paper, we describe the application of the retroactive covariance generation approach for the gadolinium isotopes.
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Affiliation(s)
- L C Leal
- Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, TN 37831, USA.
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Derrien H, Leal LC, Guber KH, Larson NM. Evaluation of silicon neutron resonance parameters in the thermal to 1800 keV energy range. Radiat Prot Dosimetry 2005; 115:227-31. [PMID: 16381717 DOI: 10.1093/rpd/nci117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Because silicon is a major constituent of concrete and soil, neutron and gamma ray information on silicon is important for reactor shielding and criticality safety calculations. Therefore, much effort was put into the ENDF/B-VI evaluation for the three stable isotopes of silicon. The neutron capture cross section of natural silicon was recently measured at the Oak Ridge Electron Linear Accelerator (ORELA) in the energy range 1-700 keV. Using the ENDF/B-VI evaluation for initial values, a new evaluation of the resonance parameters was performed by adding the results of the ORELA capture measurements to the experimental database. The computer code SAMMY was used for the analysis of the experimental data; the new version of SAMMY allows accurate calculations of the self-shielding and multiple scattering effects in the capture measurements. The accuracy of the radiative capture widths of the resonances was improved by this analysis. Accurate values of the s-, p- and d-wave neutron strength functions were also obtained. Although the resonance capture component of the present evaluation is 2-3 times smaller than that in ENDF/B-VI, the total capture cross section is much larger, at least for energies >250 keV, because the direct capture component contributes values of the same order of magnitude as the resonance component. The direct component was not taken into account in the ENDF/B-VI evaluation and was calculated for the first time in the present evaluation.
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Affiliation(s)
- H Derrien
- Oak Ridge National Laboratory, P.O. Box 2008, MS 6171, Oak Ridge, TN 37831-6171, USA.
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Guber KH, Leal LC, Sayer RO, Koehler PE, Valentine TE, Derrien H, Harvey JA. Neutron cross section measurements at ORELA for improved nuclear data and their application. Radiat Prot Dosimetry 2005; 116:579-81. [PMID: 16604703 DOI: 10.1093/rpd/nci100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
To support the Nuclear Criticality Safety Program, the Oak Ridge Electron Linear Accelerator (ORELA) has been used to measure the total and capture neutron cross sections of several nuclides in the energy range from 100 eV to -600 keV. Concerns about the use of existing cross section data in nuclear criticality calculations have been a prime motivator for the new cross-section measurements. Our new capture cross sections of aluminium, silicon, chlorine, fluorine and potassium in the energy range from 100 eV to 600 keV are substantially different from the cross sections in evaluated nuclear data files of ENDF/B-VI and JENDL-3.2.
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Affiliation(s)
- K H Guber
- Oak Ridge National Laboratory, P.O. Box 2008, MS 6354, Oak Ridge, TN 37831-6354, USA.
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Leal L, Derrien H, Larson N, Guber K, Valentine T, Sayer R. Nuclear Data Measurements, Analysis and Evaluation at the Oak Ridge National Laboratory in Support of Nuclear Criticality Safety. J NUCL SCI TECHNOL 2002. [DOI: 10.1080/00223131.2002.10875372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- N. M. Larson
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group Building 6011, MS 6370, P.O. Box 2008, Oak Ridge, Tennessee 37831-6370
| | - L. C. Leal
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group Building 6011, MS 6370, P.O. Box 2008, Oak Ridge, Tennessee 37831-6370
| | - H. Derrien
- Oak Ridge National Laboratory, Computational Physics and Engineering Division Radiation Information Analysis Section, Nuclear Data Group Building 6011, MS 6370, P.O. Box 2008, Oak Ridge, Tennessee 37831-6370
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